Joint and Skin Health
Supplements for joints, bones, skin and hair, spanning single-ingredient reviews (collagen, glucosamine chondroitin, vitamin E) and the comparison guides that sit alongside them — joint and bone health, skin health, hair growth, and the collagen-versus-vitamin-C question that comes up often enough to deserve its own guide.
Structural supplements like these tend to need longer trial periods than stimulant or mood-focused ones — collagen and glucosamine in particular are generally given eight to twelve weeks before judging whether they're doing anything, which each review covers in more detail.
