Updated on July 18, 2023
Overview
Suited For
They're both likely to be good for fighting acne, dry skin, brightening skin, sensitive skin, oily skin and scar healing
Free From
They both do not contain any parabens or sulfates
What's Inside
They both contain fragrances and 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
Olay Regenerist Luminous Overnight Gel Mask 27 ingredients
COSRX Centella Blemish Cream 20 ingredients
At a glance
Click on any of the items below to learn more
Olay Regenerist Luminous Overnight Gel Mask 27 ingredients
COSRX Centella Blemish Cream 20 ingredients
Notable Ingredients
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Benefits
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Concerns
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Benefits
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Ingredients Side-by-side
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.
Butylene Glycol (or BG) is used within cosmetic products for a few different reasons:
Glycerin is already naturally found in your skin. It helps moisturize and protect your skin.
6 Benefits
Niacinamide has emerged as an all-star ingredient due to its many benefits.
Cyclopentasiloxane is a silicone used to improve texture and trap moisture. An easier name for this is D5.
Isopropyl isodecanoate is a lipid created from isopropyl alcohol and isostearic acid.
Dimethicone is a silicone used for making products smooth and silky. It also has the added benefit of sealing in hydration. The amount of dimethicone found in beauty products is considered safe and non-comedogenic, meaning it won't clog pores.
Polymethylsilsesquioxane is a silicone used as a film forming agent.
Antioxidant 6 Benefits
Sodium Ascorbyl Phosphate is a form of Vitamin C. It is the salt of ascorbic acid.
Antioxidant Helps brighten skin
Tocopheryl 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.
Panthenol is a common ingredient that helps hydrate and soothe the skin. It can be found naturally in our skin and hair.
Acrylates/C10-30 Alkyl Acrylate Crosspolymer is a synthetic polymer. It is used to thicken and improve the texture of products.
Dimethiconol is a silicone that resembles the popular dimethicone. Like other silicones, it is an emollient. Emollients create a thin film on skin to prevent moisture from escaping.
Dimethicone Crosspolymer is a silicone created by modifying dimethicone with hydrocarbon side chains. Due to its large size, it does not penetrate skin. It is considered non-occlusive.
Aminomethyl Propanol is used to adjust the pH of products. It is also used as a base to create other organic compounds. Having a balanced pH is important for protecting your skin.
Phenoxyethanol 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.
2 Concerns
DMDM Hydantoin has antimicrobial and antifungal properties. It is a preservative that works by slowly releasing formaldehyde over time.
2 Concerns
Ethylhexyl Salicylate is an organic compound used to block UV rays. It primarily absorbs UVB rays but offers a small amount of UVA protection as well.
Fragrance Preservative 6 Concerns
Benzyl Alcohol is most commonly used as a preservative. It also has a subtle, sweet smell. Small amounts of Benzyl Alcohol is not irritating and safe to use in skincare products. Most Benzyl Alcohol is derived from fruits such as apricots.
Cetyl Alcohol is a fatty alcohol. Fatty Alcohols are most often used as an emollient or to thicken a product.
Disodium EDTA plays a role in making products more stable by aiding other preservatives.
2 Concerns
Parfum is a catch-all term for an ingredient or more that is used to give a scent to products.
Water, Butylene Glycol, Glycerin, Niacinamide, Cyclopentasiloxane, Isopropyl Isostearate, Dimethicone, Polymethylsilsesquioxane, Morus Alba Root Extract, Lilium Candidum Flower Extract, Lonicera Japonica Flower Extract, Sodium Ascorbyl Phosphate, Tocopheryl Acetate, Glucosyl Hesperidin, Panthenol, Acrylates/C10-30 Alkyl Acrylate Crosspolymer, Dimethiconol, Dimethicone Crosspolymer, Aminomethyl Propanol, Phenoxyethanol, DMDM Hydantoin, Ethylhexyl Salicylate, Benzyl Alcohol, Cetyl Alcohol, Iodopropynyl Butylcarbamate, Disodium EDTA, Parfum
Centella Asiatica Leaf Water is created by distilling centella asiatica leaves. Centella Asiatica is a herb native to Southeast Asia.
Butylene Glycol (or BG) is used within cosmetic products for a few different reasons:
Glycerin is already naturally found in your skin. It helps moisturize and protect your skin.
Helps hydrate Dry Skin 2 Concerns
Helianthus Annuus Seed Oil is the oil derived from the seeds of a Sunflower. Sunflower seed oil is non-fragrant. It is an emollient, meaning it helps to soften the skin.
