Drunk Elephant Protini Polypeptide Cream Versus Peter Thomas Roth PRO Strength Retinoid Peptide Serum
What's inside
What's inside
Key Ingredients
Benefits
Concerns
Ingredients Side-by-side
Water
Skin ConditioningDicaprylyl Carbonate
EmollientGlycerin
Humectant
Cetearyl Alcohol
Emollient
Cetearyl Olivate
Sorbitan Olivate
Emulsifying
Sclerocarya Birrea Seed Oil
Humectant
Bacillus/Folic Acid Ferment Filtrate Extract
Antioxidant
Nymphaea Alba Root Extract
Skin ConditioningSh-Oligopeptide-1
Skin Conditioning
Sh-Oligopeptide-2
Skin Conditioning
Sh-Polypeptide-1
Skin Conditioning
Sh-Polypeptide-9
Skin Conditioning
Sh-Polypeptide-11
Copper Palmitoyl Heptapeptide-14
Skin Conditioning
Heptapeptide-15 Palmitate
Skin Conditioning
Palmitoyl Tetrapeptide-7
Skin Conditioning
Palmitoyl Tripeptide-1
Skin Conditioning
Alanine
Masking
Arginine
Masking
Glycine
Buffering
Histidine
Humectant
Isoleucine
Skin ConditioningPhenylalanine
Masking
Proline
Skin Conditioning
Serine
Masking
Threonine
Valine
MaskingAcetyl Glutamine
Skin ConditioningCoconut Alkanes
Emollient
Coco-Caprylate/Caprate
Emollient
Sodium Hyaluronate
Humectant
Aspartic Acid
Masking
Linoleic Acid
Cleansing
Linolenic Acid
Cleansing
Lecithin
Emollient
Butylene Glycol
Humectant
Polyvinyl Alcohol
Sodium Lactate
Buffering
Sodium PCA
Humectant
PCA
Humectant
Sorbitan Isostearate
Emulsifying
Carbomer
Emulsion StabilisingPolysorbate 20
Emulsifying
Polysorbate 60
Emulsifying
Lactic Acid/Glycolic Acid Copolymer
Skin ConditioningHydroxyethyl Acrylate/Sodium Acryloyldimethyl Taurate Copolymer
Emulsion StabilisingXanthan Gum
EmulsifyingIsomalt
Humectant1,2-Hexanediol
Skin Conditioning
Caprylyl Glycol
Emollient
Chlorphenesin
Antimicrobial
Phenoxyethanol
Preservative
Tocopherol
Antioxidant
Sodium Benzoate
Masking
Phenylpropanol
Masking
Glyceryl Caprylate
EmollientSymphytum Officinale Callus Culture Extract
Skin ConditioningWater, Dicaprylyl Carbonate, Glycerin, Cetearyl Alcohol, Cetearyl Olivate, Sorbitan Olivate, Sclerocarya Birrea Seed Oil, Bacillus/Folic Acid Ferment Filtrate Extract, Nymphaea Alba Root Extract, Sh-Oligopeptide-1, Sh-Oligopeptide-2, Sh-Polypeptide-1, Sh-Polypeptide-9, Sh-Polypeptide-11, Copper Palmitoyl Heptapeptide-14, Heptapeptide-15 Palmitate, Palmitoyl Tetrapeptide-7, Palmitoyl Tripeptide-1, Alanine, Arginine, Glycine, Histidine, Isoleucine, Phenylalanine, Proline, Serine, Threonine, Valine, Acetyl Glutamine, Coconut Alkanes, Coco-Caprylate/Caprate, Sodium Hyaluronate, Aspartic Acid, Linoleic Acid, Linolenic Acid, Lecithin, Butylene Glycol, Polyvinyl Alcohol, Sodium Lactate, Sodium PCA, PCA, Sorbitan Isostearate, Carbomer, Polysorbate 20, Polysorbate 60, Lactic Acid/Glycolic Acid Copolymer, Hydroxyethyl Acrylate/Sodium Acryloyldimethyl Taurate Copolymer, Xanthan Gum, Isomalt, 1,2-Hexanediol, Caprylyl Glycol, Chlorphenesin, Phenoxyethanol, Tocopherol, Sodium Benzoate, Phenylpropanol, Glyceryl Caprylate, Symphytum Officinale Callus Culture Extract
C9-12 Alkane
SolventDimethicone
Emollient
Isononyl Isononanoate
EmollientDimethyl Isosorbide
SolventTrisiloxane
Skin Conditioning
Cyclopentasiloxane
Emollient
Polysilicone-11
Coco-Caprylate/Caprate
Emollient
Caprylic/Capric Triglyceride
Masking
Hydroxypinacolone Retinoate
Skin Conditioning
Palmitoyl Hexapeptide-14
Skin Conditioning
Ceramide NP
Skin Conditioning
Helianthus Annuus Seed Extract
Skin Conditioning
Hordeum Vulgare Extract
EmollientCucumis Sativus Extract
Skin Conditioning
Laminaria Ochroleuca Extract
Skin Conditioning
Zingiber Officinale Root Extract
Masking
Phytosteryl Canola Glycerides
Skin Conditioning
Sodium Hyaluronate
Humectant
Sodium PCA
Humectant
Squalane
Emollient
Tocopherol
Antioxidant
Lecithin
Emollient
Linoleic Acid
Cleansing
Oleic Acid
Emollient
Palmitic Acid
Emollient
Stearic Acid
Cleansing
Hydroxystearic Acid
Cleansing
Triolein
Skin Conditioning
Bisabolol
Antioxidant
Ethylhexyl Hydroxystearate
Emollient
Ethoxydiglycol
HumectantEthylhexylglycerin
Skin ConditioningWater
Skin ConditioningMica
Cosmetic ColorantPhenoxyethanol
Preservative
C9-12 Alkane, Dimethicone, Isononyl Isononanoate, Dimethyl Isosorbide, Trisiloxane, Cyclopentasiloxane, Polysilicone-11, Coco-Caprylate/Caprate, Caprylic/Capric Triglyceride, Hydroxypinacolone Retinoate, Palmitoyl Hexapeptide-14, Ceramide NP, Helianthus Annuus Seed Extract, Hordeum Vulgare Extract, Cucumis Sativus Extract, Laminaria Ochroleuca Extract, Zingiber Officinale Root Extract, Phytosteryl Canola Glycerides, Sodium Hyaluronate, Sodium PCA, Squalane, Tocopherol, Lecithin, Linoleic Acid, Oleic Acid, Palmitic Acid, Stearic Acid, Hydroxystearic Acid, Triolein, Bisabolol, Ethylhexyl Hydroxystearate, Ethoxydiglycol, Ethylhexylglycerin, Water, Mica, Phenoxyethanol
Reviews
Ingredients Explained
These ingredients are found in both products.
