What is GHK-Cu?
A copper peptide your skin already makes, and levels drop as you age. It’s been used in professional skincare for years to support firmer, smoother-looking skin. Our serums contain 1% (Glo Skin Serum) or 3% (Ultra).
Glo Skin Serum
1% GHK-Cu + 1% SNAP-8
Your daily step to smoother, firmer-looking skin, no needles
- Softens the look of fine lines and wrinkles
- Smoother, firmer-looking skin
- Deep hydration with hyaluronic acid
Free US shipping · 30-day money-back guarantee · Made in the USA
How soon will I see results?
Skin feels more hydrated from the first use. Consistency matters more than anything else.
Can I use it with Botox, retinol or vitamin C?
Yes, with one tip: use vitamin C in the morning and Cellora at night, or wait a few minutes between them. If you use retinol, alternate nights for the first two weeks.
Original or Ultra, which is right for me?
New to peptides or strong actives? Start with Glo Skin Serum. Once your skin is comfortable, usually after one bottle, step up to Ultra.
Cruelty Free
Hypoallergenic
Vegan
Gluten Free
Paraben Free
GMO Free
Fragrance Free
Dermatologist Tested
Free from sulfates, parabens, phthalates, synthetic fragrance, formaldehyde and dyes.
Don’t take our word for it. Real women, real results.
Illustrative images, not actual customer results.
Reviews
What customers say.
Your simple 4-step routine
1 Cleanse
2 Glo Skin Serum
3 Moisturise
4 SPF (AM)
Weekly Peptide mask
How to use Glo Skin Serum
How to use
The ritual.
01
Apply 5 to 6 drops to clean, dry skin, across the face, neck and décolletage.
02
Use twice daily, morning and night.
03
In the morning, follow with moisturizer and SPF.
Pro tip. A little goes a long way. Five to six drops is plenty to cover the face, neck and décolletage.
When to use it
Where the serum sits in a daily routine.
- 01
Cleanse
- 02
Apply Glo Skin Serum
- 03
Apply moisturiser
- 04
Finish with sunscreen in the morning
How it works
The science, simply
What is SNAP-8?
A cosmetic peptide that helps soften the look of expression lines, the ones that show when you smile, squint or frown. It works on the surface of the skin, no needles involved.
Why is the serum blue?
Copper peptides are naturally blue. The colour is a sign the GHK-Cu is in there.
Illustrative, not to scale.
GHK-Cu
Copper tripeptide
Small enough to pass the skin barrier. Works deeper down, where it supports firmer, smoother-looking skin.
SNAP-8
Acetyl octapeptide-3
Larger, so it stays near the surface. Works where expression lines form, and softens their look.
1% GHK-Cu
A concentrated copper peptide selected to support smoother, firmer-looking skin.
1% SNAP-8
A targeted peptide used to help soften the appearance of expression lines.
Hydration Support
Hyaluronic acid helps draw moisture to the skin for a softer, plumper-looking finish.
Start Here
The everyday starting point for customers new to Cellora peptide serums.
Key actives
The peptides behind smoother-looking skin.
A targeted combination of GHK-Cu, SNAP-8 and hyaluronic acid designed to support the look of smoother, firmer skin, soften the appearance of expression lines and deliver lasting hydration.
1% GHK-Cu
Copper Peptide Support
A copper peptide chosen to support the appearance of firmer, smoother and more even-looking skin, helping the complexion appear smoother, firmer and more resilient.
1% SNAP-8
Expression-Line Support
A targeted cosmetic peptide designed to reduce the appearance of expression-related lines by helping soften the repetitive facial tension that contributes to their visible formation.
Hyaluronic Acid
Deep Hydration and Plumpness
A moisture-binding ingredient that draws hydration into the skin, helping it appear softer, smoother and visibly plumper.
Cruelty-free · Hypoallergenic · Vegan · Gluten-free · Paraben-free · GMO-free · Fragrance-free.
Glo or Ultra? Choose your strength
New to peptides or strong actives? Start with Glo Skin Serum. Once your skin is comfortable, usually after one bottle, step up to Ultra.
Start here
Glo Skin Serum
1% GHK-Cu + 1% SNAP-8
Best for: Your first peptide serum
- Softens the look of fine lines and wrinkles
- Smoother, firmer-looking skin
- Deep hydration with hyaluronic acid
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Strongest formula
Glo Skin Serum Ultra
3% GHK-Cu + 3% SNAP-8
Best for: Deeper lines, or your next step after Glo Skin Serum
- 3x the GHK-Cu and SNAP-8 of Glo Skin Serum
- Targets forehead, frown and smile lines
- For skin already used to active skincare
Still not sure? Find your routine in 60 seconds
Original or Ultra?
Start with the Strength That Fits Your Routine.
