CommonLabs Vitamin C Brightening Sun Serum SPF50 PA++++ Versus COSRX The Vitamin C 23 Serum
Updated on June 28, 2024
Overview
What they are
These products are both cruelty-free and reef safe . They have a total of 10 ingredients in common
Cool Features
They both contain hyaluronic acid, niacinamide, Vitamin C and Vitamin E
Suited For
They're both likely to be good for fighting acne, anti aging, dry skin, brightening skin, sensitive skin, oily skin, reducing pores, scar healing, dark spots and better texture
Free From
They both do not contain any parabens or sulfates
What's Inside
They both contain harsh alcohols, oils 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
CommonLabs Vitamin C Brightening Sun Serum SPF50 PA++++ 68 ingredients
COSRX The Vitamin C 23 Serum 34 ingredients
About this product
About this product
At a glance
Click on any of the items below to learn more
CommonLabs Vitamin C Brightening Sun Serum SPF50 PA++++ 68 ingredients
COSRX The Vitamin C 23 Serum 34 ingredients
Key Ingredients
Benefits
Concerns
Key Ingredients
Benefits
Concerns
Ingredients Side-by-side
Water
Skin ConditioningDibutyl Adipate
EmollientDiethylamino Hydroxybenzoyl Hexyl Benzoate
UV Filter
Alcohol
Antimicrobial
Bis-Ethylhexyloxyphenol Methoxyphenyl Triazine
Skin Conditioning
C12-15 Alkyl Benzoate
AntimicrobialSilica
Abrasive
Phenethyl Benzoate
Emollient
Ethylhexyl Triazone
UV Absorber
Niacinamide
Smoothing
Isoamyl P-Methoxycinnamate
UV Absorber
Polysilicone-15
UV FilterMethylpropanediol
Solvent1,2-Hexanediol
Skin ConditioningGlycerin
Humectant
Pentylene Glycol
Skin ConditioningAcetyl Glucosamine
Skin ConditioningSodium Hyaluronate
Humectant
Hydroxyacetophenone
Antioxidant
Sodium Hyaluronate Crosspolymer
Humectant
Caprylyl Glycol
EmollientButylene Glycol
Humectant
Cynanchum Atratum Extract
Skin ConditioningAlthaea Rosea Flower Extract
Skin ConditioningEthylhexylglycerin
Skin ConditioningC30-45 Alkyldimethylsilyl Polypropylsilsesquioxane
Dibutyl Lauroyl Glutamide
Skin ConditioningDibutyl Ethylhexanoyl Glutamide
Skin ConditioningSodium Acrylates Crosspolymer-2
AbsorbentSodium Polyacryloyldimethyl Taurate
Emulsion StabilisingAmmonium Acryloyldimethyltaurate/Vp Copolymer
Citrus Aurantium Bergamia Fruit Oil
Masking
Limonene
Perfuming
Linalool
Perfuming
Xanthan Gum
EmulsifyingTocopherol
Antioxidant
Disodium EDTA
Hydrolyzed Hyaluronic Acid
Humectant
Pancratium Maritimum Extract
BleachingFragaria Chiloensis Fruit Extract
Skin ConditioningVaccinium Macrocarpon Fruit Extract
AstringentHyaluronic Acid
Humectant
Ascorbic Acid
Antioxidant
Linolenic Acid
Cleansing
Citrus Paradisi Fruit Extract
Skin ConditioningCitrus Limon Fruit Extract
Masking
Rubus Idaeus Fruit Extract
AstringentCitrus Aurantifolia Fruit Extract
Skin ConditioningCitrus Junos Peel Extract
Skin ConditioningLactobacillus Ferment Lysate
Skin Conditioning
Citrus Unshiu Peel Extract
MaskingRiboflavin
Cosmetic ColorantPyridoxine
Skin ConditioningFolic Acid
Skin ConditioningPantothenic Acid
Skin ConditioningThiamine Hcl
MaskingCyanocobalamin
Skin ConditioningBiotin
AntiseborrhoeicLinoleic Acid
Cleansing
Retinol
Skin Conditioning
Menadione
MaskingGlutathione
Bioflavonoids
Skin ConditioningHippophae Rhamnoides Fruit Extract
Skin ConditioningTerminalia Ferdinandiana Fruit Extract
Antioxidant
Saccharide Isomerate
HumectantCitric Acid
Buffering
Sodium Citrate
BufferingWater, Dibutyl Adipate, Diethylamino Hydroxybenzoyl Hexyl Benzoate, Alcohol, Bis-Ethylhexyloxyphenol Methoxyphenyl Triazine, C12-15 Alkyl Benzoate, Silica, Phenethyl Benzoate, Ethylhexyl Triazone, Niacinamide, Isoamyl P-Methoxycinnamate, Polysilicone-15, Methylpropanediol, 1,2-Hexanediol, Glycerin, Pentylene Glycol, Acetyl Glucosamine, Sodium Hyaluronate, Hydroxyacetophenone, Sodium Hyaluronate Crosspolymer, Caprylyl Glycol, Butylene Glycol, Cynanchum Atratum Extract, Althaea Rosea Flower Extract, Ethylhexylglycerin, C30-45 Alkyldimethylsilyl Polypropylsilsesquioxane, Dibutyl Lauroyl Glutamide, Dibutyl Ethylhexanoyl Glutamide, Sodium Acrylates Crosspolymer-2, Sodium Polyacryloyldimethyl Taurate, Ammonium Acryloyldimethyltaurate/Vp Copolymer, Citrus Aurantium Bergamia Fruit Oil, Limonene, Linalool, Xanthan Gum, Tocopherol, Disodium EDTA, Hydrolyzed Hyaluronic Acid, Pancratium Maritimum Extract, Fragaria Chiloensis Fruit Extract, Vaccinium Macrocarpon Fruit Extract, Hyaluronic Acid, Ascorbic Acid, Linolenic Acid, Citrus Paradisi Fruit Extract, Citrus Limon Fruit Extract, Rubus Idaeus Fruit Extract, Citrus Aurantifolia Fruit Extract, Citrus Junos Peel Extract, Lactobacillus Ferment Lysate, Citrus Unshiu Peel Extract, Riboflavin, Pyridoxine, Folic Acid, Pantothenic Acid, Thiamine Hcl, Cyanocobalamin, Biotin, Linoleic Acid, Retinol, Menadione, Glutathione, Bioflavonoids, Hippophae Rhamnoides Fruit Extract, Terminalia Ferdinandiana Fruit Extract, Saccharide Isomerate, Citric Acid, Sodium Citrate
