Versus

COSRX The Niacinamide 15 Serum Versus By WishTrend Pure Vitamin C 21.5% Advanced Serum

Serum
Serum
Korean Brand South Korea
Korean Brand South Korea

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

Click any item below to learn more and see relevant ingredients

About this product

About this product

At a glance

Click on any of the items below to learn more

Key Ingredients

Benefits

Key Ingredients

Benefits

Ingredients Explained

These ingredients are found in both products.

Ingredients higher up in an ingredient list are typically present in a larger amount.

Skin Conditioning, Solvent

1,2-Hexanediol is a synthetic liquid and another multi-functional powerhouse. 

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 preservatives 
Emulsifying, Emulsion Stabilising, Gel Forming

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 Gum
Skin Conditioning, Skin Protecting, Soothing

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 Allantoin

When to use

745 Routines
45% use in am
55% use in pm
91% use every day
When to use See routines that use it ->
37 Routines
81% use in am
19% use in pm
97% use every day
When to use See routines that use it ->

Reviews

Here's what our community thinks

COSRX The Niacinamide 15 Serum 15 ingredients

3.3 /5
from 12 ratings
Irritating (5) No Scent (5) Doesn't Work (3)
glittertimes's avatar

Ryan 🩷

7 months ago
Review

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

#irritating
#absorbs well
#no scent
#works well
ChienYun_CY's avatar

Chien Yun Ang

1 year ago
Review

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

3.0 /5
from 1 rating
Absorbs Well (1) Light Scent (1) Sticky (1)
MiroslavaBedrozova_812's avatar
Review

Very unstabl, Oxidases instantly.

#absorbs well
#sticky
#light scent