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Hairfinity

Brock Beauty
3.5
★ ★ ★ ★ ★
(43 ratings)
Biotin 2500 mcg
Vitamin B5 100 mg
Calcium 217 mg
Vitamin A 8150 IU
Vitamin D 100 IU
Folate 200 mcg
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Score45
A hair-focused formula built around high biotin and an opaque proprietary blend. High preformed vitamin A and incomplete disclosure are major limitations.
How scoring works
Quantity:60 Capsule(s) • (30 servings)
Goals:
Nail Health
Hair Health

Score 45

A hair-focused formula built around high biotin and an opaque proprietary blend. High preformed vitamin A and incomplete disclosure are major limitations.
How scoring works
$33.73($1.12 per serving)
Walmart
$ 33.73
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Analysis

Biotin, B vitamins, vitamin C, and calcium support basic nutrient coverage relevant to hair and nails. The strongest named features are high-dose biotin and pantothenic acid rather than a balanced beauty formula.

A 970 mg Capilsana proprietary blend conceals its ingredients and individual amounts. That prevents judging whether the formula adds meaningful protein-building, botanical, or mineral support.

Preformed vitamin A is high, while vitamin D is very low. The product is difficult to assess safely without the complete blend and should not be casually stacked with another multivitamin.

Who is it for
  • Adults who have reviewed the full proprietary-blend label
  • Users specifically seeking high biotin
  • People not already taking a multivitamin
Best for
  • Hair and nail nutrient support
  • High-biotin supplementation
  • Users comfortable with proprietary blends

Pros

  • Substantial biotin amount
  • High pantothenic acid
  • Includes vitamin C and B vitamins
  • Two-capsule serving

Cons

  • Large proprietary blend hides doses
  • Preformed vitamin A is high
  • Vitamin D amount is very low
  • Premium cost for limited transparency

Warnings

  • High biotin can interfere with thyroid, cardiac, and hormone laboratory tests; stop it as instructed before testing
  • Preformed vitamin A should be avoided during pregnancy unless specifically approved
  • Do not stack with other vitamin A products without reviewing total intake
  • Check every proprietary-blend ingredient for allergies and medication interactions

Nutrient quality

52 Moderate impact

Biotin and pantothenic acid are substantial, but the hidden hair complex prevents a full dose assessment. Preformed vitamin A is high for a general beauty supplement, and biotin can interfere with laboratory testing.

Ingredient transparency

41 Lower impact

Vitamins have amounts, but the large Capilsana Complex is disclosed only as a total. The proprietary Capilsana Complex hides the identities and doses of key hair-support ingredients.

Customer satisfaction

51 Moderate impact

The mixed rating and small review base provide weak satisfaction evidence. No review text is available to assess recurring complaints or firsthand results.

Value for money

38 Lower impact

Conventional forms and a hidden core blend do not justify the cost well. The serving is relatively costly for a formula whose main complex cannot be evaluated.

Report analysis

Goals

Impact
High effect
B+ Goal FitC+ Strength of SupportB- CoverageC+ Formula Quality
Biotin · 2500 mcg

A concentrated biotin amount gives the hair formula strong relevance to nail growth and brittleness. Vitamin C and B vitamins add cofactors, while the large Capilsana blend may contain structural support that cannot be individually assessed.

The capsule format is practical, but the proprietary blend and unverified biotin isomer reduce transparency. Biotin can distort thyroid and cardiac troponin lab tests, so its use should be disclosed before testing.

Study evidence
Biotin Supportive 8 studies
Vitamin C Supportive 1 study
Impact
Moderate effect
B- Goal FitD+ Strength of SupportB- CoverageC- Formula Quality
Biotin · 2500 mcgVitamin D · 100 IUVitamin C · 100 mg

Biotin, vitamin C, and a broad nutrient blend give the formula clear hair-focused intent. Evidence for biotin is strongest in deficiency, while the large proprietary complex prevents assessment of most structural or botanical contributions.

The 2,500 mcg biotin amount is useful, but vitamin D and folate are low and preformed vitamin A is near the upper daily limit. Biotin may interfere with thyroid and cardiac troponin tests, and the high retinyl palmitate amount is unsuitable for some users during pregnancy.

