Tosowoong Copper Peptide Face Serum Versus Asterwood Naturals Copper Peptides Serum

Tosowoong Copper Peptide Face Serum Versus Asterwood Naturals Copper Peptides Serum

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

This anti-aging serum is formulated around Copper Tripeptide-1 and Sodium Hyaluronate 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

Glycerin

Niacinamide

1,2-Hexanediol

Hydroxyacetophenone

Melia Azadirachta Leaf Extract

Xanthan Gum

Melia Azadirachta Flower Extract

Coccinia Indica Fruit Extract

Arginine

Carbomer

Copper Tripeptide-1

Aloe Barbadensis Flower Extract

Solanum Melongena Fruit Extract

Adenosine

Disodium EDTA

Alcohol

Ocimum Sanctum Leaf Extract

Tris(Tetramethylhydroxypiperidinol)Citrate

Corallina Officinalis Extract

Curcuma Longa Root Extract

Butylene Glycol

Caprylic/Capric Triglyceride

Lecithin

Polysorbate 20

Atelocollagen

Desamido Collagen

Hydrolyzed Collagen

Dimethylsilanol Hyaluronate

Hydrolyzed Hyaluronic Acid

Hydrolyzed Sodium Hyaluronate

Soluble Collagen

Hyaluronic Acid

Potassium Hyaluronate

Sodium Hyaluronate

Sodium Hyaluronate Crosspolymer

Collagen

Collagen Amino Acids

Sodium Hyaluronate Dimethylsilanol

Sodium Acetylated Hyaluronate

Sodium Ascorbyl Phosphate

Procollagen

Tripeptide-1

Tripeptide-29

Hexapeptide-12

Nicotinoyl Tripeptide-35

Palmitoyl Tripeptide-1

Acetyl Hexapeptide-8

Hexapeptide-9

Nonapeptide-7

Palmitoyl Pentapeptide-4

Palmitoyl Tetrapeptide-7

Palmitoyl Tripeptide-29

Water, Glycerin, Niacinamide, 1,2-Hexanediol, Hydroxyacetophenone, Melia Azadirachta Leaf Extract, Xanthan Gum, Melia Azadirachta Flower Extract, Coccinia Indica Fruit Extract, Arginine, Carbomer, Copper Tripeptide-1, Aloe Barbadensis Flower Extract, Solanum Melongena Fruit Extract, Adenosine, Disodium EDTA, Alcohol, Ocimum Sanctum Leaf Extract, Tris(Tetramethylhydroxypiperidinol)Citrate, Corallina Officinalis Extract, Curcuma Longa Root Extract, Butylene Glycol, Caprylic/Capric Triglyceride, Lecithin, Polysorbate 20, Atelocollagen, Desamido Collagen, Hydrolyzed Collagen, Dimethylsilanol Hyaluronate, Hydrolyzed Hyaluronic Acid, Hydrolyzed Sodium Hyaluronate, Soluble Collagen, Hyaluronic Acid, Potassium Hyaluronate, Sodium Hyaluronate, Sodium Hyaluronate Crosspolymer, Collagen, Collagen Amino Acids, Sodium Hyaluronate Dimethylsilanol, Sodium Acetylated Hyaluronate, Sodium Ascorbyl Phosphate, Procollagen, Tripeptide-1, Tripeptide-29, Hexapeptide-12, Nicotinoyl Tripeptide-35, Palmitoyl Tripeptide-1, Acetyl Hexapeptide-8, Hexapeptide-9, Nonapeptide-7, Palmitoyl Pentapeptide-4, Palmitoyl Tetrapeptide-7, Palmitoyl Tripeptide-29

Pentylene Glycol

Phenylpropanol

Sodium Hydroxide

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

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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.

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:

Sodium Hyaluronate is the salt form of hyaluronic acid. It is a long sugar chain that is naturally found in your skin, joints, and connective tissue that maintains hydration and elasticity.

In skincare, it works as a humectant. It pulls water from the environment and deeper layers of skin and binds it to the surface.

Interestingly, the size of the molecule affects its behavior:

Some clinical evidence links low molecular weight versions to improved wrinkle depth, elasticity, anti-inflammatory effects, and barrier repair.

Many serums use a blend of both weights so you can get surface hydration plus longer-lasting and deeper effects.

You'll typically see concentrations between 0.1-2% for this ingredient.

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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