Product Image

B-Complex with Vitamin C Stress Formula

Solgar
4.7
★ ★ ★ ★ ★
(5311 ratings)
Niacin 100 mg
Vitamin B5 100 mg
Thiamin 10 mg
Choline 41 mg
Vitamin C 500 mg
Riboflavin 10 mg
Product Image
Score75
Useful vitamin C and B-vitamin coverage comes at a reasonable value, but standard forms and an opaque herbal blend keep it from standing out.
How scoring works
Quantity:100 Tablet(s) • (50 servings)
Goals:
Immunity
General Health
Energy
Vision Support

Score 75

Useful vitamin C and B-vitamin coverage comes at a reasonable value, but standard forms and an opaque herbal blend keep it from standing out.
How scoring works

Also available as

1 option
250 servings 2 Tablet(s) • 250 Tablet(s) • 125 servings $22.40 ($0.17 per serving)
$11.02($0.22 per serving)
Pure Formulas
$ 11.02
Vitacost
$ 11.19
Daily Vita
$ 12.13
iHerb
$ 11.02
Report prices

Analysis

The formula pairs 500 mg of vitamin C with a broad spread of B vitamins for antioxidant support and normal energy metabolism. Niacinamide and pantothenic acid are prominent, while thiamin, riboflavin, B6, folate, B12, and biotin provide supporting coverage.

Most active amounts are clearly listed, but the 13 mg herbal blend is not broken down. Several nutrients use basic forms, including thiamine mononitrate, pyridoxine hydrochloride, and cyanocobalamin, and the 41 mg choline amount is modest for dedicated choline use.

The serving cost is reasonable for a multi-nutrient formula, especially for someone who wants vitamin C and B vitamins together. It is less compelling for buyers seeking active B-vitamin forms, a meaningful choline dose, or a fully disclosed formula.

Who is it for
  • Adults seeking combined vitamin C and B-vitamin support
  • People who prefer a non-stimulant energy-support formula
  • Buyers comfortable with standard vitamin forms
Best for
  • General nutrient coverage
  • Energy metabolism support
  • Vitamin C plus B-complex convenience

Pros

  • Provides 500 mg of vitamin C
  • Covers the major B vitamins
  • Most vitamin amounts are individually disclosed
  • Reasonable value per serving

Cons

  • Uses several conventional rather than active vitamin forms
  • Choline is modest for a dedicated choline product
  • Herbal blend ingredients and amounts are not disclosed
  • Requires two tablets per serving

Warnings

  • The 500 mg ascorbic acid amount may cause stomach upset in sensitive users
  • The 100 mg niacinamide amount may cause nausea or digestive discomfort in some people
  • The undisclosed herbal blend prevents checking ingredient-specific sensitivities

Nutrient quality

77 High impact

The core vitamins use practical amounts that fit broad nutrient support. Conventional B-vitamin forms and a vague herbal addition keep the formula from standing out on form quality.

.

Ingredient transparency

66 High impact

Most active amounts are stated clearly and no major dose is concealed. The herbal blend lacks ingredient detail, while directions and non-active ingredients remain incomplete.

.

Customer satisfaction

73 High impact

The listed average rating is strong and supported by a very large review count. No specific review details are supplied to assess recurring complaints or purpose-related experiences.

.

Value for money

86 Highest impact

The formula provides many disclosed nutrients across numerous servings at a favorable serving cost. Conventional forms and the small vague blend slightly reduce the quality advantage.

.
Report analysis

Goals

Immunity
Immunity
Impact
High effect
B+ Goal FitA Strength of SupportB- CoverageC+ Formula Quality
Vitamin C · 500 mg

A 500 mg Vitamin C serving provides direct antioxidant and immune-cell support at the preferred threshold. The accompanying B vitamins support general metabolism but add limited immune-specific breadth.

Plain ascorbic acid is clearly disclosed but lacks buffering or enhanced delivery. The small herbal blend and repeated naming of several vitamins add complexity without materially improving immune support.

Study evidence
Vitamin C Supportive 53 studies
General Health
General Health
Impact
High effect
A- Goal FitB- Strength of SupportB- CoverageB Formula Quality
Folate · 166 mcg DFEVitamin B12 · 25 mcgVitamin C · 500 mg

Vitamin C at 500 mg combines with a broad B-complex to support antioxidant protection and normal energy metabolism. Most major ingredients have clear individual amounts.

