Here's our complete breakdown comparing the ingredients, attributes, and more of By WishTrend Pure Vitamin C 21.5% Advanced Serum versus COSRX The Vitamin C 23 Serum .
Last updated on July 18, 2023. Published on October 18, 2022
Overview
What they are
These products are both cruelty-free and reef safe serums. They have a total of 4 ingredients in common
Cool Features
They both contain hyaluronic acid and Vitamin C
Suited For
They're both likely to be good for anti aging, brightening skin, sensitive skin, scar healing, dark spots and better texture
Free From
They both do not contain any common allergens, parabens or sulfates
We independently verify ingredients, and our claims are backed by peer-reviewed research. Spot a product that need an update? Let us know.
Price
Ingredient Info
By WishTrend Pure Vitamin C 21.5% Advanced Serum 10 ingredients
COSRX The Vitamin C 23 Serum 34 ingredients
Alcohol Free
This product is free of harsh alcohols 🎉
Silicon Free
This product is free of silicons 🎉
Contains Fragrance
Ingredients in this product that are forms of fragrance:
Sulfate Free
This product is free of sulfates 🎉
Paraben Free
This product is free of parabens 🎉
Oil Free
This product is free of oils 🎉
Malassezia Safe
This product is free of malassezia feeding ingredients 🎉
Reef Safe
This product is free of ingredients that damage reefs 🎉
EU Allergen Free
This product is free of EU allergens 🎉
Vegan
This product is vegan 🎉
Cruelty Free
This product is cruelty-free 🎉
Contains Alcohol
Ingredients in this product that are types of alcohol:
Contains Silicon
Ingredients in this product that are types of silicon:
Fragrance Free
This product is free of fragrances 🎉
Sulfate Free
This product is free of sulfates 🎉
Paraben Free
This product is free of parabens 🎉
Contains Oils
Ingredients in this product that are types of oil:
Not Malassezia Safe
Ingredients in this product that are not malassezia safe:
Reef Safe
This product is free of ingredients that damage reefs 🎉
EU Allergen Free
This product is free of EU allergens 🎉
Non Vegan
This product is not vegan 😥
Cruelty Free
This product is cruelty-free 🎉
At a glance
Click on any of the items below to learn more
By WishTrend Pure Vitamin C 21.5% Advanced Serum 10 ingredients
COSRX The Vitamin C 23 Serum 34 ingredients
Notable Ingredients
This product contains 1 ingredient that may have this attribute:
This product contains 1 ingredient that may have this attribute:
Benefits
This product contains 2 ingredients that may have this attribute:
This product contains 1 ingredient that may have this attribute:
This product contains 1 ingredient that may have this attribute:
This product contains 1 ingredient that may have this attribute:
This product contains 2 ingredients that may have this attribute:
This product contains 1 ingredient that may have this attribute:
Notable Ingredients
This product contains 1 ingredient that may have this attribute:
This product contains 1 ingredient that may have this attribute:
This product contains 1 ingredient that may have this attribute:
This product contains 1 ingredient that may have this attribute:
Benefits
This product contains 3 ingredients that may have this attribute:
This product contains 1 ingredient that may have this attribute:
This product contains 3 ingredients that may have this attribute:
This product contains 1 ingredient that may have this attribute:
This product contains 1 ingredient that may have this attribute:
This product contains 3 ingredients that may have this attribute:
This product contains 3 ingredients that may have this attribute:
This product contains 4 ingredients that may have this attribute:
This product contains 1 ingredient that may have this attribute:
This product contains 3 ingredients that may have this attribute:
Concerns
This product contains 2 ingredients that may have this attribute:
This product contains 2 ingredients that may have this attribute:
This product contains 1 ingredient that may have this attribute:
This product contains 2 ingredients that may have this attribute:
This product contains 2 ingredients that may have this attribute:
This product contains 1 ingredient that may have this attribute:
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Join SkinSortIngredients Compared
Ingredients that are highlighted in purple are present in both products.
By WishTrend Pure Vitamin C 21.5% Advanced Serum 10 ingredients
COSRX The Vitamin C 23 Serum 34 ingredients
Water • 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 Side-by-side
Ingredients that are highlighted in purple are present in both products.
Learn more about what what Com. / Irr. ratings are
Ingredients Explained
These ingredients are found in both products.
Ingredients higher up in an ingredient list are typically present in a larger amount.
Ascorbic 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 AcidBy WishTrend Pure Vitamin C 21.5% Advanced Serum contains this as ingredient number 2.
COSRX The Vitamin C 23 Serum contains this as ingredient number 2.
Sodium 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 HyaluronateBy WishTrend Pure Vitamin C 21.5% Advanced Serum contains this as ingredient number 5.
COSRX The Vitamin C 23 Serum contains this as ingredient number 11.
Panthenol (also referred to as pro-vitamin B5) is a common ingredient that helps hydrate and soothe the skin.
lt is a humectant, meaning that it helps the skin attract and retain moisture.
Another benefit is the anti-inflammatory abilities. This means that it's great for sensitive, irritation-prone skin.
Once oxidized, panthenol converts to pantothenic acid. Panthothenic acid is found in all living cells.
Learn more about PanthenolBy WishTrend Pure Vitamin C 21.5% Advanced Serum contains this as ingredient number 6.
COSRX The Vitamin C 23 Serum contains this as ingredient number 6.
Allantoin 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 AllantoinBy WishTrend Pure Vitamin C 21.5% Advanced Serum contains this as ingredient number 8.
COSRX The Vitamin C 23 Serum contains this as ingredient number 18.
Here's what our community thinks of the ingredients in these two products.
By WishTrend Pure Vitamin C 21.5% Advanced Serum 10 ingredients
COSRX The Vitamin C 23 Serum 34 ingredients
Usage
Here's some more info on how this product is used by our community.
When to use
By WishTrend Pure Vitamin C 21.5% Advanced Serum 10 ingredients
COSRX The Vitamin C 23 Serum 34 ingredients
Reviews
Here's what our community thinks
By WishTrend Pure Vitamin C 21.5% Advanced Serum 10 ingredients
COSRX The Vitamin C 23 Serum 34 ingredients
ChienYun_CY
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...
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 when you first spread it on, but it slowly goes away after awhile.
laila.21
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...
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.
Alternatives
Our Dupe Finder has found 21 potential alternatives that have similar ingredients to By WishTrend Pure Vitamin C 21.5% Advanced Serum.
See 21 alternativesOur Dupe Finder has found 37 potential alternatives that have similar ingredients to COSRX The Vitamin C 23 Serum.
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