COSRX The Niacinamide 15 Serum Versus By WishTrend Pure Vitamin C 21.5% Advanced Serum
Updated on August 23, 2024
Overview
What they are
These products are both cruelty-free, fungal acne (malassezia) safe, and reef safe serums. They have a total of 3 ingredients in common
Suited For
They're both likely to be good for anti aging, dry skin, brightening skin, sensitive skin, reducing pores, scar healing and dark spots
Free From
They both do not contain any harsh alcohols, common allergens, oils, 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 Niacinamide 15 Serum 15 ingredients
By WishTrend Pure Vitamin C 21.5% Advanced Serum 10 ingredients
About this product
About this product
At a glance
Click on any of the items below to learn more
COSRX The Niacinamide 15 Serum 15 ingredients
By WishTrend Pure Vitamin C 21.5% Advanced Serum 10 ingredients
Key Ingredients
Benefits
Key Ingredients
Benefits
Ingredients Side-by-side
Ingredients Explained
These ingredients are found in both products.
Ingredients higher up in an ingredient list are typically present in a larger amount.
1,2-Hexanediol is a synthetic liquid and another multi-functional powerhouse.Â
It is a:
- Humectant, drawing moisture into the skin
- Emollient, helping to soften skin
- Solvent, dispersing and stabilizing formulas
- Preservative booster, enhancing the antimicrobial activity of other preservativesÂ
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.
On the technical side of things, xanthan gum is a polysaccharide - a combination consisting of multiple sugar molecules bonded together.
Xanthan gum is a pretty common and great ingredient. It is a natural, non-toxic, non-irritating ingredient that is also commonly used in food products.
Learn more about Xanthan GumAllantoin 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 AllantoinIngredient Ratings
Here's what our community thinks of the ingredients in these products.
When to use
COSRX The Niacinamide 15 Serum 15 ingredients
By WishTrend Pure Vitamin C 21.5% Advanced Serum 10 ingredients


Reviews
Here's what our community thinks
COSRX The Niacinamide 15 Serum 15 ingredients
warning!!! this can be SO irritating *if you use it wrong*
do not use with
-ahas
-bhas
-vit c
-other niacinamide products
-start on dry skin first as wet skin absorbs more
tip: sandwich it. i put a little centella ampoule before and after this serum to prevent irritation. if used properly, this serum is a life changer! i struggle with closed comedones and acne scars and this helped Show more
HG acne scar serum
Initially, this serum had helped fade away most of my old acne scars. After while, I thought it didn't do anything more for my new acne growth. So I ditched this serum for about 3 months and tried other new niacinamide products. I REGRET it. Soon after, I got more and more whiteheads and acne. My skin texture becomes uneven and dry. The new acne scars couldn't fade away at all. Show more
By WishTrend Pure Vitamin C 21.5% Advanced Serum 10 ingredients
Very unstabl, Oxidases instantly.