Liquid Vitamin B-Complex Great Tasting Tangerine

Liquid Vitamin B-Complex Great Tasting Tangerine

Nature's Answer4.7 (6,797 ratings)
Format:Liquid Quantity: 8 Liquid(s) · 16 servings
Goals

Product analysis

67 out of 100

Liquid Vitamin B-Complex Great Tasting Tangerine supplies B vitamins that support normal energy use and blood formation when dietary intake falls short.

AI assessment of the formula, label and price. How scoring works

Nutrient Quality65

Several identified B-vitamin forms offer favorable or acceptable quality. Folic acid is a less favorable folate form, and some other ingredients lack enough detail for a dependable comparison.

Ingredient Transparency89

Serving amounts and most ingredient forms are disclosed, making much of the formula easy to compare. A few unspecified forms leave some of the exact ingredient types unclear.

Value For Money33

Most of the available nutrient comparisons indicate a relatively expensive serving. Vitamin B6 compares more favorably, while value for several other ingredients remains uncertain.

Customer Satisfaction90

Customer feedback is very positive across a large number of ratings. The broad review base supports confidence in the satisfaction picture, without proving an energy benefit.

Product Focus61

The formula's main nutritional roles concern normal metabolism and energy-related processes. Filling a dietary shortfall may help related tiredness, while extra intake does not establish more energy when nutrition is adequate.

Format
Liquid
Container
8 Liquid(s)
Per serving
$0.98
Customer rating
4.7 · 6,797 ratings
Report analysis

Goals

Impact
High effect
A- Ingredient FitF PathwaysB EvidenceA+ Formulation Logic
Vitamin B5 · 70 mgRiboflavin · 50 mgThiamin · 50 mgVitamin B12 · 100 mcg
Study evidence
Thiamin Disputed 12 studies
Impact
High effect
B+ Ingredient FitF PathwaysA+ EvidenceA+ Formulation Logic
Biotin · 70 mcgNiacin · 70 mgVitamin B12 · 100 mcgRiboflavin · 50 mgThiamin · 50 mgVitamin B5 · 70 mgVitamin B6 · 50 mg
Study evidence
Biotin Supportive 5 studies
Niacin Supportive 17 studies
Thiamin Supportive 11 studies
Vitamin B6 Supportive 16 studies

Ingredients

IngredientAmount per servingScore
Calories
25 Calorie(s)
Total Carbohydrates
6 Gram(s)
Vitamin C (Ascorbic Acid)
120 mg
Vitamin E (D-Alpha-Tocopheryl Acetate)
7 mg
Thiamin (Thiamine Hydrochloride)
50 mg 76
Riboflavin (Riboflavin 5 Phosphate Sodium)
50 mg 82
Niacin (Niacinamide)
70 mg 65
Vitamin B6 (Pyridoxine Hydrochloride)
50 mg 70
Folate (Folic Acid)
200 mcg 10
Vitamin B12 (Cyanocobalamin)
100 mcg
Biotin
70 mcg
Pantothenic Acid (D-Calcium Pantothenate)
70 mg 70
Choline (Choline Bitartrate)
70 mg 58
Inositol
70 mg
Gluten Free Adults 18–50
Report overview
A+ Active Ingredient Quality & BioavailabilityA+ Dose, Safety & Label TransparencyF Value
Each serving provides 50 mg of riboflavin, and the cost per serving is high. It uses Riboflavin 5-Phosphate Sodium. No artificial colors, flavors or synthetic sweeteners are listed.
How this ingredient is rated

Active Ingredient Quality & Bioavailability100

It uses Riboflavin 5-Phosphate Sodium.
Riboflavin Form Quality
It uses Riboflavin 5-Phosphate Sodium.

Dose, Safety & Label Transparency100

Each serving provides 50 mg of riboflavin. No artificial colors, flavors or synthetic sweeteners are listed.
Dosage for Energy & Metabolism
Each serving provides 50 mg of riboflavin.
R5P Elemental Yield Transparency
The riboflavin amount is stated.
Additive Purity
No artificial colors, flavors or synthetic sweeteners are listed.

Value10

The cost per serving is high.
Price per Serving Value
The cost per serving is high.
A- Active Ingredient Quality & BioavailabilityC+ Dose, Safety & Label TransparencyF Value
Each serving provides 70 mg of niacin at a high cost per serving. The niacin form is niacinamide. Niacinamide is generally non-flushing.
How this ingredient is rated

Active Ingredient Quality & Bioavailability86

The niacin form is niacinamide. Niacinamide is a standard form of niacin.
Niacin Form & Goal Alignment
The niacin form is niacinamide.
Precursor Source Quality
Niacinamide is a standard form of niacin.

