The sun is the number one cause. Ultraviolet (UV) radiation triggers melanin production (causing dark spots) and breaks down collagen and elastin (causing wrinkles). This process is called photoaging.
Yes. Proper hydration and nutrients are vital. Focus on foods high in omega-3 fatty acids (for hydration), vitamin C (for collagen synthesis), and antioxidants (to combat inflammation). Collagen peptides may also provide a supportive boost.
Start with a low concentration 2-3 times per week, gradually increasing as tolerated. Oily skin often handles retinol better than dry skin, but consistency is more important than frequency.
Yes, but choose gentle chemical exfoliants like lactic acid over physical scrubs. Lactic acid is a hydrating AHA that removes dead cells without disrupting the barrier. Limit exfoliation to once a week.