Biotin

Support healthy hair
‍Nature’s superfood for beauty—biotin is needed for healthy hair, skin, and nails. Backed by clinical case reports in selective settings. For best results, biotin works in synergy with a balanced diet and robust hair-scalp care routine.

Ingredient spotlight
Biotin (also known as vitamin B7) plays a supporting role in the body’s production of keratin, the structural protein found in hair, skin and nails. It acts as a co-factor for multiple carboxylase enzymes involved in amino acid, fat and carbohydrate metabolism. (Source)
Because hair, skin and nails are rich in keratin and dependent on amino acid synthesis and metabolic turnover, biotin is often included in beauty-support formulas targeting hair strength, nail resilience and skin vitality. (Source)

Clinical evidence & research

• A systematic review found that documented human cases of biotin supplementation (n = 18) showing hair or nail improvement were in individuals with underlying pathology (e.g., biotin deficiency, inherited enzyme defects) rather than healthy individuals. (Source)
• A clinical trial of a multi-nutrient supplement (including biotin) in healthy women noted improvements in hair thickness and wrinkle depth vs placebo. However, because the formulation included other nutrients, the effect cannot be attributed to biotin alone. (Source)

What this means for women’s beauty

• For women who may be experiencing hair thinning, brittle nails or skin changes stemming from nutritional insufficiency, hormonal shifts, or post-surgical states (e.g., rapid weight loss or malabsorption), biotin supplementation may support normal keratin production and structural integrity of hair and nails.
• In absence of a clear deficiency or underlying disruption, the large-scale evidence for biotin is modest.
• As part of a holistic beauty regimen—including optimal nutrition, stress management, hormonal balance and scalp health—biotin can be one piece of the puzzle, rather than a standalone treatment.

Quality & purity guarantee
Like all our ingredients, our biotin is third-party tested for consistent quality, purity, and identity. At Locklab, we ensure that each lot of biotin meets rigorous standards so you can trust it supports your beauty regimen with transparency and integrity.

Safety‍
The U.S. National Institutes of Health states: “Several studies have found no adverse effects of 10-50 mg/day biotin in adults”. However, very high levels of biotin can interfere with select laboratory tests, so let your lab tech know you are taking it.