Biotin 5,000 mcg - 60 Veg Caps - 5 mg - Vitamin B7

Biotin (Vitamin B7) 5,000 mcg — Hair, Skin & Nail Support*

LifeSource Vitamins Biotin 5,000 mcg provides high-potency vitamin B7 to support healthy keratin infrastructure for nails, hair, and skin, and to assist normal macronutrient metabolism as a coenzyme for carboxylases.* Produced in GMP facilities and 3rd-party lab tested for identity, potency, and purity.*

• Nail brittleness support* — Observational clinical work reported improvement in brittle nail symptoms with daily biotin; classic reports noted increased nail plate thickness. (NIH/PubMed — Hochman L, 1993)

• Nail microstructure (historical clinical microscopy)* — Improvements in onychoschizia and nail ultrastructure after biotin supplementation. (NIH/PubMed — Colombo V, 1990)

• Essential coenzyme for energy metabolism* — Biotin functions as a coenzyme for acetyl-CoA carboxylase, pyruvate carboxylase, propionyl-CoA carboxylase, methylcrotonyl-CoA carboxylase; review of human biotin biology. (NIH/PMC — Zempleni J, 2009)

• Hair outcomes — evidence mainly in deficiency or special conditions* — Review found improvement reports largely in deficiency/underlying pathology; no robust trials in healthy adults. (NIH/PMC — Patel D, 2017; NIH/PMC — Almohanna H, 2018; NIH/PMC — Yelich A, 2024)

• Nail brittleness — early clinical series* — Additional small clinical report on brittle nails with biotin. (NIH/PubMed — Floersheim G, 1989)

• Gene regulation & metabolism context* — Biotin participation in carboxylase-dependent pathways and regulation of gene expression. (NIH/PubMed — Rodriguez-Melendez R, 2003)

• Biotin biology overview* — Comprehensive academic review of human biotin metabolism, biomarkers, and functions. (NIH/PMC — Zempleni J, 2009)

• Biotin deficiency & biotinidase deficiency* — Clinical features and management (relevant to when biotin shows clear benefit). (NIH/PubMed — Zempleni J, 2008)

• NIH ODS Fact Sheet (HP) — Evidence summary on biotin; notes nail data are from small, uncontrolled studies; outlines Adequate Intake and safety considerations. (NIH/ODS — 2022)

• Laboratory test interference (safety) — High-dose biotin can interfere with certain immunoassays (e.g., thyroid, troponin); FDA safety communication and clinical reviews. (FDA — 2019; NIH/PMC — Gifford J, 2018; NIH/PMC — Rosner I, 2019)

• Supports healthy keratin for nails*

• Helps maintain hair & skin in those with increased needs*

• Essential coenzyme for normal macronutrient metabolism*

3rd-party lab tested for identity, potency & purity

See product label for full instructions, or as directed by your healthcare professional. If you have upcoming lab tests, tell your provider you use biotin due to potential test interference.* Do not exceed recommended dose. If pregnant, nursing, taking medications, or have a medical condition, consult your physician.*

• Serving Size — 1 Veg Capsule
• Servings Per Container — 60
• Biotin — 5 mg (5,000 mcg) — 16,667% DV*
• Other Ingredients — Rice Flour; Hypromellose (cellulose capsule); Stearic Acid (vegetable source); Silicon Dioxide
• Form — Vegetarian Capsules
• Free From — Non-GMO; not manufactured with common allergens*
• Quality — Third-party tested for identity, potency & purity

*These statements have not been evaluated by the Food and Drug Administration. This product is not intended to diagnose, treat, cure, or prevent any disease.

Biotin (Vitamin B7) 5,000 mcg — supports nails, hair & skin in those with increased needs; essential coenzyme for metabolism. Non-GMO, 3rd-party tested. NIH/PubMed-anchored references!*