Supports healthy hair, skin, and nails.
Effective Dose
30-100 mcg daily
Onset
2-4 weeks
Cost
Budget
Cycle
Not necessary; biotin can be taken continuously.
7 things you need to know
What it does
Supports healthy hair, skin, and nails.
Worth it?
7.5/10. Biotin is effective for individuals deficient in the vitamin, improving hair, skin, and nail health. However, benefits are limited for those with sufficient biotin levels.
How much to take
30-100 mcg daily
Price
Cheap (under $15/month)
How fast it works
Takes 2 to 4 weeks to notice
Safety
Check if: may interfere with certain lab tests (thyroid)., rare allergic reactions possible.
What people say
Users may experience a sense of improved hair strength and skin radiance over time, if deficient.
Biotin was first isolated from egg yolk in 1935.
"Users may experience a sense of improved hair strength and skin radiance over time, if deficient."
Research backing for this ingredient
Some evidence, more research needed
18+
Yes
Strong agreement among researchers
Treats hair loss and skin issues caused by deficiency
Clinical Case Series & Standard of Care
Improves brittle nail thickness and reduces splitting
3 Small Clinical Trials (e.g., n=45, n=22)
Promotes hair growth in healthy, non-deficient individuals
Systematic Review (finding lack of RCTs)
"Strong evidence supports biotin's role in treating deficiencies and improving hair, skin, and nail health in deficient individuals. Research on benefits for those with adequate biotin levels is less conclusive."
Biotin helps the body convert food into energy and plays a role in maintaining healthy hair, skin, and nails. Supplementation is most effective for those with a deficiency.
Products below minimum dose are likely ineffective
When
Any time
How
30-100 mcg daily
Food
Can be taken with or without food.
Noticeable improvements in hair, skin, and nails typically take several weeks to manifest.
Not necessary; biotin can be taken continuously.
Check for specific interactions.
Vitamin B7 (Biotin) is categorized as a vitamin.
Scientific consensus score: 8/10.
Evidence quality: MODERATE.
Add Vitamin B7 (Biotin) to your stack analyzer or compare it with other ingredients.
Not medical advice. Always consult a healthcare provider.