5 Science-Backed Nutrients for Stronger, Thicker Hair
Science says the five most important nutrients for hair are protein, iron, vitamin D, omega-3s, and zinc. Learn why each matters and the best food sources — no expensive supplements required.
Evidence-based guide to vitamin D benefits, deficiency, and supplementation for women.

Science says the five most important nutrients for hair are protein, iron, vitamin D, omega-3s, and zinc. Learn why each matters and the best food sources — no expensive supplements required.

Most multivitamins use low-quality, poorly absorbed ingredients. Learn how to spot a quality multivitamin with our simple checklist — third-party seals, active forms, and safe doses.

Looking for the best men’s multivitamin? Our 2026 buyer’s guide helps women find the right supplement for their partners, with science-backed picks, life-stage tips, and red flags to watch for.