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The 7 peptides in DOSE, and what each one does

One serum, seven peptides, each with a job. Here's the full ingredient breakdown.

6 min read · Updated September 27, 2026
Key takeaways
  • Peptides are short chains of amino acids that act as messengers in skincare.
  • Different peptides target different concerns, so a complex covers more ground than one alone.
  • DOSE combines 2% GHK-Cu with six supporting peptides and hydrolyzed collagen.

What are peptides?

Peptides are short chains of amino acids, the building blocks of proteins like collagen. In skincare, specific peptides are chosen because they help skin look firmer, smoother or calmer. Because each one has a different focus, combining several gives a more complete result.

The DOSE peptide complex

IngredientFocusWhat it does
GHK-Cu (copper peptide), 2%RenewSupports the look of firmer, smoother, renewed skin and a resilient barrier
Acetyl Hexapeptide-8SmoothSoftens the look of expression lines on the forehead and around the eyes
Dipeptide Diaminobutyroyl Benzylamide DiacetateRelaxHelps smooth the look of lines that form with facial movement
Palmitoyl Tripeptide-5FirmSupports the look of firm, plump skin
Palmitoyl Tetrapeptide-7CalmHelps calm the look of redness and supports skin's structure
Acetyl Octapeptide-3TargetTargets the look of deeper expression lines
Hydrolyzed CollagenHydrateInstant hydration for a plumper, dewier look

Why a complex beats a single peptide

Lines around the eyes and forehead come from movement; loss of firmness comes from changes in skin structure; dullness comes from slower renewal. No single peptide covers all of that. Pairing GHK-Cu with expression-line peptides and firming peptides means one step does the work of several serums.

What's not in it

DOSE is fragrance-free, paraben-free, sulfate-free, silicone-free, vegan and non-comedogenic. The blue colour comes from the copper in GHK-Cu, not a dye.

FAQ

What's in DOSE?

A 7-peptide complex: 2% GHK-Cu, Acetyl Hexapeptide-8, Dipeptide Diaminobutyroyl Benzylamide Diacetate, Palmitoyl Tripeptide-5, Palmitoyl Tetrapeptide-7, Acetyl Octapeptide-3 and Hydrolyzed Collagen.

Is a multi-peptide serum better than a single peptide?

Different peptides target different concerns, so a well-formulated complex covers more ground in one step.

Is DOSE fragrance-free?

Yes. DOSE contains no added fragrance, parabens, sulfates or silicones, and it's vegan.

This article is for general information only and isn't medical advice. DOSE is a cosmetic product and is not intended to diagnose, treat, cure or prevent any disease. Individual results vary.