Peptide Skincare & BeautySkin science and ingredient guides

Skin science article

Asterwood Naturals Copper Peptides Serum Versus Neurogan Health Advanced GHK-Cu Copper Peptide Face Serum

Asterwood Naturals Copper Peptides Serum Versus Neurogan Health Advanced GHK-Cu Copper Peptide Face Serum This anti-aging serum is formulated around Copper Tripeptide-1 and Sodium Hyaluronate to soften the look of wrinkles and strengthen the skin barrier. This

By Peptide Skincare & Beauty Editorial TeamPublished

Asterwood Naturals Copper Peptides Serum Versus Neurogan Health Advanced GHK-Cu Copper Peptide Face Serum

This anti-aging serum is formulated around Copper Tripeptide-1 and Sodium Hyaluronate to soften the look of wrinkles and strengthen the skin barrier.

This anti-aging serum is formulated around Copper Tripeptide-1 and Aloe Barbadensis Leaf Juice to soften the look of wrinkles and strengthen the skin barrier.

What's inside

Key Ingredients

Benefits

Concerns

No concerns

Ingredients Side-by-side

Water

Pentylene Glycol

Phenylpropanol

Sodium Hyaluronate

Copper Tripeptide-1

Sodium Hydroxide

Water, Pentylene Glycol, Phenylpropanol, Sodium Hyaluronate, Copper Tripeptide-1, Sodium Hydroxide

Aloe Barbadensis Leaf Juice

Guar Hydroxypropyltrimonium Chloride

Glycerin

Kojic Acid

Carica Papaya Seed Oil

Simmondsia Chinensis Seed Oil

Ethylhexylglycerin

Phenoxyethanol

Tocopherol

Niacinamide

Oryza Sativa Bran Oil

Citrus Limon Peel Oil

Copper Tripeptide-1, Aloe Barbadensis Leaf Juice, Guar Hydroxypropyltrimonium Chloride, Glycerin, Kojic Acid, Carica Papaya Seed Oil, Simmondsia Chinensis Seed Oil, Ethylhexylglycerin, Phenoxyethanol, Tocopherol, Niacinamide, Oryza Sativa Bran Oil, Citrus Limon Peel Oil, Water

Reviews

Be the first to review

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:

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 Explained

  1. 01These ingredients are found in both products.
  2. 02Ingredients higher up in an ingredient list are typically present in a larger amount.
  3. 03Glycerin (or glycerol) is a compound naturally found in your skin. It's a powerhouse humectant that pulls water into the stratum corneum.
  4. 04Topically, glycerin does several things at once:
  5. 05Your skin makes glycerin on its own (mostly from sebaceous oil breakdown) and shuttles it to your outermost layer of skin, or your epidermis, via aquaporin-3.
  6. 06Aquaporin-3 is a transporter that is essential for normal skin hydration, elasticity, and repair. Interestingly, mice lacking in AQP3 have dry and less elastic skin that can be fully corrected with glycerin.
  7. 07This ingredient is non-irritating, plays well with almost every ingredient, and works across all skin types. Typical use is anywhere between 3-10% but can go up to 79% in some leave-on products.
  8. 08Just know very high concentrations (>40%) can feel tacky in low humidity.
  9. 09Glycerin is the name for this ingredient in American English. British English uses Glycerol/Glycerine.
  10. 10Phenoxyethanol is one of the most widely used preservatives in skincare (and for good reason!).
  11. 11It 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.
  12. 12On 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.
  13. 13Another perk of this ingredient is that it stays functional across a wide pH range (3-10).
  14. 14You'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.
  15. 15Typical use concentrations range from 0.3-1% depending on the formula, and this ingredient is capped at 1% int the EU.
  16. 16Safety-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.
  17. 17Adverse 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.
  18. 18Water. 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.
  19. 19So why is it so popular? Water most often acts as a solvent - this means that it helps dissolve other ingredients into the formulation.
  20. 20You'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!
Source · skinsort.com ⟶
02

Product index

Related product references

03

Comparison edit

Read side by side

05

Source shelf

Research & excerpts

Research note

Why Researchers Choose GHK-Cu Copper Peptide

At the forefront of regenerative science, GHK-Cu copper peptide stands out as a compound of immense interest. It's a naturally occurring tripeptide that has captivated the scientific community for decades due to its profound biological roles. Researchers are drawn to it not just for what it is, but for what it represents: a key to potentially unlocking the body's own restorative processes. Its presence is linked to critical functions like collagen synthesis, anti-inflammatory responses, and antioxidant support, making it a cornerstone compound for a wide range of advanced studies. The real excitement comes from its potential applications. For scientists, working with GHK-Cu copper peptide is about exploring the frontiers of cellular health. It's about investigating new pathways for tissue repair, understanding the mechanisms of skin rejuvenation, and even delving into the complexities of age-related cellular decline. The emotional driver is the possibility of discovery—the chance to contribute to findings that could one day redefine our approach to dermatological and regenerative science. This peptide isn't just a substance in a vial; it's a tool for pioneers. Of course, pioneering research demands uncompromising quality. That’s where Real Peptides makes a critical difference for the Chicago research community. While the market is flooded with options, not all peptides are created equal. We built our reputation on an unwavering commitment to purity, verification, and consistency. Every batch of our GHK CU Copper Peptide undergoes rigorous third-party testing, ensuring you receive a product that meets the highest standards for scientific use. We understand that reproducible results start with reliable materials. This commitment to quality empowers a diverse range of scientific investigations right here in Chicago: Dermatological & Cosmetic Science: Studies often focus on GHK-Cu's role in stimulating collagen and elastin production. Our GHK CU Cosmetic 5MG is specifically sourced for this type of detailed research, exploring its effects on skin firmness and texture. Tissue Repair and Wound Healing: Researchers use GHK-Cu in various models to observe its influence on the body's natural healing cascades, looking for ways to support and accelerate recovery. Anti-Aging and Cellular Health: The peptide is a key subject in studies on cellular senescence and longevity. This work often runs parallel to research on other compounds like FOXO4 DRI that also target cellular aging pathways. This is why verifiable purity is non-negotiable. A Certificate of Analysis (CoA) isn't just a piece of paper; it's your assurance that the compound you're using is free from contaminants and has the specified identity and concentration. This level of transparency eliminates variables, allowing you to trust your data and build upon your findings with confidence. It's the bedrock of credible, impactful science, a standard we uphold for every product we offer. Ultimately, GHK-Cu is one of many vital tools in the modern researcher's toolkit. Its potential is often studied alongside other synergistic compounds that support recovery and regeneration, such as the well-regarded BPC 157 Peptide. By providing a comprehensive and reliable source for these tools, we empower scientists to push boundaries. We invite you to explore our full collection of peptides and see how our commitment to excellence can support your work. As a dedicated supplier for Chicago's innovators—from university labs to private R&D facilities—Real Peptides is more than a vendor. We are a partner in your pursuit of knowledge. We provide the foundational materials you need to turn hypotheses into discoveries, ensuring every experiment is built on a platform of trust and quality. Explore High-Purity Research Peptides

Source · realpeptides.co ⟶

Research note

GHK-Cu Copper Peptide in Phoenix | Research-Grade Peptides

Phoenix-based research labs are unlocking new frontiers in regenerative science, and GHK-Cu Copper Peptide is at the forefront. At Real Peptides, we provide the highest purity, lab-verified GHK-Cu to empower your most critical studies with unparalleled quality and consistency.

Source · realpeptides.co ⟶

Continue reading

Related articles