Versus

Cos De BAHA S2 Salicylic Acid 2% Liquid Versus COSRX BHA Blackhead Power Liquid

Exfoliator
Exfoliator
Korean Brand South Korea
Korean Brand South Korea

Updated on October 10, 2024

Overview

What they are

These products are both cruelty-free and reef safe exfoliators. They have a total of 3 ingredients in common

Cool Features

They both contain BHA and niacinamide

Suited For

They're both likely to be good for fighting acne, anti aging, brightening skin, sensitive skin, oily skin, reducing pores, scar healing and dark spots

Free From

They both do not contain any harsh alcohols, fragrances, 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

Concerns

Key Ingredients

Benefits

Concerns

Ingredients Explained

These ingredients are found in both products.

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

Antimicrobial

Betaine Salicylate is considered a salicylic acid alternative.

Limited studies exist proving this ingredient to be a complete alternative to salicylic acid. Based on existing research, this ingredient does not penetrate as deeply and is not shown to be as effective.

However, this makes it a great choice for those with sensitive skin or need gentle BHA action.

This ingredient is created using betaine and salicylic acid.

This ingredient is oil-soluble and is most effective at a pH range of 3.8-4.2.

Learn more about Betaine Salicylate
Smoothing

Niacinamide 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 Niacinamide
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 

When to use

130 Routines
28% use in am
72% use in pm
61% use every day
When to use See routines that use it ->
1,944 Routines
25% use in am
74% use in pm
57% use every day
When to use See routines that use it ->

Reviews

Here's what our community thinks

Cos De BAHA S2 Salicylic Acid 2% Liquid 11 ingredients

5.0 /5
from 3 ratings
Great Value (2) Works Well (2) Absorbs Well (1)
ivorycat's avatar

Cami

9 months ago
Review

I actually love this exfoliating serum for my very oily skin! I use it 3 times a week and only use two baby drops of it that I apply mostly on my T zone. The mornings after I use it, my skin feels lighter and purified. Try not to mix this serum with retinoids or vitamin C, although I mixed it with only derivatives (was told it’d be ok by employees), my skin felt a bit sensitive when I did.

#great value
#absorbs well
#works well
Tonephone_641's avatar

Tonephone_641

1 year ago
Review

This products exfoliates and reduces my fungal acne overnight. It's affordable too

COSRX BHA Blackhead Power Liquid 10 ingredients

3.7 /5
from 39 ratings
Absorbs Well (13) Light (12) Works Well (11)
sword's avatar

sword

1 year ago
Review

Gently Exfoliates
I decided to try a leave-on exfoliator rather than an exfoliating cleanser because I noticed I kept getting irritation from exfoliating cleansers. This Cosrx one is really gentle and pleasant. It takes a few minutes for it to absorb into my skin, but afterwards I get very little irritation and my skin texture and pore appearance have definitely improved.

#great value
#light
#no scent
#works well
v22's avatar

v22

6 months ago
Review

My favourite COSRX product. Pores appear smaller after a few hours. Was not expecting sebaceous filaments to disappear. I usually use one pump of liquid and put it directly on my T-zone and leave it to do its magic for about a few hours before applying moisturiser. (Putting moisturiser right after reduces its effectiveness from my personal experience.)

#great value
#light
#absorbs well
#no scent