Skin science article
Boots Peptide Serum Versus Good Molecules Super Peptide Serum
Boots Peptide Serum Versus Good Molecules Super Peptide Serum This anti-aging serum is formulated around Niacinamide and Palmitoyl Tripeptide-1 to soften the look of wrinkles and strengthen the skin barrier. This anti-aging serum is formulated around Acetyl He
Boots Peptide Serum Versus Good Molecules Super Peptide Serum
This anti-aging serum is formulated around Niacinamide and Palmitoyl Tripeptide-1 to soften the look of wrinkles and strengthen the skin barrier.
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.
What's inside
Key Ingredients
Benefits
Concerns
No concerns
Ingredients Side-by-side
Water
Glycerin
Butylene Glycol
Niacinamide
Pentylene Glycol
1,2-Hexanediol
Betaine
Trehalose
Ammonium Polyacryloyldimethyl Taurate
Xanthan Gum
Sodium PCA
Allantoin
Hydroxyacetophenone
Carnosine
Sodium Lactate
PCA
Polyacrylate Crosspolymer-6
Sodium Hyaluronate
Disodium EDTA
Serine
Alanine
Glycine
Sodium Hyaluronate Crosspolymer
Glutamic Acid
Lysine Hcl
Carbomer
Threonine
Arginine
Polysorbate 20
Proline
Palmitoyl Tripeptide-1
Palmitoyl Tetrapeptide-7
Water, Glycerin, Butylene Glycol, Niacinamide, Pentylene Glycol, 1,2-Hexanediol, Betaine, Trehalose, Ammonium Polyacryloyldimethyl Taurate, Xanthan Gum, Sodium PCA, Allantoin, Hydroxyacetophenone, Carnosine, Sodium Lactate, PCA, Polyacrylate Crosspolymer-6, Sodium Hyaluronate, Disodium EDTA, Serine, Alanine, Glycine, Sodium Hyaluronate Crosspolymer, Glutamic Acid, Lysine Hcl, Carbomer, Threonine, Arginine, Polysorbate 20, Proline, Palmitoyl Tripeptide-1, Palmitoyl Tetrapeptide-7
Propanediol
Ammonium Acryloyldimethyltaurate/Vp Copolymer
Diheptyl Succinate
Capryloyl Glycerin/Sebacic Acid Copolymer
Ethylhexylglycerin
Caprylyl Glycol
Acetyl Hexapeptide-8
Acetyl Octapeptide-3
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
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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
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.
Glycine is the smallest amino acid and a key building block of collagen. It's part if your skin's Natural Moisturizing Factor (NMF), or the water-loving molecules in your outermost layer of skin (stratum corneum) that keeps everything hydrated and happy.
A study from 2022 found that an amino acid complex featuring taurine, arginine, and glycine significantly reduced skin irritation, improved redness, and accelerated the skin repair process.
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.