This article reviews popular supplements that older adults, especially women, take to improve their hair, skin, and nails. While some supplements like nicotinamide show promise for sun-damaged skin, most lack strong evidence of benefit in healthy people. Important risks include biotin interfering with heart and thyroid tests, too much zinc causing copper deficiency, and excess vitamins A and E building up to toxic levels. Doctors should talk to older patients about these supplements and help them make informed decisions based on scientific evidence rather than marketing claims.