The Most Powerful Copper Peptide Facial Serum
The Most Powerful Copper Peptide Facial Serum
Our Korean GHK-CU peptide formula has been developed to support collagen renewal and restore firmer, more resilient-looking skin.
✨ Helps Improve Firmness within 4–8 weeks
🧬 Supports natural collagen production
🛡️ Gently hydrates and supports the skin
🎯 Targets visible aging at the source
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The Most Powerful Copper Peptide Facial Serum
My skin has been looking so much more hydrated and fresh since I started using this. I love how lightweight the serum feels and it doesn't leave my face sticky.
I’ve tried so many serums, but this one has become a permanent part of my morning routine. My skin feels smoother and looks noticeably more refreshed.
I was mainly looking for something to help with dull-looking skin and hydration. This has been such a nice addition to my skincare routine. My skin has a much more hydrated glow.
How does it work
How does it work
Powered by GHK-Cu — the trending Korean-favored copper peptide, well-studied for supporting collagen renewal and restoring firmer, more resilient skin.
Hyaluronic Acid deeply hydrates and plumps the look of fine lines, giving skin a smoother, more radiant finish.
How do I use it
How do I use it
Directions
Each bottle contains 30ml of serum, with the dropper drawing approximately 1ml per use.
Step 1: Draw the Serum
Unscrew the bottle and draw a full dropper — about 3-4 drops per application.
Step 2: Apply to Clean Skin
Make sure your face is clean and dry. Gently apply to cheeks, forehead, and neck, distributing evenly for full coverage.
Step 3: Press It In
Gently press the serum into skin using your fingertips until fully absorbed.
For best results, use consistently — morning and night.
How long until I see results?
How long until I see results?
Most people notice improved hydration and smoother texture within the first 1-2 weeks of consistent use.
For firmer, more resilient-looking skin, visible changes typically take 4-8 weeks — since that’s how long it takes for the skin’s natural renewal cycle to show results.
Consistency matters most — using it once or twice daily, as directed, gives the formula the best chance to work.
Shipping & Returns
Shipping & Returns
Tracked shipping on all orders — processed within 24 business hours by our fulfillment team.
Delivery in 6–10 working days — due to current high order volume (varies by location).
Easy 30-day returns — just contact us and we'll handle everything.
Why Astera
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Sophia M.
★★★★★
“My skin has never looked this glowy.”“I started using the Astera serum every night and honestly noticed a difference within the first couple of weeks. My skin feels so much more hydrated and looks smoother and brighter. I love how lightweight it is too—it doesn’t feel sticky at all.”
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Olivia K.
★★★★★
“My skin feels noticeably firmer.”“I’ve tried so many different serums, but this is one I actually kept using. My skin feels softer, smoother, and more firm, especially around my cheeks and forehead. It has become a permanent part of my nighttime routine.”
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Emma R.
★★★★★
“I’m wearing less makeup and feeling more confident.”
I remember getting ready one morning and putting on more makeup than usual because I didn't like how uneven and dull my skin looked. I decided to simplify my routine and started using Astera every day. A few weeks later, I noticed I wasn't reaching for as much makeup. My skin just looked more fresh and awake, and that made such a difference in how I felt
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MADE FOR
Skin That's Starting to Lose Its Bounce
If you're noticing fine lines, less firmness, or skin that doesn't look as lifted as it used to — this serum was built for exactly that stage.
SIMPLE ROUTINE
Two Steps. Twice a Day.
Apply 2-3 drops to clean skin morning and night. Gently press into your face and neck.
WHY ASTERA
Formulated With What Actually Works
No filler ingredients, no gimmicks — just copper peptides and hyaluronic acid, backed by the science of what skin actually needs to look firmer and more hydrated.
FOUR INGREDIENTS. THAT'S THE WHOLE FORMULA.
No fragrance, no fillers, no unnecessary additives. A short label you can actually understand
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COPPER PEPTIDES
A copper peptide complex known for supporting the skin's natural renewal process and helping skin appear firmer over time.
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HYALURONIC ACID
A natural moisture-binding ingredient that draws hydration into the skin, helping it look plumper and more supple.
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VITAMIN E
An antioxidant that helps protect skin from environmental stress while soothing and nourishing.
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THE CLEAN BASE
No hidden ingredients, no vague labels — just what’s on the bottle.
There's a reason women are raving about us.
See what our customers are saying about their Luniqua journey
Sarah M., 34
Between back-to-back Zoom calls and staring at a screen all day, I started noticing something I couldn’t unsee — the constant squinting and screen glare were leaving fine lines around my eyes and forehead. I started applying Astera every night, and the difference is incredible. The copper peptide and hyaluronic acid combo has really helped firm up my skin, and those fine lines are fading fast. I also love that it’s completely non-greasy, so it soaks in fast and never feels heavy before bed.
Jessica L., 29
Astera has been a total game changer for my skin. I’m 28, and my face had gotten so dry that I was starting to notice more fine lines and my skin just looked tired and dull. After using this serum, I can honestly tell a huge difference. My skin feels so much softer, smoother, and deeply hydrated. It goes on nicely, absorbs quickly, and has really helped bring my face back to life. I look and feel more refreshed, and my skin no longer feels dry and tight all the time. I truly could not recommend this copper peptide serum more.
Amanda K., 42
After using this serum for a few days, I have to say I really enjoy it. It hydrates my skin and makes it plump. It moisturizes my face nicely, and it’s not greasy at all — which is great. Highly recommend this serum. For the price, it’s great.
Emily R., 38
I'm finally getting serious about my skin, but every active I tried before this left my skin dry, tight, and irritated. Astera changed that completely. What surprised me most is how hydrating it is — this isn’t just a treatment serum, it’s genuinely nourishing. I apply it every night (the spa headband has become part of the routine) and wake up to skin that looks plump and dewy, almost like it’s glowing from within. No irritation, no adjustment period — it just works. If you’re chasing that youthful bounce without dealing with harsh side effects, this copper peptide serum is worth trying.
Rachel T., 31
I’ve been trying to cut back on harsh chemicals in my routine, and Astera has honestly exceeded my expectations. The moisture it gives my skin is noticeable right away — no greasy residue, just a soft, healthy-looking glow. For the price, the quality really stands out. My skin feels incredibly soft, and this has quickly become exactly what my routine was missing :)