Urea (especially for rough areas like knees), ceramides, peptides, and antioxidants like niacinamide are excellent for strengthening the skin barrier and improving firmness.
Look for humectants (hyaluronic acid, glycerin) to attract moisture, and occlusives (petrolatum, dimethicone) to prevent moisture loss.
Poor sleep increases stress hormones that break down collagen. Tweens need 9-12 hours of sleep nightly for overall health, including skin.
Look for products containing hydrating ingredients like hyaluronic acid and glycerin, as well as antioxidants like Vitamin C to combat environmental damage and support collagen.