Published studies used for the product analysis and the top-ranked studies for each ingredient and goal.
- The Role of Sesbania grandiflora-Derived Biotin and Bambusa arundinacea-Derived Silica Extracts in Promoting Hair, Skin, and Nail Health: A Randomized, Double-Blind, Placebo-Controlled Clinical Study.
Patel MN; Maheshvari J; Patel N · Cureus · 2025
Randomized trial105 participantsflagHair Health flagNail Health flagSkin Health forscienceBiotin
- Low serum biotinidase activity in children with valproic acid monotherapy.
Schulpis KH; Karikas GA; Tjamouranis J; Regoutas S; Tsakiris S · Epilepsia · 2001
Clinical trial125 participantsflagHair Health flagSkin Health forscienceBiotin
- The Infatuation With Biotin Supplementation: Is There Truth Behind Its Rising Popularity? A Comparative Analysis of Clinical Efficacy versus Social Popularity.
Soleymani T; Lo Sicco K; Shapiro J · Journal of drugs in dermatology : JDD · 2018
Narrative reviewflagHair Health forscienceBiotin
- Vitamins A, B, C, and D: A Short Review for the Dermatologist.
Coerdt KM; Goggins CA; Khachemoune A · Alternative therapies in health and medicine · 2021
Narrative reviewflagHair Health forscienceBiotin
- Biotin for the treatment of nail disease: what is the evidence?
Lipner SR; Scher RK · The Journal of dermatological treatment · 2018
Narrative reviewflagNail Health forscienceBiotin
- Treatment of brittle fingernails and onychoschizia with biotin: scanning electron microscopy.
Colombo VE; Gerber F; Bronhofer M; Floersheim GL · Journal of the American Academy of Dermatology · 1991
Other32 participantsflagNail Health forscienceBiotin
- Brittle nails: response to daily biotin supplementation.
Hochman LG; Scher RK; Meyerson MS · Cutis · 1993
Case series35 participantsflagNail Health forscienceBiotin
- Vitamins and minerals: their role in nail health and disease.
Scheinfeld N; Dahdah MJ; Scher R · Journal of drugs in dermatology : JDD · 2007
Narrative reviewflagNail Health forscienceBiotin flagNail Health forscienceZinc
- Nail Supplements: When, How, and Why?
Zaraa I; Richert B · Skin appendage disorders · 2026
Narrative reviewflagNail Health forscienceBiotin
- Brittle nails.
Iorizzo M; Pazzaglia M; M Piraccini B; Tullo S; Tosti A · Journal of cosmetic dermatology · 2009
Narrative reviewflagNail Health forscienceBiotin
- Beyond Efficacy: 0.6% Selenium Disulfide Shampoo Matches 2% Ketoconazole for Seborrheic Dermatitis with Superior Cosmesis.
Farris PK; Barbosa V; Houshman EB; Kovylkina N · Journal of drugs in dermatology : JDD · 2026
Randomized trial87 participantsflagHair Health forscienceSelenium
- Selenium Disulfide-based shampoo applied for 4 weeks significantly improves dandruff and seborrheic dermatitis.
Turcu G; Artenie C; Nowicka D; Arenbergerová M; Lazaridou E; Khobzei K; Ataseven A; Part M; Leclerc-Mercier S · European journal of dermatology : EJD · 2023
Observational study1,407 participantsflagHair Health forscienceSelenium
- A Comparative Randomized Clinical Study Assessing the Efficacy of a 1% Selenium Disulfide-Based Shampoo versus 2% Ketoconazole Shampoo in Subjects with Moderate to Severe Scalp Seborrheic Dermatitis.
Barbosa V; Melo DF; Vañó-Galván S; Lutchmanen-Kolanthan V; Sant'Anna B; Leclerc-Mercier S; Reygagne P · Skin appendage disorders · 2025
Randomized trial64 participantsflagHair Health forscienceSelenium
- Changes of serum trace elements level in patients with alopecia areata: A meta-analysis.
