COSRX The Vitamin C 23 Serum Versus Dermatica Vitamin C 15% Fresh Batch Ascorbic Acid
Updated on October 26, 2025
Overview
What they are
These products are both reef safe . They have a total of 7 ingredients in common
Cool Features
They both contain hyaluronic acid, 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, dark spots and better texture
Free From
They both do not contain any common allergens, fragrances, 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
COSRX The Vitamin C 23 Serum 34 ingredients
Dermatica Vitamin C 15% Fresh Batch Ascorbic Acid 30 ingredients
What's inside
What's inside
At a glance
Click on any of the items below to learn more
COSRX The Vitamin C 23 Serum 34 ingredients
Dermatica Vitamin C 15% Fresh Batch Ascorbic Acid 30 ingredients
Key Ingredients
Benefits
Concerns
Ingredients Side-by-side
Water
Skin ConditioningAscorbic Acid 23%
Antioxidant
Propanediol
Solvent
Dimethicone
Emollient
Tromethamine
BufferingPanthenol
Skin Conditioning
3-O-Ethyl Ascorbic Acid
Skin Conditioning
Squalane
Emollient
Caffeine
Skin Conditioning
Sodium Chloride
Masking
Sodium Hyaluronate
Humectant
Sodium Sulfite
Preservative
Disodium EDTA
Glutathione
Adenosine
Skin Conditioning
Acetyl Glucosamine
Skin ConditioningGardenia Florida Fruit Extract
Skin ConditioningAllantoin
Skin Conditioning
Dextrin
AbsorbentTocotrienols
Skin ConditioningTocopherol
Antioxidant
Elaeis Guineensis Oil
Emollient
Butylene Glycol
Humectant
Arginine
Masking
Niacinamide
Smoothing
Pentylene Glycol
Skin ConditioningAlcohol Denat.
Antimicrobial
Helianthus Annuus Seed Oil
Emollient
Glycyrrhiza Glabra Root Extract
Bleaching
Methyl Trimethicone
Skin Conditioning
Carthamus Tinctorius Seed Oil
Masking
Camellia Japonica Seed Oil
Emollient
Daucus Carota Sativa Root Extract
Skin Conditioning
Beta-Carotene
Skin ConditioningWater, Ascorbic Acid 23%, Propanediol, Dimethicone, Tromethamine, Panthenol, 3-O-Ethyl Ascorbic Acid, Squalane, Caffeine, Sodium Chloride, Sodium Hyaluronate, Sodium Sulfite, Disodium EDTA, Glutathione, Adenosine, Acetyl Glucosamine, Gardenia Florida Fruit Extract, Allantoin, Dextrin, Tocotrienols, Tocopherol, Elaeis Guineensis Oil, Butylene Glycol, Arginine, Niacinamide, Pentylene Glycol, Alcohol Denat., Helianthus Annuus Seed Oil, Glycyrrhiza Glabra Root Extract, Methyl Trimethicone, Carthamus Tinctorius Seed Oil, Camellia Japonica Seed Oil, Daucus Carota Sativa Root Extract, Beta-Carotene
Water
Skin ConditioningAscorbic Acid 15%
Antioxidant
Glycerin
Humectant
Propanediol
Solvent
Panthenol
Skin Conditioning
Glyceryl Stearate
Emollient
PEG-75 Stearate
Cetyl Alcohol
Emollient
Ferulic Acid
Antimicrobial
Arginine
Masking
Dimethicone
Emollient
Polyurethane-39
C13-15 Alkane
SolventSodium Hyaluronate
Humectant
Polyacrylate-13
Polysorbate 20
Emulsifying
Polyisobutene
Isohexadecane
EmollientIsododecane
EmollientPhenoxyethanol
Preservative
Tocopheryl Acetate
Antioxidant
Sodium Metabisulfite
Antioxidant
Ceramide NP
Skin Conditioning
Ceramide AP
Skin Conditioning
Ceramide EOP
Skin Conditioning
Phytosphingosine
Skin Conditioning
Cholesterol
Emollient
Sodium Lauroyl Lactylate
EmulsifyingCarbomer
Emulsion StabilisingEthylhexylglycerin
Skin ConditioningWater, Ascorbic Acid 15%, Glycerin, Propanediol, Panthenol, Glyceryl Stearate, PEG-75 Stearate, Cetyl Alcohol, Ferulic Acid, Arginine, Dimethicone, Polyurethane-39, C13-15 Alkane, Sodium Hyaluronate, Polyacrylate-13, Polysorbate 20, Polyisobutene, Isohexadecane, Isododecane, Phenoxyethanol, Tocopheryl Acetate, Sodium Metabisulfite, Ceramide NP, Ceramide AP, Ceramide EOP, Phytosphingosine, Cholesterol, Sodium Lauroyl Lactylate, Carbomer, Ethylhexylglycerin
Ingredients Explained
These ingredients are found in both products.
