✨ Best Hair, Skin & Nails Supplements

Saw palmetto is the most evidence-backed supplemental DHT modulator. Works by inhibiting 5-alpha reductase (the enzyme that converts testosterone to DHT). NOW Foods uses the clinically-studied 320 mg standardized extract — avoiding the multi-ingredient "DHT blocker" formulas that bury active doses in proprietary blends. Effects build over 3-6 months.

Iron deficiency and low ferritin are common hidden drivers of hair loss, particularly in women. Page editorial: "Iron deficiency, low ferritin, zinc deficiency... cause hair loss and respond to supplementation." Iron bisglycinate (Ferrochel®) is gentler on the GI than ferrous sulfate. Best taken only after bloodwork confirms deficiency.

Contains Verisol® bioactive collagen peptides — the only collagen form with clinical trial evidence specifically for hair thickness. A 16-week placebo-controlled trial in women aged 39-75 showed significant hair thickness improvement at 2.5 g/day. Distinct from generic "hair vitamins" — the Verisol® brand-specific evidence is what makes this editorially honest.

The #1 dermatologist-recommended hair growth supplement brand. The Women's formula targets root causes of thinning hair in women 18-44, including stress, lifestyle factors, and nutrient gaps. Contains a proprietary blend of 21 ingredients including saw palmetto, ashwagandha, marine collagen, and a clinically-studied biotin complex. Has multiple published clinical trials — more than most multi-ingredient hair formulas. Visible results typically take 3-6 months of consistent use.