Biotin (Vitamin B7)
Quick answer: Biotin (Vitamin B7) is a hair & nails ingredient. Co-factor in keratin synthesis, supports hair strength, growth and nail resilience. Take daily with breakfast. Visible changes typically appear after 12 weeks of use.
- Role
- Hair & nails
- Origin
- Not a harvested plant but a synthesised vitamin, made in European pharmaceutical facilities and identical in structure to the biotin found in egg yolk, liver, nuts and oats.
- Form
- 5,000 mcg per capsule
- Evidence
- Strong, Strong where biotin is genuinely low, where correcting the deficiency clearly restores hair and nail quality. In people who are not deficient the supporting studies are small and uncontrolled, so expectations should be modest.
- Citations
- 3 peer-reviewed references
Worth knowing
High-dose biotin can skew laboratory immunoassays, including thyroid and cardiac troponin tests, which can produce a misleading result. Mention it to a doctor before blood work, and pausing for a few days beforehand is common practice.
Origin
Not a harvested plant but a synthesised vitamin, made in European pharmaceutical facilities and identical in structure to the biotin found in egg yolk, liver, nuts and oats.
Sourcing
Pharmaceutical-grade biotin produced in a GMP-certified facility in Switzerland. Because there is no farm or village behind this one, what we ask for instead is the paperwork: identity and purity assay, residual solvent screening, heavy metals and batch traceability. We would rather say plainly that this is a manufactured vitamin than dress it in a story it does not have.
How it works
Biotin acts as a cofactor for carboxylase enzymes involved in fatty-acid and amino-acid metabolism, both essential to keratin formation in hair and nails. Worth being honest about the evidence: the clearest benefits appear where biotin is genuinely low. In people who are not deficient, the research supporting dramatic hair or nail change is thin. High doses can also skew certain laboratory blood tests, including thyroid and cardiac markers, so it is worth mentioning to a doctor before blood work.
How to take it
Take daily with breakfast. Visible changes typically appear after 12 weeks of use.
Form & standardisation
5,000 mcg per capsule
Research
- Patel et al. 2017 · Skin Appendage Disorders, Review of 18 reported cases concluded biotin supplementation is most effective when underlying deficiency is present.
- Lipner & Scher 2018 · J. Am. Academy of Dermatology, Assessment of biotin for brittle nails found supporting studies were small and uncontrolled, so the effect in healthy people remains unproven.
- Li et al. 2017 · Clinical Chemistry, Documented that high-dose biotin can interfere with immunoassay results, including thyroid and troponin tests.
Frequently asked questions
What is Biotin (Vitamin B7)?
Biotin (Vitamin B7) is a hair & nails ingredient. Co-factor in keratin synthesis, supports hair strength, growth and nail resilience.
How does Biotin (Vitamin B7) work?
Biotin acts as a cofactor for carboxylase enzymes involved in fatty-acid and amino-acid metabolism, both essential to keratin formation in hair and nails. Worth being honest about the evidence: the clearest benefits appear where biotin is genuinely low. In people who are not deficient, the research supporting dramatic hair or nail change is thin. High doses can also skew certain laboratory blood tests, including thyroid and cardiac markers, so it is worth mentioning to a doctor before blood work.
How should I take Biotin (Vitamin B7)?
Take daily with breakfast. Visible changes typically appear after 12 weeks of use.
Where is Clekina's Biotin (Vitamin B7) sourced?
Pharmaceutical-grade biotin produced in a GMP-certified facility in Switzerland. Because there is no farm or village behind this one, what we ask for instead is the paperwork: identity and purity assay, residual solvent screening, heavy metals and batch traceability. We would rather say plainly that this is a manufactured vitamin than dress it in a story it does not have.