Ingredients higher up in an ingredient list are typically present in a larger amount.
Arginine is an amino acid that is important for human development. Your body uses is it to produce hair keratin and skin collagen.
As a cosmetic ingredient, Arginine has antioxidant properties and can also help repair damaged skin. This ingredient is derived either synthetically or from animals.
Arginine isn't fungal acne safe when used in the presence of other lipids (fats, fatty acids, oils, esters, etc). Oils and fats occur naturally within the skin, so take caution when using Arginine if you're prone to fungal acne.
Learn more about ArginineAscorbic Acid is is pure Vitamin C. This form makes up the largest amount of vitamin C found naturally in our skin.
Not only is vitamin C great for your overall health and immune system, it also has plenty of benefits on your skin.
Vitamin C is best used for brightening skin. It improves dark spots, acne scars, and hyperpigmentation. This is because it blocks the process of skin darkening when exposed to UV.
Remember: Vitamin C should not replace sunscreen!
Your skin uses vitamin C to build collagen. Collagen is one key component in having a strong skin barrier and plump skin. Vitamin C also plays a role in regulating collagen, thus making it effective in improving wrinkles and fine lines.
Ascorbic acid shows potent antioxidant activity. As an antioxidant, it helps fight free-radicals. Free-radicals are molecules that may damage your skin cells. These antioxidants also protect skin against UV damage.
The best formulations include Vitamin E and/or ferulic acid. These two ingredients help stabilize and provide a boost in the benefits of ascorbic acid. This is because ascorbic acid becomes unstable when exposed to UV and air. In fact, you can tell your ascorbic acid has oxidized when it turns an orange-yellow color.
Ascorbic acid is generally compatible with other ingredients. However, using ascorbic acid with other active ingredients might cause irritation. Two ingredients: copper ions and benzoyl peroxide, will inactivate ascorbic acid completely.
Read more about other types of Vitamin C:
Foods rich with vitamin C include oranges, strawberries, broccoli, bell peppers, and more. When consuming Vitamin C, your skin receives a portion of the nutrients.
Learn more about Ascorbic AcidDimethicone 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 DimethiconePanthenol 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 PanthenolPropanediol is an all-star ingredient. It softens, hydrates, and smooths the skin.Ā
Itās 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 PropanediolSodium Hyaluronate is hyaluronic acid's salt form. It is commonly derived from the sodium salt of hyaluronic acid.
Like hyaluronic acid, it is great at holding water and acts as a humectant. This makes it a great skin hydrating ingredient.
Sodium Hyaluronate is naturally occurring in our bodies and is mostly found in eye fluid and joints.
These are some other common types of Hyaluronic Acid:
Learn more about Sodium HyaluronateWater. 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 WaterIngredient Ratings
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When to use
COSRX The Vitamin C 23 Serum 34 ingredients
Dermatica Vitamin C 15% Fresh Batch Ascorbic Acid 30 ingredients
Reviews
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COSRX The Vitamin C 23 Serum 34 ingredients
Dermatica Vitamin C 15% Fresh Batch Ascorbic Acid 30 ingredients
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