Description
Serum goes on before the light, not after.
The Copper Peptide Prep Serum is a lightweight, water-based serum you apply to clean skin right before a red light session. It absorbs in under a minute and leaves no film between the LEDs and your face, unlike the night creams, facial oils, and mineral sunscreens that are built to sit on the surface. The formula is Copper Tripeptide-1, the copper peptide also known as GHK-Cu, carried in a hydrating base of Sodium Hyaluronate and Glycerin. Nine ingredients total. No fragrance, no oils, no parabens. 30 mL, in a glass dropper bottle. $39, with a 60-day money-back guarantee.
How it works in 3 steps
- Prep. Wash your face, pat dry, then press three or four drops into clean skin on face and neck. Give it sixty seconds to absorb.
- Light. Put your LED face mask on and rest for 10 to 15 minutes.
- Finish. Follow with your usual hydrating mist or moisturizer.
Why a thin serum instead of your night cream?
Because of what is left sitting on your skin when the mask goes on. Night creams, balms, facial oils, and mineral sunscreens are built to stay on the surface and hold moisture in. That is exactly what you want at bedtime, and exactly what you do not want under an LED mask. This serum is built for the opposite job. Water is the first ingredient, there are no oils in it at all, and it absorbs and leaves clean, hydrated skin behind.
| Copper Peptide Serum | Night cream or facial oil | Bare skin | |
|---|---|---|---|
| Absorbs before the mask goes on | Yes, about 60 seconds | No, designed to stay on the surface | Nothing to absorb |
| Leaves a film under the mask | No, oil free | Yes, and it transfers onto the mask | No |
| Adds hydration first | Yes, Sodium Hyaluronate and Glycerin | Yes | No |
| Formulated for pre-light use | Yes | No, formulated for overnight wear | Not applicable |
| Active skincare ingredient | Copper Tripeptide-1 (GHK-Cu) | Varies widely | None |
What is copper peptide, and why is the serum blue?
Copper Tripeptide-1, written in most research as GHK-Cu, is a small chain of three amino acids bound to copper. It has been used in skincare for decades and it is the reason this bottle is pale blue. That colour is not a dye. Copper complexes are blue in solution, so the tint is the ingredient showing itself. In a cosmetic formula it is included to support a hydrated, firmer-looking complexion. The evidence on topical copper peptides is promising but still limited, which is why we describe it in terms of how skin looks and feels rather than promising more than that.
It is carried in a deliberately short hydrating base. Sodium Hyaluronate is the salt form of hyaluronic acid, small enough to sit well in a light serum, and Glycerin is the humectant that has anchored good moisturizers for a century. Both are studied humectants that attract and hold moisture, leaving skin feeling softer, smoother, and more supple. That is the whole job of a prep step.
The full list is nine ingredients. There is no fragrance in it, no essential oils, no alcohol, no parabens, and no silicones. That is not marketing restraint, it is what a serum has to look like if it is going under a mask.
Who is this serum for?
It was built for anyone already running red light on their face with any LED device. It is also for the person who wants a simple, uncrowded serum: one recognizable active, a hydrating base, and nothing else competing for room on the label. It is a cosmetic product for adult skin. If you are pregnant, nursing, or under a dermatologist’s care, check with them before adding any new active to your routine.
Frequently asked questions
Do you put serum on before or after red light therapy?
Before. Apply the serum to clean, dry skin and give it about sixty seconds to absorb, then run your light session. The reason is what gets left on the surface: night creams, facial oils, and mineral sunscreens are formulated to sit on top of the skin, and they transfer onto the mask. This serum is water based and oil free, so it absorbs and leaves clean, hydrated skin behind.
Can I just use my own serum before the mask instead?
You can, as long as it is lightweight and water based rather than an oil, balm, or occlusive cream. What you want to avoid under an LED mask is a product designed to stay on the surface. This one was formulated for that specific step: nine ingredients, no oils, and it absorbs in about a minute.
What is copper peptide?
Copper Tripeptide-1, written in most research as GHK-Cu, is a small chain of three amino acids bound to copper. It has been used in skincare for decades. In a cosmetic formula it is included to support a hydrated, firmer-looking complexion. It is the active ingredient in this serum. The evidence on topical copper peptides is promising but still limited, which is why we describe it in terms of how skin looks and feels.
Why is the serum blue?
Because of the copper, not a dye. Copper complexes are blue in solution, so the pale blue tint you see through the glass is the Copper Tripeptide-1 showing itself. There is no added colourant in the formula.
What is in it?
