A peptide your skin already makes — just less of it with age
The peptide trend everyone's talking about — no needles required.
The peptide trend has officially gone mainstream — and so has the conversation around what actually works without needles. GHK-Cu (Copper Tripeptide-1) is one of the most extensively studied peptide actives in dermatology, shown in literature to visibly improve skin firmness, texture, and the appearance of fine lines. Asterwood's Copper Peptides Serum delivers it in a 6-ingredient formula — no fragrance, no silicones, no fillers. Just one of skincare's most research-backed actives, at a price that makes sense to try. The blue-green color? That's the GHK-Cu. It's real and it's active.*
30-Day Money-Back Guarantee — try it risk-free.
Why copper peptides?
Everyone's obsessed with peptides. This is the one worth starting with.
GHK-Cu (Copper Tripeptide-1) isn't new — it's been studied in dermatology for decades. What's new is how accessible it's become. Asterwood's Copper Peptides Serum is built around this one powerhouse active, paired with 1.50% Hyaluronic Acid and nothing else that doesn't need to be there. Six ingredients total. The natural blue-green color you'll see in the dropper? That's the copper peptide — visible proof that the active is present and working. Use it morning or night, layer with moisturizer, and let six weeks of consistency do what the research says it will.*
Your skin isn't broken
It just makes less of the peptide over time — the same way hydration and bounce naturally change with age.
50+ years of research
GHK-Cu is one of the most-studied peptides in skin science, researched for over half a century.
Put it back in
Asterwood gives you clinically-studied GHK-Cu at an active concentration — in a clean, 6-ingredient Hyaluronic Acid base. The blue-green color is the GHK-Cu being active.*
What it does for your skin
Looksmaxxing but make it skincare, not syringes.
If the skincare side of looksmaxxing has your attention, start here. GHK-Cu — Copper Tripeptide-1 — is one of the most studied actives in the peptide space and it's having a serious moment for a reason. It visibly supports skin firmness and elasticity, helps smooth texture, and works on fine lines with consistent use. Asterwood's formula puts it in a 6-ingredient serum — nothing unnecessary, no fragrance, no silicones. Apply a few drops, press into skin, layer your moisturizer. That's the whole protocol.*
Firmer-Looking Skin
Helps visibly improve the appearance of firmness and elasticity with consistent use — skin that looks more resilient and bounced-back.*
Refined Texture
Supports a visibly smoother, more even skin surface and softens the look of fine lines over time.*
Plump, Quenched Skin
1.50% Hyaluronic Acid — a natural polysaccharide that draws and holds moisture — for immediate, lasting hydration and a supple, plumped finish.
What to expect, week by week
Consistency is the active ingredient. Here's the typical arc.
You don't need a derm appointment to work GHK-Cu into your routine. Copper Tripeptide-1 is one of skincare's most-researched peptide actives — and Asterwood puts it in a serum you can use at home, every day, for a fraction of what a clinical treatment costs. Visible improvement in firmness and texture starting around weeks 3 to 4. Meaningful elasticity change by weeks 6 to 8. No downtime, no recovery, no appointment needed. Just a few drops, pressed into clean skin, every day.*
Skin feels hydrated, soft, and smooth.
Improved softness and a subtle, healthy radiance.
A more refined, even-looking skin surface.
Visibly improved firmness, elasticity, and softer-looking fine lines.*
Maximum visible benefits with continued daily use.
Individual results may vary.
Proven ingredients
Six ingredients. That's the whole list.
No fragrance, no silicones, no unnecessary additives. When the label is short, you can actually read it — and know exactly why every line is there.
GHK-CU 0.10%
Copper Tripeptide-1
The hero active. GHK is a tripeptide — three amino acids — that binds with copper to become GHK-Cu, the copper peptide your skin naturally contains. Studied for over 50 years and prized for supporting the look of firmer, smoother skin. Its natural blue-green hue is what gives the serum its color.*
Sodium Hyaluronate · 1.50%
Hyaluronic Acid
A natural polysaccharide that retains moisture in the body — it draws hydration into skin for a plumper, more supple appearance, and helps every active absorb better.
The Clean Base
Water · Pentylene Glycol · Phenylpropanol · Sodium Hydroxide
A minimalist carrier, a humectant, a gentle preservative, and a touch of pH balancer. No filler. Nothing that doesn't earn its place.
How to use
Two minutes, morning or night
Cleanse
Start with clean, dry skin so nothing competes with the active.