Plain ascorbic acid is unbuffered, and several B vitamins use standard rather than active forms. The small herbal blend adds little verifiable depth, while the high niacinamide and pantothenic acid amounts may be unnecessary for routine use.

Study evidence
Folate Supportive 80 studies
Vitamin C Supportive 56 studies
Energy
Essential Energy Nutrients
Energy
Impact
High effect
B+ Goal FitC+ Strength of SupportB CoverageB- Formula Quality
Vitamin B5 · 100 mgRiboflavin · 10 mgThiamin · 10 mgVitamin B12 · 25 mcg

Riboflavin, Thiamin, and Vitamin B5 provide relevant support for energy. Riboflavin, Thiamin, and Vitamin B5 has a direct physiological connection to energy.

A maintenance riboflavin amount is provided as part of a B-complex with vitamin C. The B-complex supplies several related vitamins, though the thiamin amount is not high potency, while delivery details are limited and dose-adjusted value is weak.

Study evidence
Riboflavin Mixed 6 studies
Thiamin Disputed 12 studies
Vision Support
Macular and Blue Light DefenseNight Vision
Vision Support
Impact
High effect
C- Goal FitB Strength of SupportD CoverageA- Formula Quality
Vitamin C · 500 mg

Vitamin C provides useful antioxidant support for the lens and other ocular tissues. A single antioxidant cannot replace a broader vision formula built around macular carotenoids, zinc, or structural lipids.

The 500 mg amount is clearly disclosed and reaches a meaningful supplemental range. Plain L-ascorbic acid has no buffering or enhanced delivery, and the B-complex does not add direct ocular coverage.

Study evidence
Vitamin C Disputed 24 studies
Metabolism Boost
Metabolic B-Vitamins
Metabolism Boost
Impact
Moderate effect
C- Goal FitC Strength of SupportC- CoverageB Formula Quality
Biotin · 25 mcgNiacin · 100 mgVitamin B12 · 25 mcgRiboflavin · 10 mgThiamin · 10 mgVitamin B5 · 100 mgVitamin B6 · 10 mg

Thiamin, riboflavin, niacin, vitamin B6, and pantothenic acid support cellular energy and macronutrient conversion. The formula strengthens nutrient adequacy rather than directly increasing thermogenesis or fat oxidation.

Niacin and pantothenic acid are substantial, while several other B vitamins remain at routine amounts. Standard forms, a hard tablet, and an undisclosed herbal blend limit quality and precision.

Study evidence
Niacin Supportive 17 studies
Riboflavin Mixed 5 studies
Thiamin Supportive 11 studies
Vitamin B5 Supportive 12 studies
Vitamin B6 Supportive 16 studies
Skin Health
Skin Health
Impact
Moderate effect
C Goal FitB- Strength of SupportD+ CoverageD Formula Quality
Vitamin C · 500 mg

Vitamin C provides the main skin-relevant action through collagen synthesis and antioxidant defense. The B vitamins add general nutritional support rather than a distinct skin pathway.

Vitamin C is meaningfully dosed and clearly disclosed, although its standard form has no absorption upgrade. The large B-complex and tiny herbal blend make the formula less focused than a dedicated skin supplement.

Study evidence
Vitamin C Supportive 53 studies
Anti-Inflammatory Support
Cellular Defense
Anti-Inflammatory Support
Impact
Moderate effect
D Goal FitC Strength of SupportF CoverageD+ Formula Quality
Vitamin C · 500 mg

Vitamin C provides modest antioxidant support within a stress-oriented B-complex. The formula does not directly target major inflammatory pathways.

The vitamin C amount is useful, while the B vitamins add little specific anti-inflammatory depth. Most ingredients serve energy metabolism rather than the selected goal.

Study evidence
Vitamin C Supportive 50 studies

Ingredients

IngredientAmount per serving
Vitamin C (L-Ascorbic Acid)
 500 mg
Thiamine (Thiamine Mononitrate, Vitamin B1)
 10 mg
Riboflavin (Vitamin B2)
 10 mg
Niacin (Niacinamide, Vitamin B3)
 100 mg
Vitamin B6 (Pyridoxine Hydrochloride)
 10 mg
Folate
166 mcg DFE
Vitamin B12 (Cyanocobalamin)
 25 mcg
Biotin (D-Biotin)
 25 mcg
Pantothenic Acid (D-Calcium Pantothenate, Vitamin B5)
 100 mg
Choline (Choline Bitartrate)
 41 mg
Inositol
100 mg
Herbal Powdered Blend
13 mg
Gluten Free Adults 18–50 Vegan Kosher Dairy Free Sugar Free Halal Vegetarian
Report overview
Niacin (Niacinamide, Vitamin B3) · 100 mg OverallScore77
B- Active Ingredient Quality & BioavailabilityA Dose, Safety & Label TransparencyC Value