Helps fight Acne Non-Reef-Safe
Zinc Oxide is a mineral broad-spectrum UV filter; it is the broadest UVA and UVB reflector approved by the FDA. While it is most commonly man-made for cosmetics, it can naturally occur in zincite, a rare mineral.
Dimethicone is a silicone used for making products smooth and silky. It also has the added benefit of sealing in hydration. The amount of dimethicone found in beauty products is considered safe and non-comedogenic, meaning it won't clog pores.
Betaine is a common humectant (a substance that promotes retention of moisture). It's known to be gentle on the skin and can help balance hydration.
1,2-Hexanediol is a multi-tasker ingredient. It acts as a preservative to increase shelf-life and can aid other preservatives in preventing microbe growth. 1,2-Hexanediol also helps the skin retain moisture as a humectant.
Not safe for Fungal Acne
Elaeis Guineensis Oil comes from the African Palm tree. This tree is native to Western and Southwestern Africa.
Not safe for Fungal Acne
Elaeis Guineensis Oil comes from the African Palm tree. This tree is native to Western and Southwestern Africa.
3 Concerns
Cetearyl alcohol is a mixture of two fatty alcohols: cetyl alcohol and stearyl alcohol. It is mainly used as an emulsifier. Emulsifiers help prevent the separation of oils and products. Due to its composition, it can also be used to thicken a product or help create foam.
Cetearyl Olivate is an emulsifier and texture enhancer. It is derived from the fatty acids of olive oil and Cetearyl alcohol, and is biodegradable.
Centella Asiatica Extract (Centella) is derived from an herb native to Southeast Asia. It is famous for its anti-inflammatory and soothing properties.
Zinc PCA (or "zinc salt") differs slightly from zinc itself. PCA stands for pyrrolidone carboxylic acid. However, Zinc PCA comes from zinc.
This is a synthetic polymer. It helps improve the texture of products by adding thickness and gel-like feel.
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.
Fragrance Oil Good for Oily Skin
This tea tree oil comes from the leaves of the Tea Tree plant. Tea tree oil has antioxidant, anti-inflammatory, and antimicrobial properties.
Scutellaria Baicalensis Root Extract comes from the Baikal skullcap or Chinese skullcap plant. This plant is native to Northeast Asia and can be found in China, Mongolia, Korea, and Siberia.
Centella Asiatica Leaf Water, Butylene Glycol, Glycerin, Helianthus Annuus Seed Oil, Zinc Oxide, Dimethicone, Betaine, 1,2-Hexanediol, Viola Tricolor Extract, Elaeis Guineensis Oil, Elaeis Guineensis Kernel Oil, Cetearyl Alcohol, Cetearyl Olivate, Sorbitan Olivate, Centella Asiatica Extract, Zinc PCA, Hydroxyethyl Acrylate/Sodium Acryloyldimethyl Taurate Copolymer, Xanthan Gum, Melaleuca Alternifolia Leaf Oil, Scutellaria Baicalensis Root Extract
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.
Overall, Butylene Glycol is a safe and well-rounded ingredient. It is unlikely to irritate skin, and works well with pretty much all 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 silicone used for making products smooth and silky. It also has the added benefit of sealing in hydration. The amount of dimethicone found in beauty products is considered safe and non-comedogenic, meaning it won't clog pores.
Dimethicone has been found increase absorption in skin, boosting the benefits of other ingredients. While there is concern for the safety of dimethicone, the levels used in skincare are safe for use.
Ingredient Ratings
Here's what our community thinks of the ingredients in these two products.
When to use
Olay Regenerist Luminous Overnight Gel Mask 27 ingredients
COSRX Centella Blemish Cream 20 ingredients
Reviews
Here's what our community thinks
Olay Regenerist Luminous Overnight Gel Mask 27 ingredients
COSRX Centella Blemish Cream 20 ingredients
AnaRitaSantos
Very mixed feelings about this one
Pros: very effective balm against irritation and redness, great brightening power. Cons: very strong white cast...
Very mixed feelings about this one
Pros: very effective balm against irritation and redness, great brightening power. Cons: very strong white cast and it pills off awfully. Best used at night as spot treatment in small areas, keep the routine very basic to minimize pilling.
clementhyme
loooove this, 100% night time product
definitely leaves a white cast you look like a little ghost, but soo soothing and refreshing for irritated,...
loooove this, 100% night time product
definitely leaves a white cast you look like a little ghost, but soo soothing and refreshing for irritated, sensitive skin, has been helping my acne scars aswell as redness from acne/ just acne in general :)
