Allies of Skin Copper Tripeptide & Ectoin Advanced Repair Serum Versus MediCube PDRN Pink Peptide Serum

Allies of Skin Copper Tripeptide & Ectoin Advanced Repair Serum Versus MediCube PDRN Pink Peptide Serum

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

This anti-aging serum is formulated around Niacinamide and Sodium DNA to soften the look of wrinkles and refine skin texture.

What's inside

Key Ingredients

Benefits

Concerns

Ingredients Side-by-side

Water

Glycerin

Ectoin

Polyglyceryl-10 Oleate

Coco-Caprylate/Caprate

Isononyl Isononanoate

Dimethyl Isosorbide

Panthenol

Carnitine

Tocopherol

Copper Tripeptide-1

Oxidized Glutathione

Ergothioneine

Tropolone

Copper Lysinate/Prolinate

Acetyl Hexapeptide-8

Methylglucoside Phosphate

Hydroxyethylcellulose

Saccharide Isomerate

Ethylhexylglycerin

Sodium Gluconate

Sclerotium Gum

Disodium Phosphate

Sodium Phosphate

Caprylyl Glycol

Propanediol

1,2-Hexanediol

Hydroxyethyl Acrylate/Sodium Acryloyldimethyl Taurate Copolymer

Citric Acid

Polysorbate 60

Sodium Hydroxide

Polysorbate 20

Phenoxyethanol

Water, Glycerin, Ectoin, Polyglyceryl-10 Oleate, Coco-Caprylate/Caprate, Isononyl Isononanoate, Dimethyl Isosorbide, Panthenol, Carnitine, Tocopherol, Copper Tripeptide-1, Oxidized Glutathione, Ergothioneine, Tropolone, Copper Lysinate/Prolinate, Acetyl Hexapeptide-8, Methylglucoside Phosphate, Hydroxyethylcellulose, Saccharide Isomerate, Ethylhexylglycerin, Sodium Gluconate, Sclerotium Gum, Disodium Phosphate, Sodium Phosphate, Caprylyl Glycol, Propanediol, 1,2-Hexanediol, Hydroxyethyl Acrylate/Sodium Acryloyldimethyl Taurate Copolymer, Citric Acid, Polysorbate 60, Sodium Hydroxide, Polysorbate 20, Phenoxyethanol

Dipropylene Glycol

Isopropyl Myristate

Glycereth-26

Niacinamide

Sodium DNA

Butylene Glycol

Polyglycerin-3

Sodium Acrylate/Sodium Acryloyldimethyl Taurate Copolymer

Polyisobutene

Acrylates/C10-30 Alkyl Acrylate Crosspolymer

Milt Extract

Tromethamine

Glyceryl Acrylate/Acrylic Acid Copolymer

Pvm/Ma Copolymer

Parfum

Melia Azadirachta Leaf Extract

Adenosine

Caprylyl/Capryl Glucoside

Sorbitan Oleate

Melia Azadirachta Flower Extract

Sodium Hyaluronate

Disodium EDTA

Curcuma Longa Root Extract

Cyanocobalamin

Hydrolyzed Collagen

Ubiquinone

Ocimum Sanctum Leaf Extract

Corallina Officinalis Extract

Palmitoyl Pentapeptide-4

Palmitoyl Tripeptide-1

Palmitoyl Tetrapeptide-7

Salmon Egg Extract

Atelocollagen

Water, Glycerin, Dipropylene Glycol, Isopropyl Myristate, Glycereth-26, Niacinamide, 1,2-Hexanediol, Sodium DNA, Butylene Glycol, Polyglycerin-3, Sodium Acrylate/Sodium Acryloyldimethyl Taurate Copolymer, Polyisobutene, Acrylates/C10-30 Alkyl Acrylate Crosspolymer, Milt Extract, Tromethamine, Glyceryl Acrylate/Acrylic Acid Copolymer, Pvm/Ma Copolymer, Ethylhexylglycerin, Caprylyl Glycol, Parfum, Melia Azadirachta Leaf Extract, Adenosine, Caprylyl/Capryl Glucoside, Sorbitan Oleate, Melia Azadirachta Flower Extract, Sodium Hyaluronate, Disodium EDTA, Curcuma Longa Root Extract, Cyanocobalamin, Hydrolyzed Collagen, Ubiquinone, Ocimum Sanctum Leaf Extract, Corallina Officinalis Extract, Palmitoyl Pentapeptide-4, Palmitoyl Tripeptide-1, Palmitoyl Tetrapeptide-7, Copper Tripeptide-1, Acetyl Hexapeptide-8, Salmon Egg Extract, Atelocollagen

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.

1,2-Hexanediol is a synthetic liquid and another multi-functional powerhouse.

It is a:

Humectant, drawing moisture into the skin

Emollient, helping to soften skin

Solvent, dispersing and stabilizing formulas

Preservative booster, enhancing the antimicrobial activity of other preservatives

Acetyl Hexapeptide-8 (also known as Argireline) is a synthetic hexapeptide that is often called a "topical Botox alternative".

It works by mimicking how Botox relaxes muscles; it interferes with the signaling process that tells your facial muscles to contract. This can help soften expression lines like forehead wrinkles or crow's feet over time.

The comparison to Botox does have limits because the molecule is water-loving and relatively large.

Acetyl Hexapeptide-8 has a hard time absorbing deeply enough through the skin's outer barrier to actually reach the muscles.

So whether it truly works the way Botox does at a biological level is still up for debate, but early clinical outcomes are fairly encouraging.

A 12 week human study of a multi-ingredient regimen containing this ingredient saw:

While some studies have observed improvements in wrinkle appearance, it is important to note that more consistent results are seen in multi-ingredient formulations (vs just Acetyl Hexapeptide-8 alone).

Some research studies also used higher concentrations (up to 10%) while this ingredient is usually found in concentrations up to 0.005% in leave-on formulations.

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.

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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