Niacinamide supplies a useful general dose of vitamin B3 within a broad B-complex, but it is less suited to cholesterol-focused use than nicotinic acid. The tablet has no stated release technology or no-flush labeling. Its cost per serving is moderate for standard niacin.

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Vitamin B5 (D-Calcium Pantothenate) · 100 mg OverallScore66
B Active Ingredient Quality & BioavailabilityB Dose, Safety & Label TransparencyF Value

D-calcium pantothenate is a well-absorbed standard form and supplies a useful maintenance-level amount. The label clearly identifies the vitamin source and active amount. Dose efficiency is weak for the cost, and missing excipient details limit the purity assessment.

View ingredientView products
Thiamin (Thiamine Mononitrate, Vitamin B1) · 10 mg OverallScore65
B- Active Ingredient Quality & BioavailabilityB- Dose, Safety & Label TransparencyD- Value

Thiamine is supplied in a standard water-soluble form with clear dose disclosure. The clearly listed 10 mg dose reaches the lower edge of the moderate range. The B-complex supplies several related vitamins, though the thiamin amount is not high potency, while delivery details are limited and dose-adjusted value is weak.

View ingredientView products
Loading alternative details
82 Performance

High Potency Vitamin B Complex

Lake Avenue Nutrition
<p>Active riboflavin 5-phosphate, P-5-P, methylfolate, and methylcobalamin offer more refined forms than the original formula. The niacin blend may cause flushing, and vitamin C is not included.</p>
77 Performance

Stress B-Complex

Bluebonnet
<p>A fully disclosed formula keeps vitamin C while expanding folate, vitamin B12, biotin, and pantothenic acid coverage. The broader label is easier to assess than the original herbal blend, although the high vitamin B6 amount is less suitable for routine long-term use.</p>
76 Performance

Megasorb B-Complex '50'

Solgar
<p>Riboflavin 5-phosphate, P-5-P, and pantethine improve several forms compared with the original conventional B vitamins. The formula omits vitamin C and uses a high vitamin B6 amount, so the form upgrade comes with a dose trade-off.</p>
76 Budget

B-Complex with Vitamin C Stress Formula

Solgar
<p>The same formula retains 500 mg of vitamin C, 100 mg of niacin, 100 mg of pantothenic acid, and the full B-vitamin profile. A larger supply lowers the serving cost, though the conventional forms and undefined herbal blend remain unchanged.</p>
77 Budget

B-50

NOW
<p>A broad B-50 profile provides thiamine, riboflavin, niacin, folate, vitamin B12, biotin, and pantothenic acid at a lower serving cost. Vitamin C is omitted, and 50 mg of pyridoxine is a less balanced choice for long-term daily use.</p>
77 Budget

B-50 Complex 50 mg

Source Naturals
<p>Core B vitamins plus 100 mg of pantothenic acid provide substantial energy-metabolism coverage at a lower serving cost. The formula drops vitamin C and uses high folate and pyridoxine amounts, so its value comes with a dose-balance trade-off.</p>
77 Value

B-50 Complex

Nature's Way
<p>Riboflavin 5-phosphate improves one key form while the broad B-complex costs less per serving than the original. Vitamin C is absent and the 50 mg pyridoxine amount makes prolonged daily use less appealing.</p>
77 Value

B-50

NOW
<p>Broad B-vitamin coverage, 50 mg of choline, and a large supply create stronger serving value for energy-focused use. The formula lacks vitamin C and relies on conventional forms, with 50 mg of vitamin B6 as an important long-term-use caution.</p>
80 Value

B-Complex '100'

Solgar
<p>A complete high-potency B profile and substantially lower serving cost provide strong short-term value for users seeking concentrated B vitamins. The missing vitamin C and 100 mg pyridoxine amount make it a poor fit for unsupervised long-term daily use.</p>
Report alternatives

Sources

Published studies used for the product analysis and the top-ranked studies for each ingredient and goal.

