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Biotin (Vitamin B7) 2,500 mcg — Rapid Melting Lozenges — Hair, Skin & Nail Support*
LifeSource Vitamins Biotin 2,500 mcg provides vitamin B7 in a pleasant, rapid-melting lozenge to support healthy keratin structure for nails, hair, and skin, and to assist normal macronutrient metabolism as a coenzyme for key carboxylases.* Produced in GMP facilities and 3rd-party lab tested for identity, potency, and purity.*
Research Promise: At LifeSource Vitamins, our commitment is rooted in research and results. Every benefit below is supported by human clinical studies indexed in the National Institutes of Health (NIH) via PubMed, with full texts available in the National Library of Medicine (NLM) PubMed Central (PMC) when available. In addition, we reference reviews from 39 leading health organizations and insights from 20 top global universities to ensure our guidance aligns with credible science.*
• Nail brittleness support* — Clinical observations reported improvement in brittle nail symptoms with daily biotin; classic reports noted increased nail plate thickness. (NIH/PubMed — Hochman L, 1993)
• Nail microstructure (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, pyruvate, propionyl-CoA, and methylcrotonyl-CoA carboxylases; human biotin biology overview. (NIH/PMC — Zempleni J, 2009)
• Hair outcomes — mainly in deficiency/special conditions* — Reviews note improvement reports largely in deficiency or underlying disorders; robust trials in healthy adults are limited. (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’s participation in carboxylase-dependent pathways and transcriptional regulation. (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 cases where 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. (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 Vegan Rapid Melting Lozenge
• Servings Per Container — 60
• Biotin — 2,500 mcg — 8,333% DV*
• Other Ingredients — Mannitol; Cellulose; Modified Cellulose Gum; Citric Acid; Organic Luo Han Guo (Monk Fruit) Extract; Calcium Stearate (vegetable source); Natural Flavor
• Form — Vegetarian Lozenges (rapid melting)
• Free From — No artificial colors, flavors or preservatives; Gluten-Free; Non-GMO*
• 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) 2,500 mcg rapid-melting lozenges — supports nails, hair & skin in those with increased needs; essential coenzyme for metabolism. Gluten-Free, Non-GMO, 3rd-party tested. NIH/PubMed-anchored references!*

*Disclaimer: 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. Always consult your physician before taking any supplements. Individual results may vary. This information is not intended to replace your healthcare provider but to support and enhance that relationship. You are encouraged to do your own research and take an active role in your health decisions. If you are pregnant, nursing, taking medications, or have any medical conditions, consult your healthcare professional before using any supplements discussed on this site.