OUR INGREDIENTS

Peptides

Signaling molecules that tell your skin to produce more collagen

Firms

Signals skin cells to increase collagen and elastin production.

Elasticity

Improves skin's ability to bounce back and resist sagging.

Gentle

Firming benefits without retinoid-level irritation.

What it is

Short chains of amino acids that function as messengers, communicating specific instructions to skin cells rather than acting as raw materials themselves.

How it works

Certain peptide sequences mimic fragments of collagen that appear when skin is naturally damaged. Fibroblasts recognize these fragments as a signal to ramp up collagen and elastin production — essentially triggering a repair response without an actual injury.

Macro photograph of glowing woven golden threads representing the Peptide Complex signaling structure in St.GABRIEL's The Serum P
1000s
of distinct peptide sequences exist in skincare research, each triggering a slightly different cellular response.

Why we chose it

Peptides offer collagen-boosting benefits without the irritation profile of retinoids, making The Serum P a gentler firming option — especially for those who can’t tolerate stronger actives.

Found in

FIRM (The Serum P)

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