Skin & Beauty
Evidence on skincare, cosmetic treatments, devices, and ingredients for skin health, appearance, and visible signs of aging.

Skin & Beauty
Topical Retinoids: Retinol vs Tretinoin
Prescription tretinoin has strong evidence for improving signs of sun-damaged skin, including fine wrinkles and uneven pigmentation. OTC retinol may help too, but its evidence is less extensive and products vary considerably.

Skin & Beauty
Topical Estrogen for Menopausal Skin
Estrogen face creams are gaining attention for menopausal skin aging. Small studies show promising effects on collagen and skin structure, but visible anti-aging benefits and long-term safety remain uncertain.

Skin & Beauty
Red-Light Therapy Face Masks
Red and near-infrared light can modestly improve some signs of facial photoaging, including wrinkles, but results depend heavily on the device and treatment parameters—and not every consumer mask has been clinically tested.

Skin & Beauty
Microneedling for Facial Rejuvenation
Microneedling can improve some signs of facial aging and skin texture, but the evidence base is smaller and less standardized than its popularity might suggest.