Skin science article
DRMTLGY Needle-less Growth Factor Serum Versus Medik8 Liquid Peptides Advanced MP
DRMTLGY Needle-less Growth Factor Serum Versus Medik8 Liquid Peptides Advanced MP This anti-aging serum is formulated around Palmitoyl Tripeptide-1 and Palmitoyl Tetrapeptide-7 to soften the look of wrinkles. This anti-aging serum is formulated around Palmitoy
DRMTLGY Needle-less Growth Factor Serum Versus Medik8 Liquid Peptides Advanced MP
This anti-aging serum is formulated around Palmitoyl Tripeptide-1 and Palmitoyl Tetrapeptide-7 to soften the look of wrinkles.
This anti-aging serum is formulated around Palmitoyl Tripeptide-38 and Palmitoyl Tripeptide-5 to soften the look of wrinkles and refine skin texture.
What's inside
Key Ingredients
Benefits
Concerns
Ingredients Side-by-side
Water
Glycerin
Butylene Glycol
Pentylene Glycol
Maltodextrin
Coco-Caprylate/Caprate
Saccharide Isomerate
Sodium Hyaluronate
Palmitoyl Tripeptide-1
Oligopeptide-3
Oligopeptide-2
Oligopeptide-1
Hexapeptide-11
Palmitoyl Tripeptide-5
Palmitoyl Tetrapeptide-7
Ceramide NP
Folic Acid
Phytosphingosine
Ceramide AP
Ceramide EOP
Triheptanoin
Swertia Chirata Extract
Phenoxyethanol
Acrylates/C10-30 Alkyl Acrylate Crosspolymer
C9-12 Alkane
Polyurethane-100
Ethylhexylglycerin
Sodium Hydroxide
Lecithin
Trisodium Ethylenediamine Disuccinate
Acetyl Glutamine
1,2-Hexanediol
Tremella Fuciformis Sporocarp Extract
Hydrolyzed Hyaluronic Acid
Decyl Glucoside
Bacillus/Soybean Ferment Extract
Sodium Lauroyl Lactylate
Caprylyl Glycol
Carbomer
Polysorbate 20
Cholesterol
Xanthan Gum
Water, Glycerin, Butylene Glycol, Pentylene Glycol, Maltodextrin, Coco-Caprylate/Caprate, Saccharide Isomerate, Sodium Hyaluronate, Palmitoyl Tripeptide-1, Oligopeptide-3, Oligopeptide-2, Oligopeptide-1, Hexapeptide-11, Palmitoyl Tripeptide-5, Palmitoyl Tetrapeptide-7, Ceramide NP, Folic Acid, Phytosphingosine, Ceramide AP, Ceramide EOP, Triheptanoin, Swertia Chirata Extract, Phenoxyethanol, Acrylates/C10-30 Alkyl Acrylate Crosspolymer, C9-12 Alkane, Polyurethane-100, Ethylhexylglycerin, Sodium Hydroxide, Lecithin, Trisodium Ethylenediamine Disuccinate, Acetyl Glutamine, 1,2-Hexanediol, Tremella Fuciformis Sporocarp Extract, Hydrolyzed Hyaluronic Acid, Decyl Glucoside, Bacillus/Soybean Ferment Extract, Sodium Lauroyl Lactylate, Caprylyl Glycol, Carbomer, Polysorbate 20, Cholesterol, Xanthan Gum
Dimethicone
Dimethyl Isosorbide
Undecane
Arginine
Inulin
Microcrystalline Cellulose
Ceteareth-20
Tridecane
Tocopherol
Hydroxyacetophenone
Palmitoyl Tripeptide-38
Panthenol
Caprylic/Capric Triglyceride
Polyacrylate Crosspolymer-6
Pullulan
Tetrapeptide-21
Palmitoyl Tetrapeptide-10
Ammonium Polyacryloyldimethyl Taurate
Glyceryl Linoleate
Acetyl Hexapeptide-8
Pentapeptide-18
Arginine/Lysine Polypeptide
Sucrose Palmitate
Cetyl Palmitate
Copper Palmitoyl Heptapeptide-14
Heptapeptide-15 Palmitate
Benzotriazolyl Dodecyl P-Cresol
Polysorbate 80
Sorbitan Stearate
Carnosine
Sodium Metabisulfite
Dunaliella Salina Extract
Helianthus Annuus Seed Oil
Hydroxypropyl Cyclodextrin
