Good Molecules Super Peptide Serum Versus Biossance Squalane + Copper Peptide Rapid Plumping Serum

Good Molecules Super Peptide Serum Versus Biossance Squalane + Copper Peptide Rapid Plumping Serum

This anti-aging serum is formulated around Acetyl Hexapeptide-8 and Acetyl Octapeptide-3 to soften the look of wrinkles and strengthen the skin barrier.

This hydrating serum is formulated around Squalane and Sodium Hyaluronate to hydrate skin and soften the look of wrinkles.

What's inside

Key Ingredients

Benefits

Ingredients Side-by-side

Water

Propanediol

Glycerin

Ammonium Acryloyldimethyltaurate/Vp Copolymer

1,2-Hexanediol

Diheptyl Succinate

Capryloyl Glycerin/Sebacic Acid Copolymer

Glycine

Xanthan Gum

Ethylhexylglycerin

Caprylyl Glycol

Acetyl Hexapeptide-8

Acetyl Octapeptide-3

Sodium Hyaluronate

Copper Tripeptide-1

Tocopherol

Water, Propanediol, Glycerin, Ammonium Acryloyldimethyltaurate/Vp Copolymer, 1,2-Hexanediol, Diheptyl Succinate, Capryloyl Glycerin/Sebacic Acid Copolymer, Glycine, Xanthan Gum, Ethylhexylglycerin, Caprylyl Glycol, Acetyl Hexapeptide-8, Acetyl Octapeptide-3, Sodium Hyaluronate, Copper Tripeptide-1, Tocopherol

Squalane

Hydroxyethyl Acrylate/Sodium Acryloyldimethyl Taurate Copolymer

Acmella Oleracea Extract

Ectoin

Tetrapeptide-30

Palmitoyl Hexapeptide-52

Copper PCA

Panthenol

Sodium Polyglutamate

Camellia Sinensis Leaf Extract

Aloe Barbadensis Flower Extract

Passiflora Incarnata Flower Extract

Melia Azadirachta Leaf Extract

Solanum Melongena Fruit Extract

Curcuma Longa Root Extract

Ocimum Basilicum Flower/Leaf Extract

Coccinia Indica Fruit Extract

Melia Azadirachta Flower Extract

Ocimum Sanctum Leaf Extract

Corallina Officinalis Extract

Polyacrylate Crosspolymer-6

Acacia Senegal Gum

Phenoxyethanol

Citric Acid

Water, Glycerin, Propanediol, Squalane, Sodium Hyaluronate, Hydroxyethyl Acrylate/Sodium Acryloyldimethyl Taurate Copolymer, Copper Tripeptide-1, Acmella Oleracea Extract, Ectoin, Tetrapeptide-30, Palmitoyl Hexapeptide-52, Copper PCA, Panthenol, Sodium Polyglutamate, Camellia Sinensis Leaf Extract, Aloe Barbadensis Flower Extract, Passiflora Incarnata Flower Extract, Melia Azadirachta Leaf Extract, Solanum Melongena Fruit Extract, Curcuma Longa Root Extract, Ocimum Basilicum Flower/Leaf Extract, Coccinia Indica Fruit Extract, Melia Azadirachta Flower Extract, Ocimum Sanctum Leaf Extract, Corallina Officinalis Extract, Polyacrylate Crosspolymer-6, Acacia Senegal Gum, Xanthan Gum, Phenoxyethanol, Ethylhexylglycerin, Citric Acid, Caprylyl Glycol

Reviews

Alternatives

Ingredients Explained

These ingredients are found in both products.

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

Caprylyl Glycol is a humectant, skin conditioner, emollient, and preservative booster derived from either caprylic acid or synthetically created.

Typical use levels vary from 0.3-1% as a preservative booster and go up to 2% to condition skin.

Because it is not a free-fatty acid, this ingredient is fungal acne safe (there's nothing for Malassezia to feed on).

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:

Ethylhexylglycerin is created from glycerin. It is a multitasker ingredient that:

The CIR Expert Panel found minimal skin absorption or sensitization of any kind in a safety assessment. Though this ingredient is considered well-tolerated, a small number of cases of allergic dermatitis have been published since 2002. Just be sure to patch test if you are unsure.

Industry-reported use ranges from 8% in rinse-off products and 2% in leave-on formulations.

Glycerin (or glycerol) is a compound naturally found in your skin. It's a powerhouse humectant that pulls water into the stratum corneum.

Topically, glycerin does several things at once:

Your 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.

Aquaporin-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.

This 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.

Just know very high concentrations (>40%) can feel tacky in low humidity.

Glycerin is the name for this ingredient in American English. British English uses Glycerol/Glycerine.

Propanediol is an all-star ingredient. It softens, hydrates, and smooths the skin.

It’s often used to:

Propanediol is not likely to cause sensitivity and considered safe to use. It is derived from corn or petroleum with a clear color and no scent.

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!

Xanthan gum is used as a stabilizer and thickener within cosmetic products. It helps give products a sticky, thick feeling - preventing them from being too runny.

On the technical side of things, xanthan gum is a polysaccharide - a combination consisting of multiple sugar molecules bonded together.

Xanthan gum is a pretty common and great ingredient. It is a natural, non-toxic, non-irritating ingredient that is also commonly used in food products.

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