Choose Original as your daily starting point. Move to Ultra when you are experienced with peptide skincare and want a higher-strength formula.
Choose Original if
- You are new to GHK-Cu or SNAP-8
- You are beginning a peptide routine
- You want the lower starting concentration
- You are still learning how your skin responds to the formula
Choose Ultra if
- You have already used the Original comfortably
- You are experienced with peptide skincare
- You want three times the concentration of each peptide
- You are ready for Cellora’s most intensive formula
| Glo Skin Serum | Glo Skin Serum Ultra | |
|---|---|---|
| GHK-Cu | 1% | 3% |
| SNAP-8 | 1% | 3% |
| Total peptide concentration | 2% | 6% |
| Experience level | New or developing peptide users | Experienced peptide users |
| Best for | Daily hydration, smoothness and firmness | A more intensive peptide routine |
| Choose it when | Beginning with Cellora peptides | Original has already been used comfortably |
Full ingredients (INCI)
Water, Glycerin, Butylene Glycol, Lactobacillus / Soybean Fermentation Filtrate, Trehalose, Panthenol, 1,3-Propanediol, Seawater, Phenoxyethanol, Triethanolamine, Carbomer, Caprylyl Glycol, Tripeptide-1 Copper, Ethylhexylglycerin, Hexanediol, Acrylates / C10-30 Alkyl Acrylate Crosspolymer, 1,2-Pentanediol, p-Hydroxyacetophenone, Hydrolyzed Red Algae Extract, Sodium Hyaluronate, PPG-13-Decyltetradecyl Ether-24, Hydrolyzed Collagen, Palmitoyl Tripeptide-5, CI 42090, Acetyl Hexapeptide-8, Palmitoyl Pentapeptide-4, Acetyl Octapeptide-3
Questions about Glo Skin Serum
Who it’s for
For customers who are new to Cellora peptide skincare or want a daily formula supporting smoother, firmer and more hydrated-looking skin.
- Are beginning a peptide skincare routine
- Want to soften the appearance of expression lines
- Are concerned about reduced-looking firmness
- Want smoother and more hydrated-looking skin
- Have dull, tired or depleted-looking skin
- Want a daily serum rather than an intensive treatment
- Are deciding between Glo Skin Serum Original and Ultra
What are GHK-Cu and SNAP-8?
GHK-Cu (Copper Tripeptide-1) is a copper peptide long used in skincare, and SNAP-8 (Acetyl Octapeptide-3) is a peptide known for helping soften the look of fine lines. This serum pairs both with hyaluronic acid.
How do I use it?
Apply 5 to 6 drops to clean, dry skin across the face, neck and décolletage, twice daily. In the morning, follow with moisturizer and SPF.
What is the formula free of?
The formula is free of sulfates, parabens, phthalates, synthetic fragrance, formaldehyde and dyes. It is dermatologist tested and hypoallergenic. The full ingredient list is on the page above.
Should I start with the Glo Skin Serum or the Ultra?
Start here. The Glo Skin Serum carries 1% Blue Copper Peptide and 1% Snap-8 Peptide, the lower of the two strengths. Step up to the Ultra once your skin is comfortable with it.
How should I store it?
Keep it away from excessive heat, direct sunlight and extreme temperatures, and out of reach of children. It is for external use only.
Is it made in the USA?
Yes. The Glo Skin Serum is made in the USA.
How much is it?
The Glo Skin Serum is $68.
Made in USA
1% Blue Copper Peptide (GHK-Cu)
1% SNAP-8 Peptide
Dermatologist tested & hypoallergenic
1.0 fl oz / 30 mL
Warnings. For external use only. Avoid direct contact with the eyes. Patch test before first use, and discontinue if irritation occurs. Keep out of reach of children.
Cosmetic product. Statements describe the look and feel of skin and hair and are not intended to diagnose, treat, cure, or prevent any disease.
Pairs well with
Pre-event glow
Bio Collagen Hydrogel Mask
Brighter, bouncier-looking skin before you walk out the door
- PDRN, collagen and niacinamide in one mask
- Brightens dull, uneven-looking tone
- Cooling hydrogel that sits flush on skin, makeup-ready after
PDRN + collagen + niacinamide
$27.99
Weekly reset
Bio Peptide Recovery Mask
20 minutes to calmer, plumper-looking skin
- Copper peptide plus 6 types of hyaluronic acid
- Calms dry, tight or stressed-looking skin
- Cooling sheet mask, no rinsing
GHK-Cu + 6 hyaluronic acids
$24.99
Strongest formula
Glo Skin Serum Ultra
3x the peptides, for lines that won’t budge
- 3x the GHK-Cu and SNAP-8 of Glo Skin Serum
- Targets forehead, frown and smile lines
- For skin already used to active skincare
3% GHK-Cu + 3% SNAP-8
$79