  1. Efficacy of Vitamin C as Glucocorticoid Substitute for Reducing Pain and Inflammation After Total Hip Arthroplasty: A Randomized Controlled Trial.
    Jiang W; Xu H; Jiang X; Zhan Y; Ju Y; Xie J; Huang Z; Huang Q; Pei F · The Journal of bone and joint surgery. American volume · 2025
    Randomized trial107 participantsAnti-Inflammatory Support forVitamin C
  2. The Impact of Vitamin C on Analgesic, Anti-inflammatory, and Hemostatic Outcomes After Total Hip and Knee Arthroplasty: A Systematic Review and Meta-Analysis.
    Moftakhari Hajimirzaei S; Bagherzadeh Cham M; Dolikhani M; Tabatabaee SM; Ebrahimpour A · The archives of bone and joint surgery · 2026
    Meta-analysis1,162 participants10 studies pooledAnti-Inflammatory Support forVitamin C
  3. The impact of vitamin C supplementation on the perioperative outcomes after total hip and knee arthroplasty: a systematic review and meta-analysis.
    Liu X; Guo J; Li Y; Yang Y; Liu M; Gao Q; Yang Y; Wu X; Yue C · BMC musculoskeletal disorders · 2026
    Meta-analysis852 participants8 studies pooledAnti-Inflammatory Support forVitamin C
  4. Therapeutic Impact of Ascorbic Acid on Oral and Periodontal Tissues: A Systematic Literature Review.
    Ruzijevaite G; Acaite E; Jagelaviciene E · Medicina (Kaunas, Lithuania) · 2025
    Systematic review811 participants17 studies pooledAnti-Inflammatory Support forVitamin C
  5. Oral vitamin C administration reduces early recurrence rates after electrical cardioversion of persistent atrial fibrillation and attenuates associated inflammation.
    Korantzopoulos P; Kolettis TM; Kountouris E; Dimitroula V; Karanikis P; Pappa E; Siogas K; Goudevenos JA · International journal of cardiology · 2005
    Randomized trial44 participantsAnti-Inflammatory Support forVitamin C
  6. Physicochemical properties of and volatile compounds in riboflavin fortified cloudy apple juice; study of its effect on job fatigue among Egyptian construction workers.
    Fouad S; Ibrahim GE; Hussein AMS; Ibrahim FA; El Gendy A · Heliyon · 2021
    Non-randomized trialEnergy forRiboflavin
  7. Vitamin B status in patients with chronic fatigue syndrome.
    Heap LC; Peters TJ; Wessely S · Journal of the Royal Society of Medicine · 1999
    Case-control study30 participantsEnergy forRiboflavin
  8. B-vitamins, related vitamers, and metabolites in patients with quiescent inflammatory bowel disease and chronic fatigue treated with high dose oral thiamine.
    Bager P; Hvas CL; Hansen MM; Ueland P; Dahlerup JF · Molecular medicine (Cambridge, Mass.) · 2023
    Observational studyEnergy forRiboflavin
  9. Metabolic features of chronic fatigue syndrome.
    Naviaux RK; Naviaux JC; Li K; Bright AT; Alaynick WA; Wang L; Baxter A; Nathan N; Anderson W; Gordon E · Proceedings of the National Academy of Sciences of the United States of America · 2024
    Case-control study84 participantsEnergy forRiboflavin
  10. Effectiveness of Riboflavin in Inherited Metabolic Diseases: A Systematic Review
    Bregje Jaeger, Nina N Stolwijk, Femke Aaldering, Charlotte A Ruys, Marije Smits, Nicole I Wolf, Carla E M Hollak, Annet M Bosch · Journal of Inherited Metabolic Disease · 2026
    Systematic review381 studies pooledEnergy Metabolism Boost forRiboflavin
  11. Influence of thiamin supplementation on the health and general well-being of an elderly Irish population with marginal thiamin deficiency.
    Smidt LJ; Cremin FM; Grivetti LE; Clifford AJ · Journal of gerontology · 1991
    Randomized trial80 participantsEnergy forThiamin
  12. Randomised clinical trial: high-dose oral thiamine versus placebo for chronic fatigue in patients with quiescent inflammatory bowel disease.
    Bager P; Hvas CL; Rud CL; Dahlerup JF · Alimentary pharmacology & therapeutics · 2021
    Randomized trial40 participantsEnergy forThiamin