Jin W; Zheng H; Shan B; Wu Y · The Journal of dermatology · 2018
Meta-analysis764 participantsflagHair Health forscienceSelenium
- Scientific opinion on the tolerable upper intake level for selenium.
EFSA Panel on Nutrition, Novel Foods and Food Allergens (NDA); Turck D; Bohn T; Castenmiller J; de Henauw S; Hirsch-Ernst KI; Knutsen HK; Maciuk A; Mangelsdorf I; McArdle HJ; Peláez C; Pentieva K; Siani A; Thies F; Tsabouri S; Vinceti M; Aggett P; Crous Bou M; Cubadda F; Ciccolallo L; de Sesmaisons Lecarré A; Fabiani L; Titz A; Naska A · EFSA journal. European Food Safety Authority · 2023
Systematic reviewflagHair Health forscienceSelenium
- Management of hair loss associated with endocrine therapy in patients with breast cancer: an overview.
Karatas F; Sahin S; Sever AR; Altundag K · SpringerPlus · 2016
Narrative reviewflagHair Health forscienceVitamin C
- Elucidating causal relationships of diet-derived circulating antioxidants and the risk of non-scarring alopecia: A Mendelian randomization study.
Ba Y; Shen L; Peng X; Zhang Y; Wang J · Medicine · 2024
Methods validation study201,019 participantsflagHair Health forscienceVitamin C
- Alterations of plasma antioxidants and mitochondrial DNA mutation in hair follicles of smokers.
Liu CS; Chen HW; Lii CK; Tsai CS; Kuo CL; Wei YH · Environmental and molecular mutagenesis · 2002
Observational studyflagHair Health forscienceVitamin C
- Removal of synthetic hair dye using formamidine sulfinic acid and other sulfinate precursors.
Hawkes JA; Lewis DM; Mama J; Murray J · International journal of cosmetic science · 2026
Methods validation studyflagHair Health forscienceVitamin C
- A Zinc Sulphate-Resistant Acrodermatitis Enteropathica Patient with a Novel Mutation in SLC39A4 Gene.
Kilic M; Taskesen M; Coskun T; Gürakan F; Tokatli A; Sivri HS; Dursun A; Schmitt S; Küry S · JIMD reports · 2013
Case reportflagHair Health forscienceVitamin C
- The effects of minoxidil, 1% pyrithione zinc and a combination of both on hair density: a randomized controlled trial.
Berger RS; Fu JL; Smiles KA; Turner CB; Schnell BM; Werchowski KM; Lammers KM · The British journal of dermatology · 2003
Randomized trial200 participantsflagHair Health forscienceZinc
- Incubatory environment of the scalp impacts pre-emergent hair to affect post-emergent hair cuticle integrity.
Schwartz JR; Henry JP; Kerr KM; Flagler MJ; Page SH; Redman-Furey N · Journal of cosmetic dermatology · 2018
Randomized trialflagHair Health forscienceZinc
- A comparison of hair quality and cosmetic acceptance following the use of two anti-dandruff shampoos.
Draelos ZD; Kenneally DC; Hodges LT; Billhimer W; Copas M; Margraf C · The journal of investigative dermatology. Symposium proceedings · 2006
Randomized trial40 participantsflagHair Health forscienceZinc
- BMI and levels of zinc, copper in hair, serum and urine of Turkish male patients with androgenetic alopecia.
Ozturk P; Kurutas E; Ataseven A; Dokur N; Gumusalan Y; Gorur A; Tamer L; Inaloz S · Journal of trace elements in medicine and biology : organ of the Society for Minerals and Trace Elements (GMS) · 2015
Case-control study216 participantsflagHair Health forscienceZinc
- Analysis of serum zinc and copper concentrations in hair loss.
