COSRX The Vitamin C 13 Serum Versus Colibri Skincare Vitamin C 20 Booster
Updated on March 26, 2025
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 Vitamin C and Vitamin E
Suited For
They're both likely to be good for anti aging, dry skin, brightening skin, sensitive skin, reducing pores, scar healing and better texture
Free From
They both do not contain any harsh alcohols, common allergens, fragrances, parabens, silicones 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
COSRX The Vitamin C 13 Serum 25 ingredients
Colibri Skincare Vitamin C 20 Booster 22 ingredients
About this product
About this product
At a glance
Click on any of the items below to learn more
COSRX The Vitamin C 13 Serum 25 ingredients
Colibri Skincare Vitamin C 20 Booster 22 ingredients
Key Ingredients
Benefits
Key Ingredients
Benefits
Ingredients Side-by-side
Water
Skin ConditioningAscorbic Acid 13%
Antioxidant
Butylene Glycol
Humectant
Dipropylene Glycol
MaskingTromethamine
Buffering3-O-Ethyl Ascorbic Acid
Skin Conditioning
Panthenol
Skin Conditioning
Acetyl Glucosamine
Skin ConditioningCaffeine
Skin ConditioningSodium Hyaluronate
Humectant
Sodium Sulfite
Preservative
Disodium EDTA
Glutathione
Adenosine
Skin Conditioning
Gardenia Florida Fruit Extract
Skin ConditioningAllantoin
Skin Conditioning
Dextrin
AbsorbentSqualane
Emollient
Tocotrienols
Skin ConditioningTocopherol
Antioxidant
Elaeis Guineensis Oil
Emollient
Arginine
Masking
Niacinamide
Smoothing
Pentylene Glycol
Skin ConditioningGlycyrrhiza Glabra Root Extract
Bleaching
Water, Ascorbic Acid 13%, Butylene Glycol, Dipropylene Glycol, Tromethamine, 3-O-Ethyl Ascorbic Acid, Panthenol, Acetyl Glucosamine, Caffeine, Sodium Hyaluronate, Sodium Sulfite, Disodium EDTA, Glutathione, Adenosine, Gardenia Florida Fruit Extract, Allantoin, Dextrin, Squalane, Tocotrienols, Tocopherol, Elaeis Guineensis Oil, Arginine, Niacinamide, Pentylene Glycol, Glycyrrhiza Glabra Root Extract
Water
Skin Conditioning3-O-Ethyl Ascorbic Acid
Skin Conditioning
Tetrahexyldecyl Ascorbate
Antioxidant
3-Glyceryl Ascorbate
Antioxidant
Glycerin
Humectant
Pentylene Glycol
Skin ConditioningPropylheptyl Caprylate
EmollientGlyceryl Stearate Citrate
Emollient
Coco-Caprylate/Caprate
Emollient
Acetyl Zingerone
Antioxidant
Hydrogenated Lecithin
EmulsifyingHexylresorcinol
AntimicrobialPolyglyceryl-3 Stearate
Emulsifying
Hydrogenated Phosphatidylcholine
EmulsifyingAllantoin
Skin Conditioning
Microcrystalline Cellulose
AbsorbentSodium Stearoyl Glutamate
CleansingCellulose Gum
Emulsion StabilisingTocopherol
Antioxidant
Citric Acid
Buffering
Sodium Phytate
Xanthan Gum
EmulsifyingWater, 3-O-Ethyl Ascorbic Acid, Tetrahexyldecyl Ascorbate, 3-Glyceryl Ascorbate, Glycerin, Pentylene Glycol, Propylheptyl Caprylate, Glyceryl Stearate Citrate, Coco-Caprylate/Caprate, Acetyl Zingerone, Hydrogenated Lecithin, Hexylresorcinol, Polyglyceryl-3 Stearate, Hydrogenated Phosphatidylcholine, Allantoin, Microcrystalline Cellulose, Sodium Stearoyl Glutamate, Cellulose Gum, Tocopherol, Citric Acid, Sodium Phytate, 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 WaterYou might know this ingredient as Ethyl Ascorbic Acid, a more stable version of ascorbic acid.
Like other types of vitamin C, this ingredient has many benefits including reducing wrinkles, skin soothing, dark spot fading, and fighting against free radicals.
3-O-Ethyl Ascorbic Acid interferes with the process of skin darkening, helping to reduce hyperpigmentation. It also encourages the skin to produce more collagen.
Once applied, 3-O-Ethyl Ascorbic Acid is converted to Vitamin C deeper in the skin's layers. This process is slow but makes this ingredient more tolerable for skin.
The optimum pH range for this ingredient is 4 - 5.5
Learn more about 3-O-Ethyl Ascorbic AcidAllantoin 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 AllantoinTocopherol (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 TocopherolPentylene glycol is typically used within a product to thicken it. It also adds a smooth, soft, and moisturizing feel to the product. It is naturally found in plants such as sugar beets.
The hydrophilic trait of Pentylene Glycol makes it a humectant. As a humectant, Pentylene Glycol helps draw moisture from the air to your skin. This can help keep your skin hydrated.
This property also makes Pentylene Glycol a great texture enhancer. It can also help thicken or stabilize a product.
Pentylene Glycol also acts as a mild preservative and helps to keep a product microbe-free.
Some people may experience mild eye and skin irritation from Pentylene Glycol. We always recommend speaking with a professional about using this ingredient in your routine.
Pentylene Glycol has a low molecular weight and is part of the 1,2-glycol family.
Learn more about Pentylene GlycolIngredient Ratings
Here's what our community thinks of the ingredients in these products.
When to use
COSRX The Vitamin C 13 Serum 25 ingredients
Colibri Skincare Vitamin C 20 Booster 22 ingredients
Reviews
Here's what our community thinks
COSRX The Vitamin C 13 Serum 25 ingredients
Colibri Skincare Vitamin C 20 Booster 22 ingredients
love it in my morning routine. feels great, helps my dry, sensitive, FA prone skin, gives a great healthy glowy feeling
