3 Hero Ingredients That Actually Restore Collagen + Prevent Aging Skin

Some things are better treated before they even begin—aging skin included. Preventive skin care is naturally going to be easier than going back and softening preestablished fine lines and wrinkles.

Retinol is the classic healthy aging skin care product, but do you know why? "Retinol binds to retinoid receptors within skin cells," board-certified dermatologist Joshua Zeichner, M.D., once told mbg. This "activates genes that upregulate collagen production."

Studies back this claim, too: In one small human study1, retinol treatment stimulated collagen production in mature skin, thus decreasing the appearance of wrinkling. However, it is important to note that use of retinol can make the skin more susceptible to UV damage—so don't skimp on your daily SPF.

Collagen supplements have been particularly buzzy in recent years, and there's a pretty good reason why: There's significant research showcasing their all-around skin benefits.

The main benefit? Promoting your natural collagen and elastin production2. This is key for aging skin, as research shows your collagen levels begin to decline by 1% each year2, starting around your mid-20s.

If you're already on the retinol train, you may consider adding a chemical exfoliant to your skin care routine as well (just don't use them on the same night!). You'll want to use these products two to three times a week as tolerated, as research shows that regularly exfoliating your skin can further enhance collagen production.

What's more, studies have shown that six months of using topical glycolic acid stimulated a 27% increase in epidermal thickness3. This is exactly what you want for tighter, younger-looking skin.