Study evidence
Biotin Supportive 4 studies
Folate Mixed 15 studies
Vitamin A Disputed 13 studies
Vitamin C Mixed 5 studies
Vitamin D Disputed 34 studies

Ingredients

IngredientAmount per serving
Vitamin A (Retinyl Palmitate)
8150 IU
Vitamin C (Ascorbic Acid)
100 mg
Vitamin D (Cholecalciferol)
100 IU
Thiamine (Thiamine Hydrochloride)
5 mg
Riboflavin (Vitamin B2)
5 mg
Niacin (Vitamin B3)
5 mg
Vitamin B6 (Pyridoxine Hydrochloride)
5 mg
Folic Acid
200 mcg
Vitamin B12 (Cyanocobalamin)
20 mcg
Biotin
2500 mcg
Pantothenic Acid (D-Calcium Pantothenate)
100 mg
Calcium (Calcium Carbonate)
217 mg
Capilsana Complex Proprietary Blend
970 mg
Adults 18–50
Report overview
Biotin · 2500 mcg OverallScore78
B+ Active Ingredient Quality & BioavailabilityB+ Dose, Safety & Label TransparencyC Value

A mid-range biotin amount offers useful potency but does not reach the most concentrated target range. The capsule format is favorable, though the label does not verify d-biotin and a large proprietary blend limits disclosure. Neutral value recognizes the many companion nutrients, and biotin use should be disclosed before thyroid or cardiac troponin testing.

A- Active Ingredient Quality & BioavailabilityB Dose, Safety & Label TransparencyF Value

D-calcium pantothenate provides a stable and well-absorbed vitamin B5 form. The 100 mg serving supports general maintenance and metabolism. The active amount is costly when normalized to a therapeutic dose, while no controversial additive is shown, though complete excipient details are unavailable.

C+ Active Ingredient Quality & BioavailabilityB+ Dose, Safety & Label TransparencyF Value

Calcium carbonate is common but depends more on food and stomach acid for absorption. The 217 mg serving provides a useful amount but may require another daily dose for higher needs. Calcium can reduce absorption of levothyroxine and tetracycline or quinolone antibiotics, so doses should be separated.

