Updated on June 20, 2024
Overview
What they are
These products are both cruelty-free and reef safe serums. They have a total of 5 ingredients in common
Cool Features
They both contain retinoid
Suited For
They're both likely to be good for fighting acne, anti aging, dry skin, brightening skin, sensitive skin, oily skin, reducing pores, scar healing, dark spots and better texture
Free From
They both do not contain any harsh alcohols, common allergens, parabens or sulfates
What's Inside
They both contain silicones
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
SLMD Retinol Serum 29 ingredients
COSRX Real Fit Retinol Serum 23 ingredients
About this product
About this product
At a glance
Click on any of the items below to learn more
SLMD Retinol Serum 29 ingredients
COSRX Real Fit Retinol Serum 23 ingredients
Key Ingredients
Benefits
Concerns
Key Ingredients
Benefits
Concerns
Ingredients Side-by-side
Water
Skin ConditioningCyclopentasiloxane
Emollient
Butylene Glycol
Humectant
Dipropylene Glycol
MaskingGlycerin
Humectant
PEG-12 Dimethicone Crosspolymer
EmulsifyingDimethicone/Vinyl Dimethicone Crosspolymer
Skin ConditioningDimethiconol
Emollient
Dimethicone
Emollient
Laureth-23
CleansingLaureth-4
Emulsifying
Pentylene Glycol
Skin ConditioningAcetyl Carboxymethyl Cocoyl Glycine
Retinyl Sunflowerseedate
Skin Conditioning
Polysorbate 80
Emulsifying
Retinol
Skin Conditioning
Myristoyl Nonapeptide-3
Skin Conditioning
Myristoyl Pentapeptide-17
Skin Conditioning
Myristoyl Tetrapeptide-13
Skin Conditioning
Lysophosphatidic Acid
Skin Conditioning
Ascorbyl Linoleate
Antioxidant
Ethyl Linoleate
Emollient
Ethyl Formate
Perfuming
Sodium Hyaluronate
Humectant
Allantoin
Skin Conditioning
Panthenol
Skin Conditioning
Sodium Ascorbyl Phosphate
Antioxidant
Polyaminopropyl Biguanide
Preservative
Tromethamine
BufferingWater, Cyclopentasiloxane, Butylene Glycol, Dipropylene Glycol, Glycerin, PEG-12 Dimethicone Crosspolymer, Dimethicone/Vinyl Dimethicone Crosspolymer, Dimethiconol, Dimethicone, Laureth-23, Laureth-4, Pentylene Glycol, Acetyl Carboxymethyl Cocoyl Glycine, Retinyl Sunflowerseedate, Polysorbate 80, Retinol, Myristoyl Nonapeptide-3, Myristoyl Pentapeptide-17, Myristoyl Tetrapeptide-13, Lysophosphatidic Acid, Ascorbyl Linoleate, Ethyl Linoleate, Ethyl Formate, Sodium Hyaluronate, Allantoin, Panthenol, Sodium Ascorbyl Phosphate, Polyaminopropyl Biguanide, Tromethamine
Calendula Officinalis Extract
Skin ConditioningButylene Glycol
Humectant
Glycerin
Humectant
Helianthus Annuus Seed Oil
Emollient
1,2-Hexanediol
Skin ConditioningPolysorbate 60
Emulsifying
Betaine
Humectant
Dimethicone
Emollient
Cetearyl Alcohol
Emollient
Retinyl Palmitate
Skin Conditioning
Cetearyl Olivate
Panthenol
Skin Conditioning
Arachis Hypogaea Oil
Skin Conditioning
Sorbitan Olivate
Emulsifying
Allantoin
Skin Conditioning
Tocopheryl Acetate
Antioxidant
Hydroxyethyl Acrylate/Sodium Acryloyldimethyl Taurate Copolymer
Emulsion StabilisingHydroxyethylcellulose
Emulsion StabilisingXanthan Gum
EmulsifyingJuniperus Mexicana Oil
Masking
Ethylhexylglycerin
Skin ConditioningAdenosine
Skin Conditioning
Tocopherol
Antioxidant
Calendula Officinalis Extract, Butylene Glycol, Glycerin, Helianthus Annuus Seed Oil, 1,2-Hexanediol, Polysorbate 60, Betaine, Dimethicone, Cetearyl Alcohol, Retinyl Palmitate, Cetearyl Olivate, Panthenol, Arachis Hypogaea Oil, Sorbitan Olivate, Allantoin, Tocopheryl Acetate, Hydroxyethyl Acrylate/Sodium Acryloyldimethyl Taurate Copolymer, Hydroxyethylcellulose, Xanthan Gum, Juniperus Mexicana Oil, Ethylhexylglycerin, Adenosine, Tocopherol
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:
- 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.
Glycerin 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 GlycerinDimethicone is a type of synthetic silicone created from natural materials such as quartz.
What it does:
Dimethicone comes in different viscosities:
Depending on the viscosity, dimethicone has different properties.
Ingredients lists don't always show which type is used, so we recommend reaching out to the brand if you have questions about the viscosity.
This ingredient is unlikely to cause irritation because it does not get absorbed into skin. However, people with silicone allergies should be careful about using this ingredient.
Note: Dimethicone may contribute to pilling. This is because it is not oil or water soluble, so pilling may occur when layered with products. When mixed with heavy oils in a formula, the outcome is also quite greasy.
Learn more about DimethiconeAllantoin plays a role in soothing and moisturizing the skin. Because of this, it is often added to products with strong active ingredients.
Some studies have shown this ingredient can promote wound healing with higher concentrations.
Allantoin is derived from the comfrey plant but produced synthetically for cosmetic products to ensure purity.
Learn more about AllantoinPanthenol 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 PanthenolIngredient Ratings
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