Principia Serum Facial Rn-0,3 Versus COSRX The Retinol 0.1 Cream
Updated on November 01, 2024
Overview
What they are
These products are both cruelty-free and reef safe . They have a total of 5 ingredients in common
Cool Features
They both contain retinoid and Vitamin E
Suited For
They're both likely to be good for fighting acne, anti aging, brightening skin, oily skin, reducing pores, scar healing, dark spots and better texture
Free From
They both do not contain any harsh alcohols, common allergens, fragrances, parabens 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
Principia Serum Facial Rn-0,3 17 ingredients
COSRX The Retinol 0.1 Cream 51 ingredients
About this product
About this product
At a glance
Click on any of the items below to learn more
Principia Serum Facial Rn-0,3 17 ingredients
COSRX The Retinol 0.1 Cream 51 ingredients
Key Ingredients
Benefits
Concerns
Key Ingredients
Benefits
Concerns
Ingredients Side-by-side
Water
Skin ConditioningPolyacrylate Crosspolymer-6
Emulsion StabilisingSodium Gluconate
Skin ConditioningPropanediol
SolventC15-19 Alkane
SolventArachidyl Alcohol
EmollientBehenyl Alcohol
Emollient
Arachidyl Glucoside
EmulsifyingTocopheryl Acetate
Antioxidant
Retinol
Skin Conditioning
Polysorbate 20
Emulsifying
BHT
Antioxidant
BHA
Antioxidant
Sodium Diethylenetriamine Pentamethylene Phosphonate
Sodium Gluceptate
Phenoxyethanol
Preservative
Caprylyl Glycol
EmollientWater
Skin ConditioningCaprylic/Capric Triglyceride
MaskingPropanediol
SolventGlycerin
Humectant
Tocopheryl Acetate
Antioxidant
Cetearyl Alcohol
Emollient
Butyrospermum Parkii Butter
Skin Conditioning
Panthenol
Skin Conditioning
Trehalose
HumectantGlycine Soja Oil
Emollient
Ammonium Acryloyldimethyltaurate/Vp Copolymer
Dimethicone
Emollient
Glyceryl Polymethacrylate
Helianthus Annuus Seed Oil
Emollient
Polyglyceryl-10 Stearate
Skin Conditioning
Hydrogenated Lecithin
EmulsifyingHydroxyethyl Acrylate/Sodium Acryloyldimethyl Taurate Copolymer
Emulsion StabilisingCarbomer
Emulsion StabilisingTromethamine
BufferingGlyceryl Stearate
Emollient
Polysilicone-11
Sodium Sulfite
Preservative
Tocopherol
Antioxidant
Daucus Carota Sativa Root Extract
Skin ConditioningAllantoin
Skin Conditioning
Glyceryl Caprylate
EmollientOryza Sativa Bran Wax
Skin Conditioning
Retinol
Skin Conditioning
Tocotrienols
Skin ConditioningStearic Acid
Cleansing
Polyglyceryl-3 Methylglucose Distearate
Emulsifying
Palmitic Acid
Emollient
Disodium EDTA
Ethylhexylglycerin
Skin ConditioningAdenosine
Skin Conditioning
Sorbitan Isostearate
Emulsifying
Elaeis Guineensis Oil
Emollient
BHT
Antioxidant
Beta-Carotene
Skin ConditioningMyristic Acid
Cleansing
Lauric Acid
Cleansing
3-O-Ethyl Ascorbic Acid
Skin Conditioning
Ascorbic Acid
Antioxidant
Glutathione
Limnanthes Alba Seed Oil
Skin Conditioning
Sodium Hyaluronate
Humectant
1,2-Hexanediol
Skin ConditioningHydrolyzed Hyaluronic Acid
Humectant
Sodium Hyaluronate Crosspolymer
Humectant
Hyaluronic Acid
Humectant
Sodium Acetylated Hyaluronate
Humectant
Water, Caprylic/Capric Triglyceride, Propanediol, Glycerin, Tocopheryl Acetate, Cetearyl Alcohol, Butyrospermum Parkii Butter, Panthenol, Trehalose, Glycine Soja Oil, Ammonium Acryloyldimethyltaurate/Vp Copolymer, Dimethicone, Glyceryl Polymethacrylate, Helianthus Annuus Seed Oil, Polyglyceryl-10 Stearate, Hydrogenated Lecithin, Hydroxyethyl Acrylate/Sodium Acryloyldimethyl Taurate Copolymer, Carbomer, Tromethamine, Glyceryl Stearate, Polysilicone-11, Sodium Sulfite, Tocopherol, Daucus Carota Sativa Root Extract, Allantoin, Glyceryl Caprylate, Oryza Sativa Bran Wax, Retinol, Tocotrienols, Stearic Acid, Polyglyceryl-3 Methylglucose Distearate, Palmitic Acid, Disodium EDTA, Ethylhexylglycerin, Adenosine, Sorbitan Isostearate, Elaeis Guineensis Oil, BHT, Beta-Carotene, Myristic Acid, Lauric Acid, 3-O-Ethyl Ascorbic Acid, Ascorbic Acid, Glutathione, Limnanthes Alba Seed Oil, Sodium Hyaluronate, 1,2-Hexanediol, Hydrolyzed Hyaluronic Acid, Sodium Hyaluronate Crosspolymer, Hyaluronic Acid, Sodium Acetylated Hyaluronate