  13. Dietary reference values for thiamin.
    EFSA Panel on Dietetic Products, Nutrition and Allergies (NDA); Turck D; Bresson JL; Burlingame B; Dean T; Fairweather-Tait S; Heinonen M; Hirsch-Ernst KI; Mangelsdorf I; McArdle HJ; Naska A; Nowicka G; Pentieva K; Sanz Y; Siani A; Sjödin A; Stern M; Tomé D; Van Loveren H; Vinceti M; Willatts P; Lamberg-Allardt C; Przyrembel H; Tetens I; Gudelj Rakic J; Ioannidou S; de Sesmaisons-Lecarré A; Forss AC; Neuhäuser-Berthold M · EFSA journal. European Food Safety Authority · 2026
    Guideline / consensusEnergy forThiamin
  14. Effects of thiamine supplementation on exercise-induced fatigue.
    Suzuki M; Itokawa Y · Metabolic brain disease · 1996
    Randomized trial16 participantsEnergy forThiamin
  15. Long-term maintenance treatment with 300 mg thiamine for fatigue in patients with inflammatory bowel disease: results from an open-label extension of the TARIF study.
    Bager P; Hvas CL; Rud CL; Dahlerup JF · Scandinavian journal of gastroenterology · 2022
    Randomized trialEnergy forThiamin
  16. Intakes of Folate, Vitamin B6, and Vitamin B12 in Relation to All-Cause and Cause-Specific Mortality: A National Population-Based Cohort.
    Bo Y; Xu H; Zhang H; Zhang J; Wan Z; Zhao X; Yu Z · Nutrients · 2022
    Cohort study55,569 participantsGeneral Health forFolate
  17. The responsiveness of plasma homocysteine to small increases in dietary folic acid: a primary care study.
    Schorah CJ; Devitt H; Lucock M; Dowell AC · European journal of clinical nutrition · 1998
    Randomized trial119 participantsGeneral Health forFolate
  18. Associations of Serum Folate and Homocysteine Concentrations with All-Cause, Cardiovascular Disease, and Cancer Mortality in Men and Women in Korea: the Cardiovascular Disease Association Study.
    Song S; Song BM; Park HY · The Journal of nutrition · 2023
    Cohort study21,260 participantsGeneral Health forFolate
  19. The concept of folic acid supplementation and its role in prevention of neural tube defect among pregnant women: PRISMA.
    Seyoum Tola F · Medicine · 2024
    Systematic reviewGeneral Health forFolate
  20. Systematic review of adverse health outcomes associated with high serum or red blood cell folate concentrations.
    Colapinto CK; O'Connor DL; Sampson M; Williams B; Tremblay MS · Journal of public health (Oxford, England) · 2017
    Systematic review71,847 participants46 studies pooledGeneral Health forFolate
  21. Dietary intake and blood concentrations of antioxidants and the risk of cardiovascular disease, total cancer, and all-cause mortality: a systematic review and dose-response meta-analysis of prospective studies.
    Aune D; Keum N; Giovannucci E; Fadnes LT; Boffetta P; Greenwood DC; Tonstad S; Vatten LJ; Riboli E; Norat T · The American journal of clinical nutrition · 2019
    Meta-analysis69 studies pooledGeneral Health forVitamin C
  22. Scientific Opinion on the substantiation of a health claim related to vitamin C and increasing non haem iron absorption pursuant to Article 14 of Regulation (EC) No 1924/2006.
    EFSA Panel on Dietetic Products, Nutrition and Allergies (NDA) · EFSA journal. European Food Safety Authority · 2026
    Guideline / consensusGeneral Health forVitamin C
  23. Vitamin C Depletion and All-Cause Mortality in Renal Transplant Recipients.
    Sotomayor CG; Eisenga MF; Gomes Neto AW; Ozyilmaz A; Gans ROB; Jong WHA; Zelle DM; Berger SP; Gaillard CAJM; Navis GJ; Bakker SJ · Nutrients · 2018
    Cohort study598 participantsGeneral Health forVitamin C
  24. Associations of Serum Biomarkers of Fruit and Vegetable Intake With the Risk of Cause-Specific Mortality and All-Cause Mortality: A National Prospective Cohort Study.
    Pu L; Zhang R; Wang X; Zhao T; Sun H; Han L · Frontiers in nutrition · 2022
    Cohort study12,530 participantsGeneral Health forVitamin C