Dimethicone/Vinyl Dimethicone Crosspolymer
Sodium Benzoate
Hydrogenated Lecithin
Pantolactone
Disodium EDTA
T-Butyl Alcohol
Potassium Sorbate
Citric Acid
Glyceryl Caprylate
Lactic Acid/Glycolic Acid Copolymer
Polyvinyl Alcohol
Phenylpropanol
Water, Glycerin, Dimethicone, Dimethyl Isosorbide, Butylene Glycol, Undecane, Arginine, Inulin, Microcrystalline Cellulose, Ceteareth-20, Tridecane, Tocopherol, Hydroxyacetophenone, Sodium Hyaluronate, Palmitoyl Tripeptide-38, Panthenol, Caprylic/Capric Triglyceride, Palmitoyl Tripeptide-5, Polyacrylate Crosspolymer-6, Palmitoyl Tripeptide-1, Pullulan, Tetrapeptide-21, Palmitoyl Tetrapeptide-10, Palmitoyl Tetrapeptide-7, Ammonium Polyacryloyldimethyl Taurate, Glyceryl Linoleate, Acetyl Hexapeptide-8, Pentapeptide-18, Oligopeptide-1, Arginine/Lysine Polypeptide, Sucrose Palmitate, Cetyl Palmitate, Phenoxyethanol, Ethylhexylglycerin, Carbomer, Copper Palmitoyl Heptapeptide-14, Heptapeptide-15 Palmitate, Benzotriazolyl Dodecyl P-Cresol, Polysorbate 80, Sorbitan Stearate, Polysorbate 20, Carnosine, Sodium Metabisulfite, Dunaliella Salina Extract, Helianthus Annuus Seed Oil, Hydroxypropyl Cyclodextrin, Dimethicone/Vinyl Dimethicone Crosspolymer, Sodium Benzoate, Hydrogenated Lecithin, Caprylyl Glycol, Pantolactone, Xanthan Gum, Disodium EDTA, T-Butyl Alcohol, Potassium Sorbate, Citric Acid, Glyceryl Caprylate, Lactic Acid/Glycolic Acid Copolymer, Polyvinyl Alcohol, Phenylpropanol
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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.
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).
Carbomer is a synthetic thickening and gelling agent. It's basically the ingredient that gives a lot of serums, gels, creams, and sunscreens their smooth, non-sticky texture.
Although legally permitted at very high levels, carbomers are normally used at concentrations below 1%.
It also needs to be neutralized to actually thicken, and because it is a large molecule, it doesn't really penetrate the skin barrier.
Allergy-wise, the risk is very low. Clinical studies show carbomers have low potential for skin irritation/sensitization even at concentrations up to 100%.
A 2024 UK study patch-tested 1,302 patients and found true allergy to the parent group of carbomer to be rare with no confirmed relevant reactions.
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.
Oligopeptide-1 is another name for Epidermal Growth Factor (EGF). In a formula, EGF works as a signaling ingredient.
EGF binds to receptors on your skin cells and tells keratinocytes/fibroblasts to divide, move, and rebuild the skin's support structure.
A 2012 open-label study on a barley-derived EGF serum reported statistically significant improvements in fine-lines, skin texture, pore size, and uneven skin tone, with changes showing up within the first month of 2x/daily use.
And a 2023 review found generally positive but modest results for growth factor products while pointing out that most trials are small, often industry-funded, and rarely test EGF on its own.
