Skin science article
Allies of Skin Multi Peptides & GF Advanced Lifting Serum Versus SkinCeuticals Sérum A.G.E. Interrupter Ultra
Allies of Skin Multi Peptides & GF Advanced Lifting Serum Versus SkinCeuticals Sérum A.G.E. Interrupter Ultra This anti-aging serum is formulated around Sh-Oligopeptide-1 and Dipeptide Diaminobutyroyl Benzylamide Diacetate to soften the look of wrinkles. This
Allies of Skin Multi Peptides & GF Advanced Lifting Serum Versus SkinCeuticals Sérum A.G.E. Interrupter Ultra
This anti-aging serum is formulated around Sh-Oligopeptide-1 and Dipeptide Diaminobutyroyl Benzylamide Diacetate to soften the look of wrinkles.
This anti-aging serum is formulated around Ectoin and Adenosine to soften the look of wrinkles and strengthen the skin barrier.
What's inside
Key Ingredients
Benefits
Concerns
Ingredients Side-by-side
Water
Glycerin
Heptyl Glucoside
Isodecyl Neopentanoate
Acacia Senegal Gum
Polysorbate 20
Centella Asiatica Leaf Extract
Helianthus Annuus Seed Oil
Tocopherol
Phospholipids
Glycolipids
Dimethyl Sulfone
Ornithine
Lecithin
Hydrogenated Lecithin
Copper Lysinate/Prolinate
Methylglucoside Phosphate
Crocus Chrysanthus Bulb Extract
Sh-Oligopeptide-1
Dipeptide Diaminobutyroyl Benzylamide Diacetate
Pentapeptide-18
Pentapeptide-48
Butyrospermum Parkii Butter
Leuconostoc/Radish Root Ferment Filtrate
Caprylic/Capric Triglyceride
Ethylhexylglycerin
C12-15 Alkyl Benzoate
Sclerotium Gum
Xanthan Gum
Caprylyl Glycol
Levulinic Acid
P-Anisic Acid
Sodium Gluconate
Propanediol
Maltodextrin
Citric Acid
Sodium Hydroxide
Heptanol
Phenethyl Alcohol
Phenoxyethanol
Water, Glycerin, Heptyl Glucoside, Isodecyl Neopentanoate, Acacia Senegal Gum, Polysorbate 20, Centella Asiatica Leaf Extract, Helianthus Annuus Seed Oil, Tocopherol, Phospholipids, Glycolipids, Dimethyl Sulfone, Ornithine, Lecithin, Hydrogenated Lecithin, Copper Lysinate/Prolinate, Methylglucoside Phosphate, Crocus Chrysanthus Bulb Extract, Sh-Oligopeptide-1, Dipeptide Diaminobutyroyl Benzylamide Diacetate, Pentapeptide-18, Pentapeptide-48, Butyrospermum Parkii Butter, Leuconostoc/Radish Root Ferment Filtrate, Caprylic/Capric Triglyceride, Ethylhexylglycerin, C12-15 Alkyl Benzoate, Sclerotium Gum, Xanthan Gum, Caprylyl Glycol, Levulinic Acid, P-Anisic Acid, Sodium Gluconate, Propanediol, Maltodextrin, Citric Acid, Sodium Hydroxide, Heptanol, Phenethyl Alcohol, Phenoxyethanol
Propylene Glycol
Hydroxypropyl Tetrahydropyrantriol
Dimethicone
Cetearyl Isononanoate
Isohexadecane
PEG/PPG/Polybutylene Glycol-8/5/3 Glycerin
Diisopropyl Sebacate
Vp/Va Copolymer
Hydroxyacetophenone
Polysilicone-11
Cellulose
Acrylates/C10-30 Alkyl Acrylate Crosspolymer
Panthenol
Rhamnose
Ectoin
Cassia Alata Leaf Extract
Sorbitol
Vaccinium Myrtillus Fruit Extract
Adenosine
Trisodium Ethylenediamine Disuccinate
Punica Granatum Fruit Extract
Gentiana Lutea Root Extract
Hydrolyzed Soy Protein
Sodium Benzoate
Potassium Sorbate
Parfum
Water, Propylene Glycol, Hydroxypropyl Tetrahydropyrantriol, Glycerin, Dimethicone, Cetearyl Isononanoate, Isohexadecane, PEG/PPG/Polybutylene Glycol-8/5/3 Glycerin, Diisopropyl Sebacate, Vp/Va Copolymer, Hydroxyacetophenone, Phenoxyethanol, Polysilicone-11, Cellulose, Hydrogenated Lecithin, Xanthan Gum, Propanediol, Acrylates/C10-30 Alkyl Acrylate Crosspolymer, Caprylyl Glycol, Panthenol, Rhamnose, Ectoin, Cassia Alata Leaf Extract, Maltodextrin, Sorbitol, Vaccinium Myrtillus Fruit Extract, Sodium Hydroxide, Adenosine, Trisodium Ethylenediamine Disuccinate, Punica Granatum Fruit Extract, Gentiana Lutea Root Extract, Hydrolyzed Soy Protein, Sodium Benzoate, Potassium Sorbate, Citric Acid, Parfum
Reviews
Be the first to review
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).
