Mary & May 6 Peptide Complex Serum Versus Complete Skin Solutions Copper Peptide Serum

Mary & May 6 Peptide Complex Serum Versus Complete Skin Solutions Copper Peptide Serum

This anti-aging serum is formulated around Copper Tripeptide-1 and Palmitoyl Pentapeptide-4 to soften the look of wrinkles and refine skin texture.

This anti-aging serum is formulated around Copper Tripeptide-1 and Palmitoyl Tetrapeptide-7 to soften the look of wrinkles and strengthen the skin barrier.

What's inside

Key Ingredients

Benefits

Concerns

Ingredients Side-by-side

Water

Glycereth-26

1,2-Hexanediol

Butylene Glycol

Glycerin

Arginine

Carbomer

Ethylhexylglycerin

Polyglyceryl-10 Laurate

Adenosine

Caprylyl Glycol

Copper Tripeptide-1

Hexapeptide-11

Hexapeptide-9

Palmitoyl Pentapeptide-4

Palmitoyl Tripeptide-1

Tripeptide-1

Water, Glycereth-26, 1,2-Hexanediol, Butylene Glycol, Glycerin, Arginine, Carbomer, Ethylhexylglycerin, Polyglyceryl-10 Laurate, Adenosine, Caprylyl Glycol, Copper Tripeptide-1, Hexapeptide-11, Hexapeptide-9, Palmitoyl Pentapeptide-4, Palmitoyl Tripeptide-1, Tripeptide-1

Propanediol

Collagen

Ceramides

Triethanolamine

Palmitoyl Tetrapeptide-7

Palmitoyl Oligopeptide

Hyaluronic Acid

Phenoxyethanol

Water, Copper Tripeptide-1, Propanediol, Butylene Glycol, Collagen, Ceramides, Triethanolamine, Palmitoyl Tetrapeptide-7, Palmitoyl Oligopeptide, Hyaluronic Acid, Phenoxyethanol

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Ingredients Explained

These ingredients are found in both products.

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

Butylene Glycol (or BG) is used within cosmetic products for a few different reasons:

Overall, Butylene Glycol is a safe and well-rounded ingredient that works well with other ingredients.

Though this ingredient works well with most skin types, some people with sensitive skin may experience a reaction such as allergic rashes, closed comedones, or itchiness.

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!

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