Founded in 1995 by Arthur C. Huntley, MD, Dermatology Online Journal (DOJ) is recognized as the first open-access, ...
For most skin types, 5 to 10% glycolic or lactic acids or 1 to 2% salicylic acid is a safe starting point. Sensitive skin may ...
From powders to pills, collagen supplements promise youthful skin and strong hair – but do they actually work?