Skin science article
DRMTLGY Peptide Night Cream Versus SkinMedica TNS® Advanced+ Serum
DRMTLGY Peptide Night Cream Versus SkinMedica TNS® Advanced+ Serum This anti-aging night moisturizer is formulated around Palmitoyl Tripeptide-1 and Palmitoyl Tripeptide-5 to soften the look of wrinkles. What's inside Key Ingredients Benefits Concerns Ingredie
DRMTLGY Peptide Night Cream Versus SkinMedica TNS® Advanced+ Serum
This anti-aging night moisturizer is formulated around Palmitoyl Tripeptide-1 and Palmitoyl Tripeptide-5 to soften the look of wrinkles.
What's inside
Key Ingredients
Benefits
Concerns
Ingredients Side-by-side
Water
Glyceryl Stearate
Propanediol
C12-15 Alkyl Benzoate
Glycerin
Isopropyl Palmitate
Undecane
Butyrospermum Parkii Butter
Caprylic/Capric Triglyceride
Cetyl Alcohol
Dimethicone
PEG-100 Stearate
Palmitoyl Dipeptide-5 Diaminobutyroyl Hydroxythreonine
Palmitoyl Tripeptide-1
Palmitoyl Tripeptide-5
Palmitoyl Tetrapeptide-7
Trifluoroacetyl Tripeptide-2
Tetradecyl Aminobutyroylvalylaminobutyric Urea Trifluoroacetate
Ceramide NP
Ceramide AP
Ceramide EOP
Phytosphingosine
Cholesterol
Tridecane
Allantoin
Tocopherol
Glycol Distearate
Potassium Cetyl Phosphate
Butylene Glycol
Ethylhexylglycerin
Acrylates/C10-30 Alkyl Acrylate Crosspolymer
Carbomer
Polysorbate 20
Dextran
Magnesium Chloride
Phenoxyethanol
Disodium EDTA
Sodium Hydroxide
Sodium Lauroyl Lactylate
Xanthan Gum
Water, Glyceryl Stearate, Propanediol, C12-15 Alkyl Benzoate, Glycerin, Isopropyl Palmitate, Undecane, Butyrospermum Parkii Butter, Caprylic/Capric Triglyceride, Cetyl Alcohol, Dimethicone, PEG-100 Stearate, Palmitoyl Dipeptide-5 Diaminobutyroyl Hydroxythreonine, Palmitoyl Tripeptide-1, Palmitoyl Tripeptide-5, Palmitoyl Tetrapeptide-7, Trifluoroacetyl Tripeptide-2, Tetradecyl Aminobutyroylvalylaminobutyric Urea Trifluoroacetate, Ceramide NP, Ceramide AP, Ceramide EOP, Phytosphingosine, Cholesterol, Tridecane, Allantoin, Tocopherol, Glycol Distearate, Potassium Cetyl Phosphate, Butylene Glycol, Ethylhexylglycerin, Acrylates/C10-30 Alkyl Acrylate Crosspolymer, Carbomer, Polysorbate 20, Dextran, Magnesium Chloride, Phenoxyethanol, Disodium EDTA, Sodium Hydroxide, Sodium Lauroyl Lactylate, Xanthan Gum
Pentylene Glycol
Human Neonatal Fibroblast Conditioned Media
Glycereth-7 Triacetate
Shea Butter Ethyl Esters
Ethoxydiglycol
Lactococcus Ferment Lysate
Whey Protein
Chlorella Vulgaris Extract
Saccharide Isomerate
Dimer Tripeptide-43
Vitis Vinifera Flower Cell Extract
Pyrus Malus Fruit Extract
Hydroxyacetophenone
Tocopheryl Acetate
Polyacrylate Crosspolymer-6
Polyacrylate-13
Polyisobutene
Sclerotium Gum
PEG-12 Dimethicone
Lecithin
Pullulan
Sodium Citrate
Aminomethyl Propanol
Water, Pentylene Glycol, Human Neonatal Fibroblast Conditioned Media, Glycereth-7 Triacetate, Shea Butter Ethyl Esters, Glycerin, Ethoxydiglycol, Lactococcus Ferment Lysate, Whey Protein, Chlorella Vulgaris Extract, Saccharide Isomerate, Dimer Tripeptide-43, Vitis Vinifera Flower Cell Extract, Pyrus Malus Fruit Extract, Hydroxyacetophenone, Tocopheryl Acetate, Propanediol, Xanthan Gum, Polyacrylate Crosspolymer-6, Polyacrylate-13, Polyisobutene, Sclerotium Gum, PEG-12 Dimethicone, Lecithin, Pullulan, Butylene Glycol, Sodium Citrate, Polysorbate 20, Aminomethyl Propanol, Disodium EDTA, Phenoxyethanol, Ethylhexylglycerin
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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.
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.
Disodium EDTA is a chelating agent. It grabs onto and deactivates metal ions that sneak into your products from water, packaging, or air.
This ingredient mainly works behind the scenes and helps with:
On top of that, this ingredient can counteract the effects of hard water by binding to the minerals in it.
One thing worth knowing is that Disodium EDTA has been shown to be a mild penetration enhancer. It can help other ingredients absorb into skin more effectively which can be a double-edged sword (great for actives, but can also make the active too strong if you have sensitive skin).
Clinical patch testing showed no significant skin irritation at typical use concentrations and minimal dermal absorption.
You'll most likely see this ingredient near the end of an ingredient list. It's typically found in concentrations less than 1%.
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.
Phenoxyethanol is one of the most widely used preservatives in skincare (and for good reason!).
It has a large spectrum of antimicrobial activity and especially effective bacteria, yeast, and mold while only having a weak effect on your skin's natural microbiome.
On a cellular level, it disrupts the cell membranes of microbes by poking holes that make the cell leak. This shuts down the chemical reactions the microbe needs to make energy so it can no longer survive.
Another perk of this ingredient is that it stays functional across a wide pH range (3-10).
You'll often see it paired with boosters like Ethylhexylglycerin; one study showed that a 1:9 ratio of Ethylhexylglycerin to Phenoxyethanol damages bacterial membranes as effectively as doubling the Phenoxyethanol concentration on its own.
Typical use concentrations range from 0.3-1% depending on the formula, and this ingredient is capped at 1% int the EU.
Safety-wise, the fear mongering does not hold up to the evidence. The EU's Scientific Committee on Consumer Safety and FDA consider it safe as a preservative at up to 1%, including for children of all ages.
Adverse systemic effects only showed up in animal studies at exposures roughly 200x higher than what people get from cosmetics. And despite its very widespread use, this ingredient is a rare sensitizer and allergic reactions are uncommon.
Polysorbate 20 is a gentle, water-soluble emulsifier and mild surfactant. It stops oil and water from separating to keep your formulas blended and stable.
It also acts as a mild penetration enhancer by helping active ingredients absorb slightly better.
The common safety discussion around this ingredient involves a manufacturing byproduct called 1,4-dioxane.
Trace amounts can form during production but the EU's Scientific Committee on Consumer Safety has concluded that levels at/below 10 ppm in finished products are safe (commercial products consistently fall within acceptable margins).
True allergic reactions are uncommon and the CIR Expert Panel has confirmed this ingredient to be safe as used in cosmetics.
Because it is derived from lauric acid, it may not be fungal acne safe.
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.
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.