Stratia Interface Cream Versus Medik8 Liquid Peptides
Overview
What they are
These products are both cruelty-free . They have a total of 13 ingredients in common
Cool Features
They both contain AHA, hyaluronic acid and peptides
Suited For
They're both likely to be good for anti aging, dry skin, brightening skin, sensitive skin, oily skin, reducing pores, scar healing and better texture
Free From
They both do not contain any harsh alcohols, common allergens or sulfates
We independently verify ingredients, and our claims are backed by peer-reviewed research. Spot a product that needs an update? Let us know.
Ingredient Info
Stratia Interface Cream 35 ingredients
Medik8 Liquid Peptides 33 ingredients
About this product
About this product
At a glance
Click on any of the items below to learn more
Stratia Interface Cream 35 ingredients
Medik8 Liquid Peptides 33 ingredients
Key Ingredients
Benefits
Concerns
Key Ingredients
Benefits
Concerns
Ingredients Side-by-side
Water
Skin ConditioningGlycerin
Humectant
Squalane
Emollient
Hydrogenated Polydecene
EmollientPanthenol
Skin Conditioning
Ethoxydiglycol
HumectantDimethicone
Emollient
Rosa Canina Fruit Oil
Emollient
Cetearyl Alcohol
Emollient
Acetyl Glutamine
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
Glycyrrhiza Glabra Root Extract
Bleaching
Allantoin
Skin Conditioning
Caprylyl Glycol
EmollientButylene Glycol
Humectant
Sodium Hyaluronate
Humectant
Glycolic Acid
Buffering
Lactic Acid/Glycolic Acid Copolymer
Skin ConditioningDisodium EDTA
Polyacrylamide
Potassium Sorbate
Preservative
Sodium Benzoate
Masking
C13-14 Isoparaffin
Emollient
Polyvinyl Alcohol
Methylparaben
Preservative
Propylparaben
Preservative
Laureth-7
EmulsifyingDiazolidinyl Urea
Preservative
Xanthan Gum
EmulsifyingWater, Glycerin, Squalane, Hydrogenated Polydecene, Panthenol, Ethoxydiglycol, Dimethicone, Rosa Canina Fruit Oil, Cetearyl Alcohol, Acetyl Glutamine, Sh-Oligopeptide-1, Sh-Oligopeptide-2, Sh-Polypeptide-1, Sh-Polypeptide-9, Sh-Polypeptide-11, Copper Palmitoyl Heptapeptide-14, Heptapeptide-15 Palmitate, Glycyrrhiza Glabra Root Extract, Allantoin, Caprylyl Glycol, Butylene Glycol, Sodium Hyaluronate, Glycolic Acid, Lactic Acid/Glycolic Acid Copolymer, Disodium EDTA, Polyacrylamide, Potassium Sorbate, Sodium Benzoate, C13-14 Isoparaffin, Polyvinyl Alcohol, Methylparaben, Propylparaben, Laureth-7, Diazolidinyl Urea, Xanthan Gum
Water
Skin ConditioningGlycerin
Humectant
Butylene Glycol
Humectant
Inulin
Skin ConditioningSodium Hyaluronate
Humectant
Panthenol
Skin Conditioning
Alpha-Glucan Oligosaccharide
CleansingCarnosine
Skin ConditioningCarbomer
Emulsion StabilisingPolysorbate 20
Emulsifying
Caprylyl Glycol
EmollientPhenoxyethanol
Preservative
Hydroxypropyl Cyclodextrin
MaskingDunaliella Salina Extract
Skin ConditioningEthylhexylglycerin
Skin ConditioningCitric Acid
Buffering
Palmitoyl Tripeptide-5
Skin Conditioning
Sodium Benzoate
Masking
Acetyl Hexapeptide-8
Humectant
Tetrapeptide-21
Skin Conditioning
Pentapeptide-18
Skin Conditioning
Palmitoyl Tripeptide-1
Skin Conditioning
Pantolactone
HumectantPalmitoyl Tripeptide-38
Skin Conditioning
Palmitoyl Tetrapeptide-7
Skin Conditioning
Glyceryl Caprylate
EmollientLactic Acid/Glycolic Acid Copolymer
Skin ConditioningPolyvinyl Alcohol
Phenylpropanol
Masking
Copper Palmitoyl Heptapeptide-14
Skin Conditioning
Heptapeptide-15 Palmitate
Skin Conditioning
Potassium Sorbate
Preservative
