The science
Why copper peptide
One well-known active, a short supporting cast, and nothing added for show.
Copper Tripeptide-1
- INCI name
- Copper Tripeptide-1
- Also known as
- GHK-Cu
- Role
- Skin conditioning
- Color
- Natural blue
Copper Tripeptide-1 is a small peptide made of three amino acids paired with copper. It's a skin-conditioning ingredient, and the reason the serum has its natural blue color.
Used once a day, morning or evening, skin looks firmer and smoother, with a reduced appearance of fine lines and a more even, radiant-looking finish.
The full formula
Every ingredient, in label order, and what it's there for. Nothing else goes in the bottle.
- Aqua (Water)
- The base that carries everything else.
- Glycerin
- Plant-derived. Draws in water so skin feels soft and hydrated.
- Propanediol
- Adds hydration and keeps the texture light and fast-absorbing.
- Copper Tripeptide-1
- The key active. Helps skin look firmer and smoother.
- Sodium Hyaluronate
- A form of hyaluronic acid. Helps skin look plumper and more hydrated, and gives the serum its silky slip and light gel texture.
Using it well
- Apply 3–4 drops to clean, dry skin.
- Press gently into face and neck, avoiding the eye area.
- Follow with your moisturizer.
Don't apply at the same time as strong AHAs/BHAs or L-ascorbic acid (vitamin C).
Use them at different times of day instead, e.g. vitamin C in the morning and this serum in the evening.