Look for humectants (hyaluronic acid, glycerin) to attract moisture, and occlusives (petrolatum, dimethicone) to prevent moisture loss.
Typically not. Most teens don't need retinol unless prescribed by a dermatologist for severe acne. Focus instead on sunscreen and antioxidants for protection.
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.
Not directly, but they often share common causes. As skin loses collagen and elasticity with age or sun exposure, pores can appear larger while fine lines and wrinkles become more noticeable around them.