Nine ingredients: Purified Water (Aqua), Glycerin, Copper Tripeptide-1, Hydroxyethylcellulose, Sodium Hyaluronate, 1,2-Hexanediol, Caprylyl Glycol, Ethylhexylglycerin, and Phenoxyethanol. Copper Tripeptide-1 is the active. Sodium Hyaluronate and Glycerin are humectants that attract and hold moisture, leaving skin feeling softer, smoother, and more supple. It is fragrance free, oil free, paraben free, alcohol free, and silicone free.
How long does one bottle last?
The bottle is 30 mL, or 1 fl oz. At the recommended three or four drops once per day on face and neck, that runs about 6 to 8 weeks.
Can I use it without a red light device?
Yes. It works as a straightforward copper peptide serum on clean skin whether or not a light session follows. Apply it the same way and follow with your usual moisturizer.
Is it safe for sensitive skin?
It is a cosmetic product formulated for adult skin, with no fragrance and no essential oils, which are the two most common triggers in a serum. As with any new active, patch test on your inner forearm before your first full use and discontinue if irritation occurs. If you are pregnant, nursing, or under a dermatologist’s care, check with them before adding a new product to your routine.
How do I apply it?
On clean, dry skin, press three or four drops into your face and neck and let it absorb for about a minute before the mask goes on. Once daily is plenty. On a non-light day, apply it the same way and follow with your usual moisturizer.
Is this serum a treatment for a medical skin condition?
No. It is a cosmetic facial serum formulated to hydrate and improve the look and feel of skin. It is not intended to diagnose, treat, cure, or prevent any disease. If you are dealing with a diagnosed skin condition, that is a conversation for your dermatologist, not a serum.
Why does it contain phenoxyethanol and the other preservatives?
Because it is water based. 1,2-Hexanediol, Caprylyl Glycol, Ethylhexylglycerin, and Phenoxyethanol keep the formula stable and protected through its intended use. Any serum with water in it needs a preservative system, and a short, well-chosen one is better than none. Hydroxyethylcellulose, the other supporting ingredient, is what gives the serum its lightweight gel texture and helps it spread evenly.
What is the return policy?
A 60-day money-back guarantee. Use it daily for up to two months, and if it has not earned a place in your routine, contact us for a full refund.
Specifications
- Size: 30 mL / 1 fl oz
- On the bottle: the label reads Copper Peptide Facial Serum
- Format: glass dropper bottle
- Supply: about 6 to 8 weeks at one daily use on face and neck
- Key active: Copper Tripeptide-1 (GHK-Cu)
- Base: water based, oil free, non-occlusive
- Full ingredient list (INCI): Purified Water (Aqua), Glycerin, Copper Tripeptide-1, Hydroxyethylcellulose, Sodium Hyaluronate, 1,2-Hexanediol, Caprylyl Glycol, Ethylhexylglycerin, Phenoxyethanol.
- Supporting ingredients: Hydroxyethylcellulose gives the lightweight gel texture; 1,2-Hexanediol, Caprylyl Glycol, Ethylhexylglycerin, and Phenoxyethanol keep a water-based formula stable and protected
- Free from: fragrance, oils, parabens, alcohol, silicones
Try it for 60 days, on us
Run it daily for two full months. If it has not earned a place on your counter, contact us for a full refund. That is longer than one bottle lasts, which is the point.
Copper Peptide Prep Serum. 30 mL. $39. For external use only. Adult use only. Avoid direct contact with the eyes. Discontinue use if irritation occurs. Keep out of reach of children.
The research behind these ingredients
Published research on the ingredient categories in this formula, provided for education. These are studies on the ingredients in general, not studies of this product, and they are not claims about what this serum will do for you.
- Fluhr JW, et al. Glycerol and the skin: holistic approach to its origin and functions. British Journal of Dermatology, 2008. PubMed 18510666
- Lodén M, et al. The influence of a cream containing 20% glycerin and its vehicle on skin barrier properties. International Journal of Cosmetic Science, 2001. PubMed 18498456
- Bravo B, et al. Benefits of topical hyaluronic acid for skin quality and signs of skin aging: from literature review to clinical evidence. Dermatologic Therapy, 2022. PMC10078143
- Miller TR, et al. Effects of topical copper tripeptide complex on CO2 laser-resurfaced skin. Archives of Facial Plastic Surgery, 2006. PubMed 16847171
Evidence for topical copper peptides is promising but still limited, which is why every statement on this page stays with how skin looks and feels.
A cosmetic skincare product. Not a medical device. This product is not intended to diagnose, treat, cure, or prevent any disease.