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Sources

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

  1. 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 participantsHair Health Nail Health forBiotin
  2. 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 reviewHair Health forBiotin
  3. 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 reviewHair Health forBiotin
  4. Low serum biotinidase activity in children with valproic acid monotherapy.
    Schulpis KH; Karikas GA; Tjamouranis J; Regoutas S; Tsakiris S · Epilepsia · 2001
    Clinical trial125 participantsHair Health forBiotin
  5. Biotin for the treatment of nail disease: what is the evidence?
    Lipner SR; Scher RK · The Journal of dermatological treatment · 2018
    Narrative reviewNail Health forBiotin
  6. 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 participantsNail Health forBiotin
  7. Brittle nails: response to daily biotin supplementation.
    Hochman LG; Scher RK; Meyerson MS · Cutis · 1993
    Case series35 participantsNail Health forBiotin
  8. Nail Supplements: When, How, and Why?
    Zaraa I; Richert B · Skin appendage disorders · 2026
    Narrative reviewNail Health forBiotin
  9. Brittle nails.
    Iorizzo M; Pazzaglia M; M Piraccini B; Tullo S; Tosti A · Journal of cosmetic dermatology · 2009
    Narrative reviewNail Health forBiotin
  10. Predictive Model of Nail Consistency Using Scanning Electron Microscopy with Energy-Dispersive X-Ray.
    Mingorance Álvarez E; Martínez Quintana R; Pérez Pico AM; Mayordomo R · Biology · 2021
    Cross-sectional study57 participantsNail Health forCalcium
  11. Hair Loss After Metabolic and Bariatric Surgery: a Systematic Review and Meta-analysis.
    Zhang W; Fan M; Wang C; Mahawar K; Parmar C; Chen W; Yang W; Global Bariatric Research Collaborative · Obesity surgery · 2021
    Meta-analysis2,538 participants18 studies pooledHair Health forFolate
  12. Quantitative Analysis of Selected Circulating Hematological Biomarkers, Essential Minerals, Vitamins, and Thyroid Hormones in Females Affected by Hair Loss.
    Al-Fawaeir S; Al-Odat I · Diseases (Basel, Switzerland) · 2025
    Case-control study200 participantsHair Health forFolate
  13. Twelve weeks of protracted venous infusion of fluorouracil (5-FU) is as effective as 6 months of bolus 5-FU and folinic acid as adjuvant treatment in colorectal cancer.
    Saini A; Norman AR; Cunningham D; Chau I; Hill M; Tait D; Hickish T; Iveson T; Lofts F; Jodrell D; Ross PJ; Oates J · British journal of cancer · 2003
    Randomized trialHair Health forFolate
  14. Role of oxaliplatin combined with 5-fluorouracil and folinic acid in the first- and second-line treatment of advanced colorectal cancer.
    Jonker D; Rumble RB; Maroun J; Gastrointestinal Cancer Disease Site Groupof Cancer Care Ontario’s Program in Evidence-Based Care · Current oncology (Toronto, Ont.) · 2012
    Randomized trialHair Health forFolate
  15. Phase I-II study of vinorelbine in combination with 5-fluorouracil and folinic acid as first-line chemotherapy in metastatic breast cancer: a regimen with a low subjective toxic burden.
    Nolè F; de Braud F; Aapro M; Minchella I; De Pas TM; Zampino MG; Monti S; Andreoni G; Goldhirsch A · Annals of oncology : official journal of the European Society for Medical Oncology · 1997
    Randomized trialHair Health forFolate
  16. Topical tretinoin for hair growth promotion.
    Bazzano GS; Terezakis N; Galen W · Journal of the American Academy of Dermatology · 1986
    Non-randomized trial56 participantsHair Health forVitamin A
  17. A review of isotretinoin in the treatment of frontal fibrosing alopecia.
    Shahpar A; Nezhad NZ; Sahaf AS; Ahramiyanpour N · Journal of cosmetic dermatology · 2024
    Systematic review232 participants15 studies pooledHair Health forVitamin A
  18. Efficacy of Isotretinoin and Acitretin in Treatment of Frontal Fibrosing Alopecia: Retrospective Analysis of 54 Cases.
    Rakowska A; Gradzińska A; Olszewska M; Rudnicka L · Journal of drugs in dermatology : JDD · 2018
    Cohort study54 participantsHair Health forVitamin A
  19. Systemic Treatments for Lichen Planopilaris and Frontal Fibrosing Alopecia: A Retrospective Study of 315 Patients.
    Willaert M; Van Dongen T; Dikrama P; Nijsten T; Hijnen D; Waalboer-Spuij R · Acta dermato-venereologica · 2025
    Cohort study315 participantsHair Health forVitamin A
  20. Tretinoin enhances minoxidil response in androgenetic alopecia patients by upregulating follicular sulfotransferase enzymes.
    Sharma A; Goren A; Dhurat R; Agrawal S; Sinclair R; Trüeb RM; Vañó-Galván S; Chen G; Tan Y; Kovacevic M; Situm M; McCoy J · Dermatologic therapy · 2020
    Single-arm trialHair Health forVitamin A
  21. 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 reviewHair Health forVitamin C
  22. 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 participantsHair Health forVitamin C
  23. 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 studyHair Health forVitamin C
  24. 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 studyHair Health forVitamin C
  25. 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 reportHair Health forVitamin C
  26. Increased prevalence of vitamin D deficiency in patients with alopecia areata: a systematic review and meta-analysis.
    Lee S; Kim BJ; Lee CH; Lee WS · Journal of the European Academy of Dermatology and Venereology : JEADV · 2018
    Meta-analysis2,039 participants14 studies pooledHair Health forVitamin D
  27. Intralesional vitamin D3 in treatment of alopecia areata: A randomized controlled clinical trial.
    Rashad AF; Elgamal E; Fouda I · Journal of cosmetic dermatology · 2022
    Randomized trial60 participantsHair Health forVitamin D
  28. Vitamin D and its Analogs in Treatment of Mild to Moderate Alopecia Areata: Systematic Review and Meta-Analysis.
    Alsaati AA; Kaliyadan F; Alsaadoun D; Alzakry LM; Alzabadin RA; Hakami TH; Rubaian NFB · Indian dermatology online journal · 2025
    Meta-analysisHair Health forVitamin D
  29. Topical calcipotriol vs narrowband ultraviolet B in treatment of alopecia areata: a randomized-controlled trial.
    El Taieb MA; Hegazy EM; Ibrahim HM; Osman AB; Abualhamd M · Archives of dermatological research · 2020
    Randomized trial60 participantsHair Health forVitamin D
  30. Serum 25 hydroxyvitamin D in non-scarring alopecia: A systematic review and meta-analysis.
    Chen Y; Dong X; Wang Y; Li Y; Xiong L; Li L · Journal of cosmetic dermatology · 2024
    Meta-analysis10,670 participants23 studies pooledHair Health forVitamin D
  31. 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 participantsNail Health forBiotin
  32. Vitamins and minerals: their role in nail health and disease.
    Scheinfeld N; Dahdah MJ; Scher R · Journal of drugs in dermatology : JDD · 2007
    Narrative reviewNail Health forBiotin
  33. 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 participantsNail Health forVitamin C