Can I use Buffet + Copper Peptides with vitamin C?

Not in the same routine. Copper peptides and direct-form vitamin C (ascorbic acid) deactivate each other. Use at different times of day or on alternate days.

How does this compare to standalone Matrixyl 3000 or GHK-Cu serums?

Concentrations of each individual peptide are lower than in dedicated single-peptide serums. This is a trade-off: broader mechanism coverage in one bottle vs. higher per-peptide dose.

serum30ml

Buffet + Copper Peptides 1%

Name: Buffet + Copper Peptides 1%
Brand: The Ordinary
Price: 28 USD
Availability: InStock

The Ordinary

Buffet + Copper Peptides 1% is The Ordinary's 'loaded' peptide serum, combining five peptide technologies in a single water-based formula. The Copper Tripeptide-1 (GHK-Cu) component is listed at 1%, the equivalent of 0.05-0.1% free-base active. The Matrixyl 3000 and Argireline additions target wrinkle depth through distinct mechanisms (collagen signaling and muscle expression relaxation, respectively). Because copper peptides deactivate in the presence of direct vitamin C, this product should not be layered with ascorbic acid in the same routine — use on alternate days or AM/PM split.

Shop on The Ordinary$28 Buy on Sephora$32

Links to retailers are affiliate links. We may earn a commission on qualifying purchases at no extra cost to you.

Peptides in this product

GHK-Cu (Copper Tripeptide-1)

Collagen + elastin synthesis, antioxidant

Matrixyl 3000 (Palmitoyl Tripeptide-1 + Palmitoyl Tetrapeptide-7)

Wrinkle depth reduction

Argireline (Acetyl Hexapeptide-8)

Expression-line softening

Targets

Peptides for Anti-Aging Peptides for Skin & Glow

Key ingredients

Copper Tripeptide-1Palmitoyl Tripeptide-1Palmitoyl Tetrapeptide-7Acetyl Hexapeptide-8

How to use

Apply a few drops to clean, dry skin AM and/or PM before heavier creams. Do not use in the same routine as direct-acid vitamin C or retinol — alternate AM/PM or days. Store upright, away from light.