Search for the best vitamins for hair, skin and nails and you'll find a market full of big promises. This guide is more careful: it explains which nutrients genuinely carry an authorised role in the maintenance of normal hair, skin and nails, what the honest wording is, and how to choose a supplement that's built on real claims rather than hype.
A note on honesty up front: no supplement makes hair grow faster, thicker or fuller — those aren't authorised claims, and the evidence for them in well-nourished people is weak. What certain vitamins and minerals genuinely do — and are permitted to claim — is contribute to the maintenance of normal hair, skin and nails. That's the honest, evidence-based foundation for everything below.
The nutrients with a genuine role
Three nutrients stand out because each carries an authorised claim for hair, skin or nails: biotin, zinc and selenium. A fourth, vitamin C, supports the skin indirectly through normal collagen formation. These are the building blocks of a sensible beauty-nutrition routine — not because they transform you, but because they help your body maintain what's normal.
1. Biotin — the best-known one
Biotin (vitamin B7) contributes to the maintenance of normal hair and normal skin. It's the nutrient most associated with beauty supplements, and our High-Strength Biotin (10,000mcg) is the solo, high-dose option. A fair, important caveat: biotin's authorised role is maintenance of normal hair and skin — not growth or thickness. We cover the dosing question in how much biotin you actually need.
2. Zinc — the multitasking mineral
Zinc contributes to the maintenance of normal hair, skin and nails — covering all three in one mineral — and also to normal DNA and protein synthesis. It's one of the most relevant minerals for this category, which is why it sits in our combined Biotin, Zinc & Selenium formula.
3. Selenium — the one for hair and nails
Selenium contributes to the maintenance of normal hair and normal nails. It's the lesser-known member of the trio, but it rounds out the hair-and-nail side neatly — which is exactly why a combined biotin-zinc-selenium tablet makes sense for someone who wants all three bases covered in one.
Combo or solo? How to choose
This is the key decision, and it's genuinely simple:
- Want all three bases covered (hair, skin and nails) in one tablet? The combined Biotin, Zinc & Selenium is built for exactly that — the most complete single option.
- Specifically want a high-dose biotin, on its own? The solo High-Strength Biotin 10,000mcg is the focused choice. We compare the two approaches in biotin versus collagen for beauty.
What about collagen?
Collagen often comes up in the same breath as hair and nails — but it's worth being straight: collagen itself carries no authorised health claims in the UK. Where it's paired with vitamin C, the vitamin C carries the claim (normal collagen formation for normal skin). So collagen is a reasonable addition for skin specifically, but for hair and nails, biotin, zinc and selenium are where the authorised claims actually sit.
An honest checklist
- Look for biotin, zinc and/or selenium — the nutrients with authorised hair/skin/nail claims.
- Check the doses are declared — on the label, not hidden in a blend.
- Be sceptical of "grow" and "thicken" claims — the honest, authorised wording is "maintenance of normal". Anything stronger is a red flag, not a selling point.
- Quality — made in a GMP-certified facility, tested for purity.
- Give it time and be realistic — these support normal maintenance; they don't transform.
Where our range fits
For this category specifically: Biotin, Zinc & Selenium for all-three coverage in one tablet, or High-Strength Biotin 10,000mcg if you want biotin on its own. Both described by what's in them and the authorised roles those nutrients play — nothing more.
Food supplements should not be used as a substitute for a varied, balanced diet and a healthy lifestyle. If you are pregnant, breastfeeding, taking medication or managing a medical condition, speak to your GP or pharmacist before starting a new supplement. Signed, Dr. Miron, Founder of Pure Vitamins UK.
