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The Ordinary Multi Peptides + Copper Peptide 1% Versus Platinum Skincare 7% GHK-Cu Accelerant Serum

The Ordinary Multi Peptides + Copper Peptide 1% Versus Platinum Skincare 7% GHK-Cu Accelerant Serum This anti-aging serum is formulated around Lactococcus Ferment Lysate and Copper Tripeptide-1 to soften the look of wrinkles and refine skin texture. This anti-

The Ordinary Multi Peptides + Copper Peptide 1% Versus Platinum Skincare 7% GHK-Cu Accelerant Serum

This anti-aging serum is formulated around Lactococcus Ferment Lysate and Copper Tripeptide-1 to soften the look of wrinkles and refine skin texture.

This anti-aging treatment is formulated around Copper Tripeptide-1 to soften the look of wrinkles and fade the look of dark spots.

What's inside

Key Ingredients

Benefits

Concerns

No concerns

Ingredients Side-by-side

Water

Glycerin

Lactococcus Ferment Lysate

Copper Tripeptide-1

Acetyl Hexapeptide-8

Pentapeptide-18

Palmitoyl Tripeptide-1

Palmitoyl Tetrapeptide-7

Palmitoyl Tripeptide-38

Dipeptide Diaminobutyroyl Benzylamide Diacetate

Acetylarginyltryptophyl Diphenylglycine

Sodium Hyaluronate Crosspolymer

Sodium Hyaluronate

Allantoin

Glycine

Alanine

Serine

Valine

Isoleucine

Proline

Threonine

Histidine

Phenylalanine

Arginine

Aspartic Acid

Trehalose

Fructose

Glucose

Maltose

Urea

Sodium PCA

PCA

Sodium Lactate

Citric Acid

Hydroxypropyl Cyclodextrin

Sodium Chloride

Sodium Hydroxide

Butylene Glycol

Pentylene Glycol

Acacia Senegal Gum

Xanthan Gum

Carbomer

Polysorbate 20

Dimethyl Isosorbide

Sodium Benzoate

Caprylyl Glycol

Ethylhexylglycerin

Phenoxyethanol

Chlorphenesin

Water, Glycerin, Lactococcus Ferment Lysate, Copper Tripeptide-1, Acetyl Hexapeptide-8, Pentapeptide-18, Palmitoyl Tripeptide-1, Palmitoyl Tetrapeptide-7, Palmitoyl Tripeptide-38, Dipeptide Diaminobutyroyl Benzylamide Diacetate, Acetylarginyltryptophyl Diphenylglycine, Sodium Hyaluronate Crosspolymer, Sodium Hyaluronate, Allantoin, Glycine, Alanine, Serine, Valine, Isoleucine, Proline, Threonine, Histidine, Phenylalanine, Arginine, Aspartic Acid, Trehalose, Fructose, Glucose, Maltose, Urea, Sodium PCA, PCA, Sodium Lactate, Citric Acid, Hydroxypropyl Cyclodextrin, Sodium Chloride, Sodium Hydroxide, Butylene Glycol, Pentylene Glycol, Acacia Senegal Gum, Xanthan Gum, Carbomer, Polysorbate 20, Dimethyl Isosorbide, Sodium Benzoate, Caprylyl Glycol, Ethylhexylglycerin, Phenoxyethanol, Chlorphenesin

Water, Copper Tripeptide-1, Phenoxyethanol

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Alternatives

Ingredients Explained

These ingredients are found in both products.

Ingredients higher up in an ingredient list are typically present in a larger amount.

Copper Tripeptide-1 (GHK-Cu) is a skin repairing ingredient known for its ability to boost collagen, improve firmness, and support skin regeneration.

It is a complex made up of a naturally occurring peptide (glycine-histidine-lysine) and copper, an essential trace element.

While studying wound healing, researchers noticed GHK-Cu stimulated hair follicle enlargement and growth by keeping hair in its active growth phase longer. This has made it a promising ingredient for hair regrowth treatments.

Some people have reported increased facial hair. While GHK-Cu can make your hair follicles bigger, it usually doesn’t turn soft, barely-visible facial hairs into thick, dark ones.

Anecdotal reports suggest that overusing copper peptides might lead to premature aging due to excess free copper or enzyme imbalances. This claim isn’t backed by large-scale studies.

Unfortunately, there are limited human studies for this ingredient. While early results are promising, many studies are either small, in-vitro, or not rigorously controlled.

For example, there is a 1998 study that explored the effects of copper tripeptide, vitamin C, tretinoin, and melatonin on skin repair and collagen synthesis.

After one month, increased procollagen production was seen in 7 out of 10 participants using copper tripeptide (more than those using vitamin C, melatonin, or tretinoin.