Ingredients higher up in an ingredient list are typically present in a larger amount.
Coco-Caprylate/Caprate is created from fatty coconut alcohol, caprylic acid, and capric acid.
It is a lightweight emollient. Emollients create a thin barrier on the skin to trap moisture in. This helps keep your skin hydrated and soft.
Once applied, Coco-Caprylate/Caprate is absorbed quickly and leaves a silky feel.
Coco-Caprylate/Caprate may not be fungal acne safe.
Learn more about Coco-Caprylate/CaprateLecithin is a term for a group of substances found in the cell membranes of plants, animals, and humans. They are made up of phospholipids.
Thanks to its amphiphilic structure (water-loving head and oil-loving tail), it is a true multitasker:
It plays well with most ingredients and is typically used at 0.1-1%. However, concentrations up to 50% have been reported in moisturizers.
Depending on the source of this ingredient, lecithin may not be fungal acne safe. This is because some sources of lecithin come from soybean oil, which may feed the malassezia yeast that causes fungal acne.
We recommend reaching out to the brand you are purchasing from to inquire about the source of their lecithin.
Learn more about LecithinLinoleic Acid is also known as Vitamin F. It is a fatty acid with emollient and skin conditioning properties. Our top layer of skin, or epidermis, contains high amounts of linoleic acid naturally.
Your body uses linoleic acid to build ceramides and prostaglandins. Ceramides keep your skin's barrier hydrated and strong while prosaglandins help control inflammation and healing. Needless to say, linoleic acid is crucial for having a strong skin barrier.
One study found applying linoleic acid rich sunflower oil to be more effective at repairing the skin barrier than oleic rich olive oil.
Linoleic acid is an essential fatty acid, meaning our bodies cannot create it on its own. We need to get linoleic acid through foods such as nuts and vegetable oils.
Acne-prone skin tends to have linoleic acid and high levels of oleic acid.
Linoleic acid can also help treat acne by softening sebum to prevent clogged pores. Another study found using 2.5% linoleic acid gel for 4 weeks showed a 25% reduction in small comedones.
This ingredient can also help lighten hyperpigmentation or sun spots by disrupting the melanin production process. It also helps your skin shed melanin pigment from your skin caused by UV exposure.
Due to its role in the production of the fatty acid prostaglandin, linoleic acid can also help reduce inflammation and support wound healing.
Linoleic acid is not always fungal-acne safe; it may trigger flare-ups in sensitive individuals.
Learn more about Linoleic AcidPhenoxyethanol is a preservative that has germicide, antimicrobial, and aromatic properties. Studies show that phenoxyethanol can prevent microbial growth. By itself, it has a scent that is similar to that of a rose.
It's often used in formulations along with Caprylyl Glycol to preserve the shelf life of products.
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.
Learn more about Sodium HyaluronateSodium PCA is the sodium salt of pyroglutamic acid. It is naturally occurring in our skin's natural moisturizing factors where it works to maintain hydration.
The PCA stands for pyrrolidone carboxylic acid, a natural amino acid derivative.
This ingredient has skin conditioning, anti-inflammatory, and humectant properties. Humectants help hydrate your skin by drawing moisture from the air. This helps keep your skin moisturized.
Learn more about Sodium PCATocopherol is a fat-soluble antioxidant known as Vitamin E.
You'll find this ingredient in the vast majority of skincare (for good reason). It works to neutralize free radicals, or unstable molecules generated by UV exposure, pollution, and other environmental stressors, before they can cause oxidative damage to your skin cells.
Topically applied tocopherol has been shown to protect against UV damage by ramping up the skin's own natural defense enzymes.
It also acts as a skin conditioning agent; some studies show that regular topical use can improve the skin's water-binding capacity over 2-4 weeks.
This ingredient is especially loved for being a team player. When combined with Vitamin C, the photoprotective effect of both ingredients roughly doubles and the combo also helps reduce UV-induced DNA damage.
This ingredient has some brightening potential but it's more of a prevention ingredient than spot-fader. Cell studies show it can slow down melanin production but it's worth noting that it's not the most powerful brightener out there.
In formulations, it also serves as a stabilizer that helps protect other oxidation-prone ingredients from degrading.
Concentrations usually range from 0.1-1% in most leave-on products.
Learn more about TocopherolWater. 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!
Learn more about Water