Xanthan Gum
EmulsifyingWater, Glycerin, Butylene Glycol, Inulin, Sodium Hyaluronate, Panthenol, Alpha-Glucan Oligosaccharide, Carnosine, Carbomer, Polysorbate 20, Caprylyl Glycol, Phenoxyethanol, Hydroxypropyl Cyclodextrin, Dunaliella Salina Extract, Ethylhexylglycerin, Citric Acid, Palmitoyl Tripeptide-5, Sodium Benzoate, Acetyl Hexapeptide-8, Tetrapeptide-21, Pentapeptide-18, Palmitoyl Tripeptide-1, Pantolactone, Palmitoyl Tripeptide-38, Palmitoyl Tetrapeptide-7, Glyceryl Caprylate, Lactic Acid/Glycolic Acid Copolymer, Polyvinyl Alcohol, Phenylpropanol, Copper Palmitoyl Heptapeptide-14, Heptapeptide-15 Palmitate, Potassium Sorbate, Xanthan Gum
Ingredients Explained
These ingredients are found in both products.
Ingredients higher up in an ingredient list are typically present in a larger amount.
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. Stay hydrated!
Learn more about WaterGlycerin is already naturally found in your skin. It helps moisturize and protect your skin.
A study from 2016 found glycerin to be more effective as a humectant than AHAs and hyaluronic acid.
As a humectant, it helps the skin stay hydrated by pulling moisture to your skin. The low molecular weight of glycerin allows it to pull moisture into the deeper layers of your skin.
Hydrated skin improves your skin barrier; Your skin barrier helps protect against irritants and bacteria.
Glycerin has also been found to have antimicrobial and antiviral properties. Due to these properties, glycerin is often used in wound and burn treatments.
In cosmetics, glycerin is usually derived from plants such as soybean or palm. However, it can also be sourced from animals, such as tallow or animal fat.
This ingredient is organic, colorless, odorless, and non-toxic.
Glycerin is the name for this ingredient in American English. British English uses Glycerol/Glycerine.
Learn more about GlycerinPanthenol is a common ingredient that helps hydrate and soothe the skin. It is found naturally in our skin and hair.
There are two forms of panthenol: D and L.
D-panthenol is also known as dexpanthenol. Most cosmetics use dexpanthenol or a mixture of D and L-panthenol.
Panthenol is famous due to its ability to go deeper into the skin's layers. Using this ingredient has numerous pros (and no cons):
Like hyaluronic acid, panthenol is a humectant. Humectants are able to bind and hold large amounts of water to keep skin hydrated.
This ingredient works well for wound healing. It works by increasing tissue in the wound and helps close open wounds.
Once oxidized, panthenol converts to pantothenic acid. Panthothenic acid is found in all living cells.
This ingredient is also referred to as pro-vitamin B5.
Learn more about PanthenolThis peptide is the copper salt and formed by reacting palmitic acid and heptapeptide-14.
This uses a high-tech delivery system called The Cosmetic Drone, where the peptide is enclosed in a shell made from Lactic Acid/Glycolic Acid Copolymer and Polyvinyl Alcohol. Another peptide on the outside guides the capsule to fibroblast cells, the collagen-producing cells in the skin.
Once it reaches the fibroblasts, Copper Palmitoyl Heptapeptide-14 boosts the production of collagen and elastin.
This advanced system works at an incredibly low concentration of just 0.001%.
Learn more about Copper Palmitoyl Heptapeptide-14Heptapeptide-15 Palmitate isn't fungal acne safe and is a peptide.
