Use a makeup primer with antioxidants and SPF, choose foundations with hydrating ingredients, and double cleanse at night to ensure all products are removed without stripping the skin.
A broad-spectrum sunscreen with SPF 30 or higher, applied daily. This protects the collagen and elastin from UV damage, which is the leading cause of fine lines and deep furrows.
For most people, it's best to start using retinol 1-2 times per week, especially if you have sensitive skin. As your skin tolerates it, you can gradually increase the frequency up to every night or every other night.
Glycolic acid, an AHA derived from sugar cane, has a small molecular size that allows it to penetrate deeply. It effectively exfoliates dead surface cells, promotes renewal, and improves skin texture and radiance.