While the study was exploratory, it offers early evidence that copper tripeptide may support collagen production. Larger, well-designed trials are still needed to confirm its potential and understand individual responses.

Read more about other common types of peptides here:

Phenoxyethanol is one of the most widely used preservatives in skincare (and for good reason!).

It has a large spectrum of antimicrobial activity and especially effective bacteria, yeast, and mold while only having a weak effect on your skin's natural microbiome.

On a cellular level, it disrupts the cell membranes of microbes by poking holes that make the cell leak. This shuts down the chemical reactions the microbe needs to make energy so it can no longer survive.

Another perk of this ingredient is that it stays functional across a wide pH range (3-10).

You'll often see it paired with boosters like Ethylhexylglycerin; one study showed that a 1:9 ratio of Ethylhexylglycerin to Phenoxyethanol damages bacterial membranes as effectively as doubling the Phenoxyethanol concentration on its own.

Typical use concentrations range from 0.3-1% depending on the formula, and this ingredient is capped at 1% int the EU.

Safety-wise, the fear mongering does not hold up to the evidence. The EU's Scientific Committee on Consumer Safety and FDA consider it safe as a preservative at up to 1%, including for children of all ages.

Adverse systemic effects only showed up in animal studies at exposures roughly 200x higher than what people get from cosmetics. And despite its very widespread use, this ingredient is a rare sensitizer and allergic reactions are uncommon.

Water. It's the most common cosmetic ingredient of all. You'll usually see it at the top of ingredient lists, meaning that it makes up the largest part of the product.

So why is it so popular? Water most often acts as a solvent - this means that it helps dissolve other ingredients into the formulation.

You'll also recognize water as that liquid we all need to stay alive. If you see this, drink a glass of water. Remember to stay hydrated!

Similar Comparisons

The reference edit

Ingredients, questions
& further reading.

Connected source records selected through this article’s public topic index.

01

Formula cabinet

Ingredients & structured notes

Ingredient index

Ingredients Side-by-side

  1. 01Water
  2. 02Glycerin
  3. 03Lactococcus Ferment Lysate
  4. 04Copper Tripeptide-1
  5. 05Acetyl Hexapeptide-8
  6. 06Pentapeptide-18
  7. 07Palmitoyl Tripeptide-1
  8. 08Palmitoyl Tetrapeptide-7
  9. 09Palmitoyl Tripeptide-38
  10. 10Dipeptide Diaminobutyroyl Benzylamide Diacetate
  11. 11Acetylarginyltryptophyl Diphenylglycine
  12. 12Sodium Hyaluronate Crosspolymer
  13. 13Sodium Hyaluronate
  14. 14Allantoin
  15. 15Glycine
  16. 16Alanine
  17. 17Serine
  18. 18Valine
  19. 19Isoleucine
  20. 20Proline
Source · skinsort.com
02

Product index

Related product references

Product

Nano Recipe Copper Peptide-1

Nano Recipe Copper Peptide-1 Ingredients in Nano Recipe Copper Peptide-1 explained: benefits, concerns, and detailed analysis of 4 ingredients including Copper Tripeptide-1, Water, and Prop…

Source: skinsort.comView reference →

Product

Dr Sheth 's Copper Peptide

Dr Sheth 's Copper Peptide Dr Sheth 's Copper Peptide ingredients explained: Purified Water, Propanediol, Acetyl Hexapeptide-8, Caprylyl Glycol, Avena Sativa (Oat) Kernel Extract, Glycerin,…

Source: incidecoder.comView reference →

Product

Lovely Southern GHK-Cu Repair Serum

Lovely Southern GHK-Cu Repair Serum Ingredients in Lovely Southern GHK-Cu Repair Serum explained: benefits, concerns, and detailed analysis of 9 ingredients including Water, Sodium Hyaluron…

Source: skinsort.comView reference →
03

Comparison edit

Read side by side

04

Ask the journal

Related questions

01What If I'm Using GHK-Cu for Post-Procedure Recovery?

GHK-Cu accelerates wound healing and reduces post-inflammatory hyperpigmentation, making it well-suited for post-laser or post-peel recovery. Begin application 24–48 hours after the procedure once the skin has re-epithelialized. Avoid mixing with active acids (glycolic, salicylic) during the acute healing phase. The goal is matrix deposition, not exfoliation. Clinical data from wound healing studies shows GHK-Cu increases granulation tissue formation by 30–40% compared to standard care.

Source · realpeptides.co
02What If the Peptide Degrades During Storage?

Store lyophilized GHK-Cu at −20°C in sealed vials with desiccant packs to prevent moisture-induced hydrolysis. Once reconstituted with bacteriostatic water, refrigerate at 2–8°C and use within 30 days. Copper-peptide complexes are stable at this temperature but degrade rapidly above 15°C. A single 24-hour temperature excursion to room temperature reduces biological activity by approximately 25% as the copper coordination weakens. If the solution changes color from pale blue to brown or forms precipitate, discard it immediately. These are signs of oxidative degradation and copper dissociation.

