Supplements for hair, skin and nails
Biotin, zinc picolinate, the hair skin and nails formula, collagen peptides, vitamin C and biosilica, with the authorised claims and one honest line about iron.
How to choose a hair, skin and nails supplement
Thicker hair, clearer skin and stronger nails, from the nutrients they are built from. Biotin, zinc, collagen, vitamin C and silicon each play a part, and a ferritin test is worth doing first if hair loss comes with tiredness, because low iron is a common cause.
Why these
Biotin: Supports thicker hair and stronger nails. High strength, 8000 mcg, one capsule a day.
Zinc Picolinate Capsules: Supports clear skin and healthy hair and nails, in the well absorbed picolinate form.
Hair, Skin and Nails Formula: Biotin and zinc together in one daily capsule for hair, skin and nails.
Classic Collagen: Supports smoother, more elastic skin; the skin trials ran about 90 days. Hydrolysed peptides.
Vitamin C Ascorbic Acid Powder: Helps the body make collagen, the basis of firm skin. Pure vitamin C powder, flexible dose.
Biosilica: Supports strong hair and nails and firmer skin. Silicon in its absorbable form.
Read the evidence
How long does collagen take to work? · What your ferritin level means
If you take prescribed medicines, are pregnant or breastfeeding, or have a diagnosed condition, talk to your GP or pharmacist first. Not sure which fits? Ask Nutri365, the Nutri Tailor AI health expert, which checks for interactions and contraindications.
Common questions
Does biotin help hair growth?
Biotin contributes to the maintenance of normal hair, which is the authorised claim. There is no authorised claim for growing hair, and the trials behind that idea are in people who were deficient.
Why does this page mention iron?
Because hair loss with tiredness or heavy periods is often low iron, and a ferritin test settles it before any hair supplement.
How long does collagen take for skin?
About 90 days in the trials that measured skin outcomes.
Written by Nutri Tailor from the Health Reference Library. Last checked 6 September 2026. General information, not personal advice.