Astaxanthin4–12 mg · any
Protects skin from sun damage and helps it hold onto moisture.
Solid · 3 of 3 studies agreeResearch →
skin hair nails · symptom
Dry Skin
Skin that feels tight, rough or flaky.
Top proven supplements
Studied in people, at a dose you can actually buy.1Studied in people, at a dose you can actually buy.
Might help
Real research, but thin or split. Worth knowing, not worth counting on.1Real research, but thin or split. Worth knowing, not worth counting on.
Omega-31000–2000 mg · with_food
Gets built into skin cells, improving the barrier that holds moisture in.
Evidence · 1 study, positiveResearch →
Tested — didn’t work
Measured properly against placebo. Nothing found.2Measured properly against placebo. Nothing found.
Collagen2.5–10 g · any
The idea is that collagen fragments reach the skin and prompt it to make more of its own.
No benefit foundResearch →
Evening Primrose Oil240–480 mg · any
Meant to rebuild the skin barrier and supply an anti-inflammatory fat.
No benefit foundResearch →
No research yet
People take these for it. We haven’t found trials we would stand behind.4People take these for it. We haven’t found trials we would stand behind.
Glutathione250–500 mg · any
Meant to protect skin cells from damage and help them hold moisture.
No trials we can vouch forResearch →
Vitamin A2500–5000 IU · with_food
Skin needs vitamin A to renew itself properly and to keep its oil glands working.
No trials we can vouch forResearch →
Iodine150–250 mcg · any
Thyroid hormones set how fast skin renews itself, and iodine is what they are made from.
No trials we can vouch forResearch →
Vitamin E200–400 IU · with_food
An antioxidant that protects the fats in your skin cell walls from damage.
No trials we can vouch forResearch →