Source · realpeptides.co
03What If My Peptide Supplier Doesn't Provide Third-Party Purity Testing?

Don't use it. GHK-Cu sold without batch-level mass spectrometry or HPLC verification could contain incorrect amino acid sequences, residual synthesis byproducts, or absent copper binding. All of which render the product ineffective or unsafe. Research-grade peptide suppliers provide Certificates of Analysis showing molecular weight confirmation, purity percentage (≥98% is standard), and endotoxin levels. Women 35–45 researching GHK-Cu should verify these documents before purchase. Peptide synthesis errors are common in unregulated manufacturing, and there's no way to visually confirm peptide identity or purity. Our team works exclusively with facilities that publish full batch documentation for exactly this reason.

Source · realpeptides.co
04What If I Need GHK-Cu for Long-Term Studies Spanning 6–12 Months?

Order all peptide at once from a single verified batch and store lyophilized vials at −20°C with desiccant. This maintains copper chelation stability for 18–24 months. Reconstitute only what you need for each experiment and discard unused solution after 72 hours at 4°C, as aqueous GHK-Cu solutions slowly lose copper through oxidation and pH drift even under refrigeration. Avoid freeze-thaw cycles entirely; the osmotic stress during ice crystal formation mechanically disrupts copper coordination bonds. For multi-month studies requiring daily dosing, divide your batch into weekly aliquots immediately upon receipt and never re-freeze a thawed vial.

Source · realpeptides.co
05What If the Reconstituted GHK-Cu Solution Turns Blue-Green After 24 Hours?

Discard the solution immediately—don't inject it. The blue-green color shift indicates copper oxidation from Cu(II) to Cu(III) species, meaning the copper ion has dissociated from the peptide ligands and formed hydroxide or oxide complexes. The peptide is no longer active once copper dissociates. This color change results from air exposure in the syringe or vial, inadequate refrigeration (storage above 8°C accelerates oxidation), or pH shift from alcohol contamination during reconstitution. Prevent recurrence by using 1mL insulin syringes that eliminate air space, storing all solutions at 2–8°C immediately after mixing, and allowing alcohol prep pads to fully evaporate before puncturing vial stoppers.

Source · realpeptides.co
05

Source shelf

Research & excerpts

Research note

The Bottom Line on GHK-Cu Research in 2026

GHK-Cu remains the most thoroughly characterized regenerative peptide available for research use. Its mechanisms span wound healing, Wnt pathway activation, anti-inflammatory modulation, hair follicle biology, and skin regeneration. Its gene-level effects are unparalleled in their breadth. And its decades-long safety record provides a level of confidence that newer peptides simply cannot match. For researchers entering the field of regenerative peptides, GHK-Cu is the logical starting point. For established research programs, it remains a workhorse molecule that continues to produce publishable results. And for anyone comparing suppliers, the copper content question should sit at the top of the evaluation checklist — because without chelated copper, GHK is simply a tripeptide with a fraction of the documented activity. Explore our research-grade copper peptide selection at PSPeptides: GHK-Cu ($29.99), GLOW blend ($79.99), and KLOW blend ($129.99). Every product ships with verified copper content — a standard we consider non-negotiable for serious copper peptide research.

Source · pspeptides.com

Research note

Research Protocol Considerations

CNS delivery challenges: GHK-Cu’s access to the CNS following peripheral administration is not well characterised — the blood-brain barrier limits passage of many peptides. Research examining CNS effects of peripherally administered GHK-Cu should include measurement of brain copper levels (ICP-MS or ICP-OES) and GHK-Cu peptide in brain tissue (LC-MS/MS) to confirm whether the peptide or its copper cargo reaches neural targets. Intranasal administration offers a route that partially bypasses the BBB via olfactory/trigeminal pathways and merits investigation for CNS-targeted GHK-Cu research. Copper toxicity monitoring: Copper is an essential trace element with a narrow therapeutic window — excess copper generates ROS through Fenton chemistry and contributes to neurodegeneration in copper overload conditions (Wilson’s disease). Research protocols using GHK-Cu should include copper level monitoring in plasma and brain tissue and histopathological assessment for copper-associated toxicity at the doses used. Gene expression profiling: Given GHK-Cu’s documented capacity to modulate large gene sets, RNA-Seq of brain tissue from GHK-Cu-treated animals provides the most comprehensive mechanistic characterisation — identifying which of the many hypothesised CNS mechanisms are actually engaged at research-relevant doses. Pathway analysis of differentially expressed genes can prioritise mechanisms for follow-up mechanistic experiments.

Source · peptideslabuk.com