Droopy skin is a scary thought, isn’t it? Right now, your skin feels firm and strong because of collagen, a fibrous protein that helps support your skin and other tissues. But once you lose that collagen, your skin will start to sag … which can actually begin in your mid 20’s.

This is where cell-helper ingredients like peptides come in, says Begoun.

Here’s how it works: Peptides actually trigger the production of collagen in our skin. So by applying peptides on your skin, you trick it into thinking it needs to produce more collagen. Voila! Do this and your skin will remain firm for a longer period of time.

Another tip? When looking for products with peptides in them, try mixing two different beauty product types together, like a serum and a moisturizer. “Combining different products into your skin care regimen will produce better results than if you used them individually,” says Bell. Who knew?

Products to try:

Olay Regenerist Night Recovery Moisturizing Treatment, $21.49

Philosophy When Hope is Not Enough Firming and Lifting Serum, $38

Boots No7 Protect & Perfect Beauty Serum, $19.99