Try: Paula's Choice Peptide Booster, $52

Collagen is a protein that's vital to keeping your skin's texture firm. And you know what helps boost collagen production? Peptides are the building blocks of proteins like collagen, so a booster like this is a great pick for firming your complexion.

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Try: Blossom Jeju Pink Camellia Blooming Vitamin Radiance Booster, $50

This adorable K-beauty booster is packed with Vitamin B3 (aka niacinamide), which is an ingredient that's known for its skin-brightening (and texture-smoothing) properties.

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Try: Dermalogica Barrier Defense Booster, $75

A weakened skin barrier leads to increased sensitivity and inflammation — which is why you want to make sure it stays strong. This potent blend of oils is so nourishing and soothing — and great for keeping your skin barrier healthy.

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