Dose, Safety & Label Transparency67

Each serving supplies 70 mg of niacin. Niacinamide is generally non-flushing.
Clarity of Chemical Form
The niacin form is niacinamide.
Form-Specific Dosage Efficacy
Each serving supplies 70 mg of niacin.
Flush Risk & Safety Labeling
Niacinamide is generally non-flushing.

Value20

The cost per serving is high.
Price Per Effective Serving
The cost per serving is high.
B- Active Ingredient Quality & BioavailabilityA+ Dose, Safety & Label TransparencyD- Value
The serving provides 50 mg of thiamin, with a high cost relative to the amount provided. Thiamine Hydrochloride is a standard water-soluble form of vitamin B1. No configured artificial sweeteners or colors were identified.
How this ingredient is rated

Active Ingredient Quality & Bioavailability70

Thiamine Hydrochloride is a standard water-soluble form of vitamin B1. No configured artificial sweeteners or colors were identified.
Thiamin Chemical Form
Thiamine Hydrochloride is a standard water-soluble form of vitamin B1.
Excipient Purity
No configured artificial sweeteners or colors were identified.

Dose, Safety & Label Transparency100

The serving amount is stated as 50 mg of thiamin.
Thiamin Dosage Potency
Each serving provides 50 mg of thiamin.
Label Transparency & Proprietary Blends
The thiamin amount per serving is stated.

Value40

The cost is high relative to the amount of thiamin provided.
Price per Declared Dose
The cost is high relative to the amount of thiamin provided.
Report alternatives

Sources

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

  1. 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
  2. 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
  3. 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
  4. 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
  5. 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 Support forRiboflavin
  6. 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
  7. 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
  8. 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
  9. Effects of thiamine supplementation on exercise-induced fatigue.
    Suzuki M; Itokawa Y · Metabolic brain disease · 1996
    Randomized trial16 participantsEnergy forThiamin
  10. 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
  11. A new perspective on vitamin B12 deficiency in rheumatology: a case-based review.
    Dułak NA; Rytlewska M; Jaskólska M; Chmielewski M · Rheumatology international · 2024
    Case series3 participantsEnergy forVitamin B12
  12. Effects of Vitamin B12 Supplementation on Cognitive Function, Depressive Symptoms, and Fatigue: A Systematic Review, Meta-Analysis, and Meta-Regression.
    Markun S; Gravestock I; Jäger L; Rosemann T; Pichierri G; Burgstaller JM · Nutrients · 2021
    Meta-analysis6,276 participants16 studies pooledEnergy forVitamin B12
  13. Patients' experiences with methylcobalamin injections in amyotrophic lateral sclerosis.
    Zubair AS; Saab L; Scharer K; Khokhar B · Brain circulation · 2024
    Qualitative study5 participantsEnergy forVitamin B12
  14. Cobalamin deficiency: clinical picture and radiological findings.
    Briani C; Dalla Torre C; Citton V; Manara R; Pompanin S; Binotto G; Adami F · Nutrients · 2014
    Narrative reviewEnergy forVitamin B12
  15. Vitamin B12 Deficiency: Common Questions and Answers.
    Patel H; McGuirk R · American family physician · 2025
    Narrative reviewEnergy forVitamin B12
  16. Biotin 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 Support forBiotin
  17. Pregnancy and lactation alter biomarkers of biotin metabolism in women consuming a controlled diet.
    Perry CA; West AA; Gayle A; Lucas LK; Yan J; Jiang X; Malysheva O; Caudill MA · The Journal of nutrition · 2015
    Clinical trial75 participantsMetabolism Support forBiotin
  18. Survey of the effect of biotin on glycemic control and plasma lipid concentrations in type 1 diabetic patients in kermanshah in iran (2008-2009)
    Hemmati M, Babaei H, Abdolsalehei M · Oman Medical Journal · 2013
    Randomized trial70 participantsMetabolism Support forBiotin
  19. Chromium picolinate and biotin combination improves glucose metabolism in treated, uncontrolled overweight to obese patients with type 2 diabetes
    César A Albarracin, Bobby C Fuqua, James L Evans, Ira D Goldfine · Diabetes/Metabolism Research and Reviews · 2008
    Randomized trial348 participantsMetabolism Support forBiotin
  20. Biotin supplementation reduces plasma triacylglycerol and VLDL in type 2 diabetic patients and in nondiabetic subjects with hypertriglyceridemia
    Cristina Revilla-Monsalve, Iván Zendejas-Ruiz, Sergio Islas-Andrade, Armida Báez-Saldaña, Miguel Angel Palomino-Garibay, Pedro Martín Hernández-Quiróz, Cristina Fernandez-Mejia · Biomedicine & Pharmacotherapy · 2006
    Randomized trial33 participantsMetabolism Support forBiotin