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 WaterPropanediol is an all-star ingredient. It softens, hydrates, and smooths the skin.Â
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.
Learn more about PropanediolTocopheryl Acetate is AKA Vitamin E. It is an antioxidant and protects your skin from free radicals. Free radicals damage the skin by breaking down collagen.
One study found using Tocopheryl Acetate with Vitamin C decreased the number of sunburned cells.
Tocopheryl Acetate is commonly found in both skincare and dietary supplements.
Learn more about Tocopheryl AcetateRetinol is a gold-standard ingredient for anti-aging. It is a form of Vitamin A and belongs to the class of retinoids that also includes tretinoin.
Why is retinol famous?
It has the most scientific studies backing up its skin benefits out of all the non-prescription ingredients.
Retinol is proven to:
This is why retinol is effective at removing wrinkles, fading dark spots, treating acne, and reducing the appearance of pores.
Studies show retinol is less effective when exposed to UV. Be sure to look for appropriate packaging to keep your retinol potent (similar to Vitamin C).
Using retinol or any retinoids will increase sun-sensitivity in the first few months. Though studies show retinoids increase your skin's natural SPF with continuous use, it is best to always wear sunscreen and sun-protection.
We recommend speaking with a medical professional about using this ingredient during pregnancy.
Retinol may cause irritation in some people, so be sure to patch test. Experts recommend 'ramping up' retinol use: start using this ingredient once a week and work up to using it daily.
Read about Tretinoin
Learn more about RetinolBHT is a synthetic antioxidant and preservative.
As an antioxidant, it helps your body fight off free-radicals. Free-radicals are molecules that may damage your skin cells.
As a preservative, it is used to stabilize products and prevent them from degrading. Specifically, BHT prevents degradation from oxidation.
The concerns related to BHT come from oral studies; this ingredient is currently allowed for use by both the FDA and EU.
However, it was recently restricted for use in the UK as of April 2024.
Learn more about BHTIngredient Ratings
Here's what our community thinks of the ingredients in these products.
When to use
Principia Serum Facial Rn-0,3 17 ingredients
COSRX The Retinol 0.1 Cream 51 ingredients
Reviews
Here's what our community thinks
Principia Serum Facial Rn-0,3 17 ingredients
COSRX The Retinol 0.1 Cream 51 ingredients
Wonderful beginner retinol
Ny first ever retinol but 2nd time using a retinoid. for context I have highly acne-prone skin.
I've been using this every other night for a couple weeks now and I see that my acne is healing much faster than usual, i.e. less redness and irritation on acne that I would usually experience.
Though there are ingredients rated by SkinSort as not good for acne-prone Show more
(Started Dec 2023) This was a bit of an impulse buy with a friend, but I'm honestly glad I got it! I have previous experience with using retinoids (specifically from The Ordinary Line) and wanted to try something a bit stronger. On Amazon it is priced at $13, so I would say this is a wonderful budget buy. The formulation is very gentle given the strength and I experienced no problems with Show more