Kil MS; Kim CW; Kim SS · Annals of dermatology · 2013
Case-control study342 participantsflagHair Health forscienceZinc
- Treatment of brittle nail with a hydroxypropyl chitosan-based lacquer, alone or in combination with oral biotin: A randomized, assessor-blinded trial.
Chiavetta A; Mazzurco S; Secolo MP; Tomarchio G; Milani M · Dermatologic therapy · 2020
Randomized trial50 participantsflagNail Health forscienceBiotin
- Acute selenium toxicity associated with a dietary supplement.
MacFarquhar JK; Broussard DL; Melstrom P; Hutchinson R; Wolkin A; Martin C; Burk RF; Dunn JR; Green AL; Hammond R; Schaffner W; Jones TF · Archives of internal medicine · 2010
Observational study201 participantsflagNail Health forscienceSelenium
- Vitamin C Deficiency in Inflammatory Bowel Disease: The Forgotten Micronutrient.
Dunleavy KA; Ungaro RC; Manning L; Gold S; Novak J; Colombel JF · Crohn's & colitis 360 · 2023
Other20 participantsflagNail Health forscienceVitamin C
- Evaluation of biophysical skin parameters and hair changes in patients with acne vulgaris treated with isotretinoin, and the effect of biotin use on these parameters.
Aksac SE; Bilgili SG; Yavuz GO; Yavuz IH; Aksac M; Karadag AS · International journal of dermatology · 2021
Non-randomized trial60 participantsflagSkin Health forscienceBiotin
- Generalized seborrhoeic dermatitis. Clinical and therapeutic data of 25 patients.
Messaritakis J; Kattamis C; Karabula C; Matsaniotis N · Archives of disease in childhood · 1976
Non-randomized trial25 participantsflagSkin Health forscienceBiotin
- Holocarboxylase synthetase deficiency: novel clinical and molecular findings.
Tammachote R; Janklat S; Tongkobpetch S; Suphapeetiporn K; Shotelersuk V · Clinical genetics · 2010
Case series4 participantsflagSkin Health forscienceBiotin
- Comparative clinical trial of bifonazole solution versus selenium sulphide shampoo in the treatment of pityriasis versicolor.
Chu AC · Dermatologica · 1985
Randomized trial38 participantsflagSkin Health forscienceSelenium
- Selenium supplementation and secondary prevention of nonmelanoma skin cancer in a randomized trial.
Duffield-Lillico AJ; Slate EH; Reid ME; Turnbull BW; Wilkins PA; Combs GF; Park HK; Gross EG; Graham GF; Stratton MS; Marshall JR; Clark LC; Nutritional Prevention of Cancer Study Group · Journal of the National Cancer Institute · 2003
Randomized trial1,312 participantsflagSkin Health forscienceSelenium
- Evidence-Based Nutritional Interventions in Wound Care.
Saeg F; Orazi R; Bowers GM; Janis JE · Plastic and reconstructive surgery · 2021
Systematic review2,339 participants36 studies pooledflagSkin Health forscienceSelenium flagSkin Health forscienceZinc
- A randomized, double-blind placebo-controlled trial evaluating the effects of vitamin E and selenium on arsenic-induced skin lesions in Bangladesh.
Verret WJ; Chen Y; Ahmed A; Islam T; Parvez F; Kibriya MG; Graziano JH; Ahsan H · Journal of occupational and environmental medicine · 2006
Randomized trial121 participantsflagSkin Health forscienceSelenium
- The Whitening, Moisturizing, Anti-aging Activities, and Skincare Evaluation of Selenium-Enriched Mung Bean Fermentation Broth.
Wei K; Guo C; Zhu J; Wei Y; Wu M; Huang X; Zhang M; Li J; Wang X; Wang Y; Wei X · Frontiers in nutrition · 2022
Clinical trial31 participantsflagSkin Health forscienceSelenium
- Efficacy and Tolerability of Topical 0.1% Stabilized Bioactive Retinol for Photoaging: A Vehicle-Controlled Integrated Analysis.