Caprylyl Glycol is a humectant and emollient, meaning it attracts and preserves moisture.
It is a common ingredient in many products, especially those designed to hydrate skin. The primary benefits are retaining moisture, skin softening, and promoting a healthy skin barrier.
Though Caprylyl Glycol is an alcohol derived from fatty acids, it is not the kind that can dry out skin.
This ingredient is also used as a preservative to extend the life of products. It has slight antimicrobial properties.
Learn more about Caprylyl GlycolButylene Glycol (or BG) is used within cosmetic products for a few different reasons:
- It is a solvent, meaning that it helps to dissolve other ingredients. This also enhances the absorption of the product into one's skin.
- It is a humectant, which means that it helps attract moisture into the skin.
- It helps improve product application.
- It has mild preservative properties.
Overall, Butylene Glycol is a safe and well-rounded ingredient that works well with other ingredients.
Sodium Hyaluronate is hyaluronic acid's salt form. It is commonly derived from the sodium salt of hyaluronic acid.
Like hyaluronic acid, it is great at holding water and acts as a humectant. This makes it a great skin hydrating ingredient.
Sodium Hyaluronate is naturally occurring in our bodies and is mostly found in eye fluid and joints.
These are some other common types of Hyaluronic Acid:
Learn more about Sodium HyaluronateThis ingredient is a combination of two AHAs, lactic acid and glycolic acid. It has exfoliating properties
Potassium Sorbate is a preservative used to prevent yeast and mold in products. It is commonly found in both cosmetic and food products.
This ingredient comes from potassium salt derived from sorbic acid. Sorbic acid is a natural antibiotic and effective against fungus.
Both potassium sorbate and sorbic acid can be found in baked goods, cheeses, dried meats, dried fruit, ice cream, pickles, wine, yogurt, and more.
You'll often find this ingredient used with other preservatives.
Learn more about Potassium SorbateSodium Benzoate is a preservative. It's used in both cosmetic and food products to inhibit the growth of mold and bacteria. It is typically produced synthetically.
Both the US FDA and EU Health Committee have approved the use of sodium benzoate. In the US, levels of 0.1% (of the total product) are allowed.
Sodium benzoate works as a preservative by inhibiting the growth of bacteria inside of cells. It prevents the cell from fermenting a type of sugar using an enzyme called phosphofructokinase.
It is the salt of benzoic acid. Foods containing sodium benzoate include soda, salad dressings, condiments, fruit juices, wines, and snack foods.
Studies for using ascorbic acid and sodium benzoate in cosmetics are lacking, especially in skincare routines with multiple steps.
We always recommend speaking with a professional, such as a dermatologist, if you have any concerns.
Learn more about Sodium BenzoateWe don't have a description for Polyvinyl Alcohol yet.
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.
Learn more about Xanthan GumIngredient Ratings
Here's what our community thinks of the ingredients in these products.
When to use
Stratia Interface Cream 35 ingredients
Medik8 Liquid Peptides 33 ingredients
Reviews
Here's what our community thinks
Stratia Interface Cream 35 ingredients
I’ve only purchased this product once, and while I like it, it didn’t make the cut because I’ve since made changes to my regular routine and I already had something similar. That said, I enjoyed its lightweight moisturizing formula—it layered perfectly under makeup and was great when applied over Retinal, which my skin loved.
The downside for me is the packaging. The pump container makes it Show more
Medik8 Liquid Peptides 33 ingredients
It’s water based and firms my skin. My skin loves it. I also like Bare Minerals Herb Serum as it has niacinamide and my skin loves that too. Medik8 Crystal Retinal 3 and 6 also. Elemis pro rad cream wash and dynamic resurf and kefir mist
I love this product. It has become a staple in my routine. It's such a shame they increased the price, but I rotate between this one and the ordinary multipeptide with copper. It's the perfect consistency and it does not get sticky, but it needs to be applied scarcely (around 4 drops). My skin loves this serum and it makes the skin hydrated without creating any excess oil. It does not trigger any Show more