Water
Skin ConditioningAscorbic Acid 23%
Antioxidant
Propanediol
SolventDimethicone
Emollient
Tromethamine
BufferingPanthenol
Skin Conditioning
Ethyl Ether
SolventSqualane
Emollient
Caffeine
Skin ConditioningSodium 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 ConditioningBeta-Carotene
Skin ConditioningWater, Ascorbic Acid 23%, Propanediol, Dimethicone, Tromethamine, Panthenol, Ethyl Ether, 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
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 WaterNiacinamide has emerged as an all-star ingredient due to its many benefits.
It is known to treat acne by reducing inflammation. It also helps fade dark-spots and strengthen the skin by promoting the growth of the ceramide barrier.
Other benefits include smoothing wrinkles and minimizing redness.
The cherry on top? Niacinamide can also help build keratin, a protein that keeps skin firm.
When incorporating niacinamide into your routine, look out for concentration amounts. Typically, 5% niacinamide provides benefits such as fading dark spots. However, if you have sensitive skin, it is better to begin with a smaller concentration.
Niacinamide can be mixed with other ingredients to boost benefits. For instance, it has shown to be effective when used with copper, folic acid, and zinc to treat acne.
Learn more about NiacinamidePentylene 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 GlycolAcetyl Glucosamine is an antioxidant and humectant. It is an amino acid sugar and is naturally found in our skin.
The cool thing about this ingredient? It helps the skin produce hyaluronic acid and boost hydration. It also has antioxidant benefits to protect skin cells.
When paired with niacinamide, Acetyl Glucosamine has been shown to be effective at reducing discoloration.
Learn more about Acetyl GlucosamineSodium 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 HyaluronateButylene 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.
- It has mild preservative properties.
Overall, Butylene Glycol is a safe and well-rounded ingredient that works well with other ingredients.
Tocopherol (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 TocopherolDisodium EDTA plays a role in making products more stable by aiding other preservatives.
It is a chelating agent, meaning it neutralizes metal ions that may be found in a product.
Disodium EDTA is a salt of edetic acid and is found to be safe in cosmetic ingredients.
Learn more about Disodium EDTAAscorbic 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 AcidGlutathione is an antioxidant naturally found in our bodies. It is made up of three amino acids: glycine, cysteine, and glutamic acid.
As an antioxidant, it prevents oxidative damage to parts of our cell.
While glutathione is said to help with fading dark spots, the results from research are inconclusive. Further studies are needed. With that said, gluthatione has been shown to protect our skin from UV-B induced damage.
This ingredient is naturally occurring in plants, animals, fungi, and some bacteria.
Learn more about GlutathioneIngredient Ratings
Here's what our community thinks of the ingredients in these products.
When to use
CommonLabs Vitamin C Brightening Sun Serum SPF50 PA++++ 68 ingredients
COSRX The Vitamin C 23 Serum 34 ingredients
Reviews
Here's what our community thinks
CommonLabs Vitamin C Brightening Sun Serum SPF50 PA++++ 68 ingredients
Burns, fragrances, eyes red, made my skin sting. Worst sunscreen
COSRX The Vitamin C 23 Serum 34 ingredients
I didn't like the consistency of this serum at all.
It felt like I was putting oil to my face, but since I always use the whole product to see results this did nothing to me other than feeling uncomfortable.
Cured my acne scars
I had mix feelings when I first bought this as I read that the smell can be off-putting. But I am glad I bought it. My acne scars faded a lot more after 3 days of using it and saw great results in one week. It also didn't break me out despite containing alcohols and oils. It does sting a little on the first application but doesn't irritate my skin. The smell can be quite strong Show more
