💇 Best supplements for hair growth, skin & nails
Nutrients commonly taken for hair growth, hair loss, skin and nails — such as biotin, collagen, iron and vitamin D (low iron and vitamin D are linked to hair shedding). Ranked by cost per dose, with NIH-sourced facts on every nutrient page. Not medical advice.
Prices checked Jul 22, 2026
No active deals for these nutrients right now — check the nutrient index.
Before you buy supplements for hair growth, skin & nails
- This page is a cost-per-dose value comparison, not medical advice. Dietary supplements are not FDA-approved to diagnose, treat, cure or prevent any disease.
- For most people a varied diet already supplies these nutrients — supplements mainly help when intake is low or a lab test confirms a deficiency.
- A higher price doesn’t mean a better result. If you’re pregnant, have a health condition, or take medication, talk to your clinician first — some supplements interact with medicines.
Other goals
References & sources
We link primary sources and paraphrase their findings — never copy their text, tables, or images. Cost-per-dose figures are our own first-party catalog data.