Apply 2–3 drops
Press and pat gently into face and neck until fully absorbed.
Lock it in
Follow with moisturizer. In the morning, finish with SPF.
Tips for use
- Use AM and/or PM, daily.
- Layers cleanly over Hyaluronic Acid and under moisturizer.
- Keep strong AHAs/BHAs and high-dose Vitamin C to a separate step.
- Patch test first on the neck, especially for sensitive or copper-sensitive skin. For external use only; avoid the eye area.
Why Choose Us
Comparison reflects ingredient counts and disclosures typical of multi-ingredient facial serums based on publicly available label data, as of May 2026. Individual products vary.
| Asterwood Copper Peptides | Typical multi-ingredient serum | |
|---|---|---|
| Ingredient count | 6 | 20–35+ |
| Added fragrance | None | Often |
| Silicones / fillers | None | Common |
| Hero active disclosed by % | GHK-Cu 0.10% · HA 1.50% | Rarely |
| Developed by chemists · third-party tested | Yes* | Varies |
What real reviewers say
The results speak for themselves
Great results, Stick with it!
I’ve been using this consistently for the past 3 months and it’s a game changer! Major reduction in fine lines and my skin looks great!
The most important daily for me.
I've been applying this every morning for almost 2-years now, the improvement is very noticeable after a few days.
Buy it!
Wow! This really hydrates the skin. A little goes a long way so it’s sure to last awhile. Will buy again!
Build your routine
It works even better in good company
Hyaluronic Acid
The brand's hydrating foundation. Lay it down first so copper peptides absorb on perfectly primed skin.
Copper Peptides Serum
Your firming treatment layer. The one you came for.
Hypochlorous Acid Facial Mist
A 3-ingredient mist to soothe and refresh — calming, comfortable prep for sensitive skin.
Before you buy
Questions, answered
GHK-Cu (Copper Tripeptide-1) is a small copper-bound peptide and one of the most extensively studied actives in dermatology. In skincare it's valued for supporting the look of firmer, smoother, more refined skin. Our serum uses it at 0.10%, paired with 1.50% Hyaluronic Acid.*
It does — GHK-Cu is a copper-bound peptide your body produces naturally, with the highest levels when you're young. Like hydration and bounce, your natural supply tends to taper with age. That's the thinking behind topping it back up topically with an active-level formula. The peptide has been studied for over 50 years.*
That color isn't a dye — it's the copper peptide itself. The natural blue-green hue is a built-in sign that the GHK-Cu in the bottle is present and active. We never add synthetic colorants.
Skin feels hydrated and smooth from day one. Most people notice improved softness within 1–2 weeks, a more refined surface around 3–4 weeks, and visibly improved firmness and softer-looking fine lines around 6–8 weeks of consistent daily use. Individual results may vary.*
Yes — it layers cleanly over Hyaluronic Acid and under moisturizer, morning or night. Keep strong exfoliating acids (AHA/BHA) and high-dose Vitamin C to a separate step or routine so nothing competes.
It's fragrance-free, silicone-free, and built on just six ingredients, which many people with sensitive skin appreciate. As with any new active, patch test on your neck first — especially if you have known copper sensitivity. For external use only; avoid the eye area.
No parabens, sulfates, phthalates, dyes, or synthetic fragrance. Vegan and never tested on animals. Developed by chemists, third-party tested, and made in the USA of domestic and globally sourced ingredients.*
Copper peptides are having a moment. Here's the version you can actually afford.
Copper peptides have been a staple in professional skincare for years — the kind of ingredient that used to cost a lot to access. Asterwood changed that. The Copper Peptides Serum delivers 0.10% GHK-Cu alongside 1.50% Hyaluronic Acid in a minimalist 6-ingredient formula that absorbs instantly and works on firmness, texture, and fine lines over time. No filler. No fragrance. No markup for unnecessary complexity. Just GHK-Cu, done right, at a price you can actually maintain long-term.*
Free shipping · Clean, third-party-tested formula · Cancel a subscription anytime
Always free of parabens, sulfates, fragrances, and dyes. Never tested on animals.
*Describes the cosmetic appearance benefits of this product. This product is intended to improve the look of skin and does not alter its structure or function. Individual results may vary. Made in the USA of domestic and globally sourced ingredients. Statements have not been evaluated to diagnose, treat, cure, or prevent any disease. For external use only; avoid direct contact with eyes; discontinue use if irritation occurs.