  25. Relation between plasma ascorbic acid and mortality in men and women in EPIC-Norfolk prospective study: a prospective population study. European Prospective Investigation into Cancer and Nutrition.
    Khaw KT; Bingham S; Welch A; Luben R; Wareham N; Oakes S; Day N · Lancet (London, England) · 2001
    Cohort study19,496 participantsGeneral Health forVitamin C
  26. Vitamin C and contribution to the normal function of the immune system: evaluation of a health claim pursuant to Article 14 of Regulation (EC) No 1924/2006.
    EFSA Panel on Dietetic Products, Nutrition and Allergies (NDA) · EFSA journal. European Food Safety Authority · 2026
    Guideline / consensusImmunity forVitamin C
  27. Therapeutic effects of high-dose vitamin C supplementation in patients with COVID-19: a meta-analysis.
    Sun L; Zhao JH; Fan WY; Feng B; Liu WW; Chen RQ; Ban C; Dang AG; Wang M; Luo KT; Zhou GY; Yu FF; Ba Y · Nutrition reviews · 2024
    Meta-analysis2,334 participants14 studies pooledImmunity forVitamin C
  28. Effect of micronutrient supplements on influenza and other respiratory tract infections among adults: a systematic review and meta-analysis.
    Abioye AI; Bromage S; Fawzi W · BMJ global health · 2021
    Meta-analysisImmunity forVitamin C
  29. New evidence for antioxidant properties of vitamin C.
    Vojdani A; Bazargan M; Vojdani E; Wright J · Cancer detection and prevention · 2001
    Randomized trial20 participantsImmunity forVitamin C
  30. Enhanced Vitamin C Delivery: A Systematic Literature Review Assessing the Efficacy and Safety of Alternative Supplement Forms in Healthy Adults.
    Calder PC; Kreider RB; McKay DL · Nutrients · 2025
    Systematic review13 studies pooledImmunity forVitamin C
  31. Niacin and contribution to normal energy-yielding metabolism: evaluation of a health claim pursuant to Article 14 of Regulation (EC) No 1924/2006.
    EFSA Panel on Dietetic Products, Nutrition and Allergies (NDA) · EFSA journal. European Food Safety Authority · 2026
    Guideline / consensusMetabolism Boost forNiacin
  32. Targeted Microbiome Intervention by Microencapsulated Delayed-Release Niacin Beneficially Affects Insulin Sensitivity in Humans.
    Fangmann D; Theismann EM; Türk K; Schulte DM; Relling I; Hartmann K; Keppler JK; Knipp JR; Rehman A; Heinsen FA; Franke A; Lenk L; Freitag-Wolf S; Appel E; Gorb S; Brenner C; Seegert D; Waetzig GH; Rosenstiel P; Schreiber S; Schwarz K; Laudes M · Diabetes care · 2018
    Clinical trialMetabolism Boost forNiacin
  33. The differential impact of three different NAD+ boosters on circulatory NAD and microbial metabolism in humans.
    Christen S; Redeuil K; Goulet L; Giner MP; Breton I; Rota R; Frézal A; Nazari A; Van den Abbeele P; Godin JP; Nutten S; Cuenoud B · Nature metabolism · 2026
    Randomized trial65 participantsMetabolism Boost forNiacin
  34. Effects of extended-release niacin on lipid profile and adipocyte biology in patients with impaired glucose tolerance.
    Linke A; Sonnabend M; Fasshauer M; Höllriegel R; Schuler G; Niebauer J; Stumvoll M; Blüher M · Atherosclerosis · 2009
    Randomized trial30 participantsMetabolism Boost forNiacin
  35. Effect of the antilipolytic nicotinic acid analogue acipimox on whole-body and skeletal muscle glucose metabolism in patients with non-insulin-dependent diabetes mellitus.
    Vaag A; Skött P; Damsbo P; Gall MA; Richter EA; Beck-Nielsen H · The Journal of clinical investigation · 1991
    Clinical trial12 participantsMetabolism Boost forNiacin
  36. Disorders of flavin adenine dinucleotide metabolism: MADD and related deficiencies.
    Mereis M; Wanders RJA; Schoonen M; Dercksen M; Smuts I; van der Westhuizen FH · The international journal of biochemistry & cell biology · 2024
    Systematic reviewMetabolism Boost forRiboflavin