So, a fair summary of this ingredient would be "promising with real mechanistic backing, but not yet large-scale proof".
Concentration-wise, EGF is biologically active at very tiny amounts so finished products use it at low levels (think parts per million).
Raw material supplies usually sell a pre-diluted EGF solution and recommend adding roughly 1-5% of that solution to a formula.
Another practical catch: EGF is a fragile protein so it reacts badly to heat and the wrong pH. This just means it relies heavily on good packaging and a solid delivery system to stay active in a bottle.
Oligopeptide-1 and Sh-Oligopeptide-1. The "sh-" prefix just means "synthetic human" and it tells you that it's the lab grown version.
Palmitoyl Tetrapeptide-7 (formerly Palmitoyl Tetrapeptide-3) is a synthetic peptide. Its main job is to fight what researchers call "inflammaging".
"Inflammaging" is the slow, low-grade chronic inflammation that quietly breaks down collagen as we age.
This ingredient calms down a specific inflammation signal in your skin cells (called IL-6). When left unchecked, this signal triggers enzymes that break down collagen and elastin.
Clinical testing showed statistically significant improvements in:
Studies also found the more of this ingredient used, the more your skin produces Collagen I, fibronectin, and hyaluronic acid.
You'll likely see this ingredient paired with Palmitoyl Tripeptide-1 in the well-known Matrixyl 3000 complex for enhanced anti-aging effects.
A 3% concentration applied twice daily for two months showed meaningful skin rejuvenation results in clinical panels.
Fungal acne note: Usually a palmitic acid component can feed Malassezia in unbound form, but here is is covalently bonded to the peptide. This means it is very difficult for Malassezia to access, and therefore very unlikely to cause fungal acne.
Palmitoyl Tripeptide-1 (aka Pal-GHK) is a synthetic signal peptide made of three amino acids attached to palmitic acid.
That fatty acid attachment is the key: it boosts the peptide's ability to penetrate the skin barrier. This puts it closer to the dermal cells where it can actually make a difference.
Once there, it acts as a matrikine, a signaling peptide that prompts fibroblasts to produce more collagen, fibronectin, and hyaluronic acid.
In vitro studies show it can boost collagen production in skin cells even when UV-damaged skin samples were treated with it at a tiny concentration (it almost fully restored dermal collagen at 5ppm). It achieved this at 100x lower concentration than retinoic acid, which needed 500 ppm to do the same thing.
Human clinical data is promising, but modest:
A study of 23 female volunteers found a small but statistically significant increase (~4%) in skin thickness after treatment at 4 ppm.
A separate small trial of 15 women showed statistically significant reductions in wrinkle length, depth, and skin roughness after applying it twice daily for four weeks.
You'll likely see Pal-GHK paired with Palmitoyl Tetrapeptide-7 as part of the Matrixyl 3000 complex.
Palmitoyl Tripeptide-5 is a synthetic signal lipopeptide. This just means it is a three amino acid chain bolted onto a palmitic acid tail so it can slip through the skin's lipid barrier.
This peptide has a "build more, lose less" approach.
It's designed to mimic the collagen-stimulating activity in your skin by copying a snippet of one of your skin's own matrix proteins. This nudges fibroblasts into making more collagen while inhibiting the enzyme that breaks down skin protein.
The manufacturer's in vivo study of 45 volunteers found 1% and 2.5% reduced the appearance of wrinkles by 7% and 12% respectively, after using it twice daily for 84 days.
This is in the expected range for peptides; they're slow and cumulative actives and not overnight fixers.
Typical use levels range from 1-3% and this ingredient gets along with pretty much everything.
On the fungal acne front: Although palmitic acid sits in the chain length that Malassezia can feed on, this ingredient has it locked in an amine bond. This makes it hard for Malassezia to access as a source of food, and therefore fungal acne safe.
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.
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.