Cosmedix Define Age-Defying Treatment Versus COSRX The Retinol 0.5 Oil
Updated on June 19, 2024
Overview
What they are
These products are both cruelty-free and reef safe . They have a total of 3 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, dry skin, brightening skin, oily skin, reducing pores, scar healing, dark spots and better texture
Free From
They both do not contain any parabens, silicones or sulfates
What's Inside
They both contain oils
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
Cosmedix Define Age-Defying Treatment 49 ingredients
COSRX The Retinol 0.5 Oil 10 ingredients
About this product
About this product
At a glance
Click on any of the items below to learn more
Cosmedix Define Age-Defying Treatment 49 ingredients
COSRX The Retinol 0.5 Oil 10 ingredients
Key Ingredients
Benefits
Concerns
Key Ingredients
Benefits
Concerns
Ingredients Side-by-side
Water
Skin ConditioningPolysorbate 60
Emulsifying
Lactic Acid
Buffering
Isopropyl Myristate
Emollient
Glyceryl Stearate
Emollient
Hamamelis Virginiana Water
Astringent
Stearic Acid
Cleansing
Cetearyl Alcohol
Emollient
Glycerin
Humectant
Sodium Hydroxide
BufferingLeuconostoc/Radish Root Ferment Filtrate
Antimicrobial
Tartaric Acid
Buffering
Retinyl Acetate
Skin Conditioning
Albumen
Skin ConditioningCetyl Alcohol
Emollient
Benzyl Alcohol
Perfuming
Malic Acid
Buffering
Olea Europaea Fruit Oil
Masking
Retinol
Skin Conditioning
Pichia/Resveratrol Ferment Extract
Skin ConditioningResveratrol Dimethyl Ether
Antioxidant
Galactoarabinan
Proline
Skin ConditioningRetinyl Palmitate
Skin Conditioning
Citrus Grandis Peel Oil
Masking
Cananga Odorata Flower Oil
Masking
Bisabolol
Masking
Tocopheryl Acetate
Antioxidant
Aloe Barbadensis Leaf Juice Powder
Skin ConditioningAllantoin
Skin Conditioning
Daucus Carota Sativa Root Extract
Skin ConditioningPrunus Amygdalus Dulcis Oil
Skin Conditioning
Helianthus Annuus Seed Oil
Emollient
Chamomilla Recutita Flower Extract
Masking
Tocopherol
Antioxidant
Althaea Officinalis Root Extract
Skin ConditioningAlcohol
Antimicrobial
Citric Acid
Buffering
Polysorbate 20
Emulsifying
Potassium Sorbate
Preservative
Limonene
Perfuming
Sodium Gluconate
Skin ConditioningBHA
Antioxidant
Behenyl Alcohol
Emollient
Caprylhydroxamic Acid
Alcohol Denat.
Antimicrobial
BHT
Antioxidant
Xanthan Gum
EmulsifyingPhenoxyethanol
Preservative
Water, Polysorbate 60, Lactic Acid, Isopropyl Myristate, Glyceryl Stearate, Hamamelis Virginiana Water, Stearic Acid, Cetearyl Alcohol, Glycerin, Sodium Hydroxide, Leuconostoc/Radish Root Ferment Filtrate, Tartaric Acid, Retinyl Acetate, Albumen, Cetyl Alcohol, Benzyl Alcohol, Malic Acid, Olea Europaea Fruit Oil, Retinol, Pichia/Resveratrol Ferment Extract, Resveratrol Dimethyl Ether, Galactoarabinan, Proline, Retinyl Palmitate, Citrus Grandis Peel Oil, Cananga Odorata Flower Oil, Bisabolol, Tocopheryl Acetate, Aloe Barbadensis Leaf Juice Powder, Allantoin, Daucus Carota Sativa Root Extract, Prunus Amygdalus Dulcis Oil, Helianthus Annuus Seed Oil, Chamomilla Recutita Flower Extract, Tocopherol, Althaea Officinalis Root Extract, Alcohol, Citric Acid, Polysorbate 20, Potassium Sorbate, Limonene, Sodium Gluconate, BHA, Behenyl Alcohol, Caprylhydroxamic Acid, Alcohol Denat., BHT, Xanthan Gum, Phenoxyethanol
Ingredients Explained
These ingredients are found in both products.
Ingredients higher up in an ingredient list are typically present in a larger amount.
Retinol 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 RetinolTocopherol (also known as Vitamin E) is a common antioxidant used to help protect the skin from free-radicals and strengthen the skin barrier. It's also fat soluble - this means our skin is great at absorbing it.
Vitamin E also helps keep your natural skin lipids healthy. Your lipid skin barrier naturally consists of lipids, ceramides, and fatty acids. Vitamin E offers extra protection for your skin’s lipid barrier, keeping your skin healthy and nourished.
Another benefit is a bit of UV protection. Vitamin E helps reduce the damage caused by UVB rays. (It should not replace your sunscreen). Combining it with Vitamin C can decrease sunburned cells and hyperpigmentation after UV exposure.
You might have noticed Vitamin E + C often paired together. This is because it is great at stabilizing Vitamin C. Using the two together helps increase the effectiveness of both ingredients.
There are often claims that Vitamin E can reduce/prevent scarring, but these claims haven't been confirmed by scientific research.
Learn more about TocopherolBHT 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
Cosmedix Define Age-Defying Treatment 49 ingredients
COSRX The Retinol 0.5 Oil 10 ingredients
Reviews
Here's what our community thinks
Cosmedix Define Age-Defying Treatment 49 ingredients
COSRX The Retinol 0.5 Oil 10 ingredients
Bought this for my face but saw zero results. Now I'm using this for my uner eyes.
Broke me out
I have oily and acne prone skin and my face was on the road to recovery. I thought adding a retinol was a good idea and they marketed that this retinol oil is good for any skin type even though it is oily. It broke me out and gave me a scar within a week. It gave me an acne that was deep inside of my skin. I wouldnt recommend it to oily and acne prone skin people.