  37. Anaemia during pregnancy: could riboflavin deficiency be implicated?
    Duffy B; McNulty H; Ward M; Pentieva K · The Proceedings of the Nutrition Society · 2026
    Narrative reviewMetabolism Boost forRiboflavin
  38. Effects of riboflavin and folic acid supplementation on plasma homocysteine levels in healthy subjects.
    Chuang CZ; Boyles A; Legardeur B; Su J; Japa S; Lopez-S A · The American journal of the medical sciences · 2006
    Non-randomized trial34 participantsMetabolism Boost forRiboflavin
  39. Riboflavin and riboflavin-derived cofactors in adolescent girls with anorexia nervosa.
    Capo-chichi CD; Guéant JL; Lefebvre E; Bennani N; Lorentz E; Vidailhet C; Vidailhet M · The American journal of clinical nutrition · 1999
    Clinical trial34 participantsMetabolism Boost forRiboflavin
  40. Neurological, Psychiatric, and Biochemical Aspects of Thiamine Deficiency in Children and Adults.
    Dhir S; Tarasenko M; Napoli E; Giulivi C · Frontiers in psychiatry · 2026
    Narrative reviewMetabolism Boost forThiamin
  41. Plasma vitamin profiles and their associations with metabolic health and mental wellbeing in midlife Asian women.
    Tan KML; Tint MT; Cabral RM; Lau R; Kee MZL; Garg V; De Iorio M; Tan SSL; Eriksson JG · Scientific reports · 2026
    Cohort study662 participantsMetabolism Boost forThiamin
  42. High-resolution plasma metabolomics and thiamine status in critically Ill adult patients.
    Gundogan K; Nellis MM; Ozer NT; Ergul SS; Sahin GG; Temel S; Yuksel RC; Teeny S; Alvarez JA; Sungur M; Jones DP; Ziegler TR · Metabolomics : Official journal of the Metabolomic Society · 2024
    Cross-sectional study76 participantsMetabolism Boost forThiamin
  43. Pathophysiology, prevention, and treatment of beriberi after gastric surgery.
    Wilson RB · Nutrition reviews · 2021
    Narrative reviewMetabolism Boost forThiamin
  44. Red blood cell transketolase activity and the effect of thiamine supplementation in patients with chronic liver disease.
    Rossouw JE; Labadarios D; Krasner N; Davis M; Williams R · Scandinavian journal of gastroenterology · 1978
    Single-arm trialMetabolism Boost forThiamin
  45. Apolipoprotein E and sex modulate fatty acid metabolism in a prospective observational study of cognitive decline.
    González-Domínguez R; Castellano-Escuder P; Lefèvre-Arbogast S; Low DY; Du Preez A; Ruigrok SR; Lee H; Helmer C; Pallàs M; Urpi-Sarda M; Sánchez-Pla A; Korosi A; Lucassen PJ; Aigner L; Manach C; Thuret S; Samieri C; Andres-Lacueva C · Alzheimer's research & therapy · 2022
    Observational studyMetabolism Boost forVitamin B5
  46. Exploring auxotrophy and engineering vitamin B6 prototrophy in the acetogen Clostridium sp. AWRP.
    Kwon SJ; Lee J; Lee HS · Applied and environmental microbiology · 2024
    Clinical trialMetabolism Boost forVitamin B5
  47. Pantothenate utilization by Plasmodium as a target for antimalarial chemotherapy.
    Spry C; van Schalkwyk DA; Strauss E; Saliba KJ · Infectious disorders drug targets · 2010
    Narrative reviewMetabolism Boost forVitamin B5
  48. Optimum nutrition: thiamin, biotin and pantothenate.
    Bender DA · The Proceedings of the Nutrition Society · 1999
    Narrative reviewMetabolism Boost forVitamin B5
  49. Serum metabolites of hypertension among Chinese adolescents aged 12-17 years.
    Sun J; Ding W; Liu X; Zhao M; Xi B · Journal of human hypertension · 2022
    Other77 participantsMetabolism Boost forVitamin B5
  50. Plasma vitamin B6 vitamers before and after oral vitamin B6 treatment: a randomized placebo-controlled study.
    Bor MV; Refsum H; Bisp MR; Bleie Ø; Schneede J; Nordrehaug JE; Ueland PM; Nygard OK; Nexø E · Clinical chemistry · 2003
    Randomized trial90 participantsMetabolism Boost forVitamin B6
  51. Dietary one-carbon metabolism nutrients and risk of MASLD progression: a prospective cohort study.