Farris P; Berson D; Bhatia N; Goldberg D; Lain E; Mariwalla K; Zeichner J; Miller D; McGuire T; Kizoulis M · Journal of drugs in dermatology : JDD · 2024
Meta-analysis471 participants6 studies pooledflagSkin Health forscienceVitamin A
- Tensile properties and contours of aging facial skin. A controlled double-blind comparative study of the effects of retinol, melibiose-lactose and their association.
Piérard-Franchimont C; Castelli D; Cromphaut IV; Bertin C; Ries G; Cauwenbergh G; Piérard GE · Skin research and technology : official journal of International Society for Bioengineering and the Skin (ISBS) [and] International Society for Digital Imaging of Skin (ISDIS) [and] International Society for Skin Imaging (ISSI) · 2016
Randomized trial120 participantsflagSkin Health forscienceVitamin A
- Antiaging action of retinol: from molecular to clinical.
Bellemère G; Stamatas GN; Bruère V; Bertin C; Issachar N; Oddos T · Skin pharmacology and physiology · 2009
Randomized trial48 participantsflagSkin Health forscienceVitamin A
- An Updated Review of Topical Tretinoin in Dermatology: From Acne and Photoaging to Skin Cancer.
Balado-Simó P; Morgado-Carrasco D; Gómez-Armayones S; López-Ferrer A; Barco D; Ferrándiz-Pulido C; Podlipnik S · Journal of clinical medicine · 2025
Narrative reviewflagSkin Health forscienceVitamin A
- Novel Cyclized Hexapeptide-9 Outperforms Retinol Against Skin Aging: A Randomized, Double-Blinded, Active- and Vehicle-Controlled Clinical Trial.
Chang H; Tao K; Yang Y; Wang Y; Ge M; Wang X; Tang S; Yu H · Journal of cosmetic dermatology · 2025
Randomized trialflagSkin Health forscienceVitamin A
- 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 participantsflagSkin Health forscienceVitamin C
- 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 participantsflagSkin Health forscienceVitamin C
- 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 participantsflagSkin Health forscienceVitamin C
- 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 participantsflagSkin Health forscienceVitamin C
- 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 participantsflagSkin Health forscienceVitamin C
- Sex-related differences in response to zinc pyrithione shampoo vs. non-anti-dandruff shampoo.
Collins LZ; Baines FL; Matheson JR; Turner GA; Diao Y; Li Y; Pi Y · International journal of cosmetic science · 2019
Meta-analysis2,088 participants20 studies pooledflagSkin Health forscienceZinc
- Maintenance of an Acidic Skin Surface with a Novel Zinc Lactobionate Emollient Preparation Improves Skin Barrier Function in Patients with Atopic Dermatitis.
Andrew PV; Pinnock A; Poyner A; Brown K; Chittock J; Kay LJ; Cork MJ; Danby SG · Dermatology and therapy · 2024
Cohort study23 participantsflagSkin Health forscienceZinc
- Spatial expression of metallothionein, matrix metalloproteinase-1 and Ki-67 in human epidermal wounds treated with zinc and determined by quantitative immunohistochemistry: A randomised double-blind trial.
Ågren MS; Chafranska L; Eriksen JO; Forman JL; Bjerrum MJ; Schjerling P; Larsen HF; Cottarelli E; Jorgensen LN; Gjerdrum LMR · European journal of cell biology · 2021
Randomized trial30 participantsflagSkin Health forscienceZinc
- A pilot trial using topical regular crystalline insulin vs. aqueous zinc solution for uncomplicated cutaneous wound healing: Impact on quality of life.
Attia EA; Belal DM; El Samahy MH; El Hamamsy MH · Wound repair and regeneration : official publication of the Wound Healing Society [and] the European Tissue Repair Society · 2014
Randomized trial90 participantsflagSkin Health forscienceZinc