Eyes, skin and hair
Hair, skin and nails blends
Also called: hair gummies, hair vitamins
Mixes of biotin, zinc, collagen and others.
- Why people take it
- Hair, skin, nails.
- What the evidence says
- Help only if you are deficient.
- How it is usually taken
- One serving a day; check biotin, vitamin A and selenium totals if you take other supplements.
- Be careful
- Biotin in them can upset blood tests.
- Medicines it can interact with
- Biotin interferes with blood tests; stop 2 to 3 days before testing.
Other eyes, skin and hair
Common questions
What is Hair, skin and nails blends?
Mixes of biotin, zinc, collagen and others.
Why do people take Hair, skin and nails blends?
Hair, skin, nails.
Does Hair, skin and nails blends work?
Help only if you are deficient.
How much Hair, skin and nails blends do people take?
One serving a day; check biotin, vitamin A and selenium totals if you take other supplements.
Is Hair, skin and nails blends safe?
Biotin in them can upset blood tests.
Does Hair, skin and nails blends interact with medicines?
Biotin interferes with blood tests; stop 2 to 3 days before testing.
Sources and further reading
Last reviewed 31 October 2026. Written by Satya Babu.
🔎 Search all supplements