    Shen L; Wang K; Li R; Li Y; Guo Y; Li F; Yuan J; Yang Z; Xia B; Lin X · European journal of clinical nutrition · 2026
    Cohort study46,800 participantsMetabolism Boost forVitamin B6
  52. Associations of Vitamin B6 Intake and Plasma Pyridoxal 5'-Phosphate with Plasma Polyunsaturated Fatty Acids in US Older Adults: Findings from NHANES 2003-2004.
    Kim H; Enrione EB; Narayanan V; Li T; Campa A · Nutrients · 2022
    Cross-sectional study461 participantsMetabolism Boost forVitamin B6
  53. Influence of oral contraceptives, pyridoxine (vitamin B6), and tryptophan on carbohydrate metabolism.
    Adams PW; Wynn V; Folkard J; Seed M · Lancet (London, England) · 1976
    Clinical trial46 participantsMetabolism Boost forVitamin B6
  54. Effect of oral contraceptives and vitamin B6 deficiency on carbohydrate metabolism.
    Rose DP; Leklem JE; Brown RR; Linkswiler HM · The American journal of clinical nutrition · 1975
    Clinical trialMetabolism Boost forVitamin B6
  55. Evaluation of the anti-wrinkle effect of an ascorbic acid-loaded dissolving microneedle patch via a double-blind, placebo-controlled clinical study.
    Lee C; Yang H; Kim S; Kim M; Kang H; Kim N; An S; Koh J; Jung H · International journal of cosmetic science · 2017
    Randomized trial23 participantsSkin Health forVitamin C
  56. Comparative Study on the Outcome of Periorbital Wrinkles Treated with Laser-Assisted Delivery of Vitamin C or Vitamin C Plus Growth Factors: A Randomized, Double-blind, Clinical Trial.
    Machado BHB; Frame J; Zhang J; Najlah M · Aesthetic plastic surgery · 2021
    Randomized trial149 participantsSkin Health forVitamin C
  57. Randomized trial of topical ascorbic acid in DMSO versus imiquimod for the treatment of basal cell carcinoma.
    Burke B; Bailie JE · Biomedicine & pharmacotherapy = Biomedecine & pharmacotherapie · 2022
    Randomized trial25 participantsSkin Health forVitamin C
  58. Vitamin C improves healing of foot ulcers: a randomised, double-blind, placebo-controlled trial.
    Gunton JE; Girgis CM; Lau T; Vicaretti M; Begg L; Flood V · The British journal of nutrition · 2022
    Randomized trial16 participantsSkin Health forVitamin C
  59. Dietary nutrient intakes and skin-aging appearance among middle-aged American women.
    Cosgrove MC; Franco OH; Granger SP; Murray PG; Mayes AE · The American journal of clinical nutrition · 2007
    Cross-sectional study4,025 participantsSkin Health forVitamin C
  60. Role of Oral Vitamin 'C' on Astigmatic Errors in Phacoemulsification.
    Mohan S; Sah K; Khattri M; Ahmad L; Sachan SK · Current eye research · 2021
    Randomized trial400 participantsVision Support forVitamin C
  61. Ascorbic acid metabolites are involved in intraocular pressure control in the general population.
    Hysi PG; Khawaja AP; Menni C; Tamraz B; Wareham N; Khaw KT; Foster PJ; Benet LZ; Spector TD; Hammond CJ · Redox biology · 2019
    Observational studyVision Support forVitamin C
  62. Nutritional modulation of cataract.
    Weikel KA; Garber C; Baburins A; Taylor A · Nutrition reviews · 2014
    Narrative reviewVision Support forVitamin C
  63. Dietary n-3 Fatty Acid, α-Tocopherol, Zinc, vitamin D, vitamin C, and β-carotene are Associated with Age-Related Macular Degeneration in Japan.
    Aoki A; Inoue M; Nguyen E; Obata R; Kadonosono K; Shinkai S; Hashimoto H; Sasaki S; Yanagi Y · Scientific reports · 2017
    Case-control study530 participantsVision Support forVitamin C
  64. Adherence to a Mediterranean diet, lifestyle and age-related macular degeneration: the Coimbra Eye Study - report 3.
    Raimundo M; Mira F; Cachulo MDL; Barreto P; Ribeiro L; Farinha C; Laíns I; Nunes S; Alves D; Figueira J; Merle BM; Delcourt C; Santos L; Silva R · Acta ophthalmologica · 2019
    Case-control study883 participantsVision Support forVitamin C