Citric Acid is an alpha hydroxy acid (AHA) naturally found in citrus fruits like oranges, lemons, and limes.
Like other AHAs, citric acid can exfoliate skin by breaking down the bonds that hold dead skin cells together. This helps reveal smoother and brighter skin underneath.
However, this exfoliating effect only happens at high concentrations (20%) which can be hard to find in cosmetic products.
Due to this, citric acid is usually included in small amounts as a pH adjuster. This helps keep products slightly more acidic and compatible with skin's natural pH.
In skincare formulas, citric acid can:
While it can provide some skin benefits, research shows lactic acid and glycolic acid are generally more effective and less irritating exfoliants.
Most citric acid used in skincare today is made by fermenting sugars (usually from molasses). This synthetic version is identical to the natural citrus form but easier to stabilize and use in formulations.
Rosacea skin has a lower threshold for acids generally, with 62.5% of rosacea subjects in one study reacting to lactic acid in a sting test. This is why we mark citric acid as a potential rosacea trigger.
However, this ingredient shows up as a pH adjuster or chelator at roughly 0.1-1% in many products. These low levels are unlikely to be an issue for rosacea skin and becomes a potential trigger at exfoliating concentrations (20%). Because everybody's skin is unique, we recommend a patch test if you are unsure.
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.
Hydrogenated Lecithin is a more stable version of lecithin.
It's made by taking lecithin (a phospholipid commonly found in soybeans and egg yolks) and hydrogenating it. This just means the unsaturated fatty acids are turned into saturated ones so they don't go bad as easily.
This ingredient is an emollient, emulsifier, and penetration enhancer. As an emollient, it helps soften and hydrate skin by trapping moisture within. As an emulsifier, it prevents oil and water ingredients from separating.
Hydrogenated Lecithin can form tiny spherical structures made of phospholipid bilayers called liposomes. These liposomes are able to capture compounds inside their structure and deliver them through the skin barrier.
Because phospholipids are a natural component of our cell membranes, this ingredient is inherently compatible with skin.
A 2021 study found lecithin-based surfactants were less harsh and more tolerable comared to Sodium Lauryl Sulfate (SLS).
Maltodextrin is a plant-derived carbohydrate made by breaking down starch (usually from corn, potato, or rice). In cosmetic formulas, it's a multitasking absorbent, emulsion stabilizer, and skin conditioner.
This ingredient is mostly used to stabilize emulsions and improve the powdery, non-greasy feel of products (like dry shampoos).
Safety-wise, this ingredient is pretty solid; it's even recognized as a food additive. Both animal and clinical studies found no adverse effects at the levels used in cosmetics.
Industry data shows this ingredient is used up to 45.7% in spray products and up to 33% in powder products.
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.
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 Hydroxide is also known as lye or caustic soda. It is used to adjust the pH of products; many ingredients require a specific pH to be effective.
In small amounts, sodium hydroxide is considered safe to use. However, large amounts may cause chemical burns due to its high alkaline.
Your skin has a natural pH and acid mantle. This acid mantle helps prevent harmful bacteria from breaking through. The acid mantle also helps keep your skin hydrated.
"Alkaline" refers to a high pH level. A low pH level would be considered acidic.
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.