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Product Comparison

Here's our complete breakdown comparing the ingredients, attributes, and more of COSRX BHA Blackhead Power Liquid versus Kiehl's Rare Earth Pore Refining Tonic .

Last updated on July 18, 2023. Published on March 10, 2022

Overview

Cool Features

They both contain BHA

Suited For

They're both likely to be good for fighting acne, brightening skin, sensitive skin and oily skin

Free From

They both do not contain any common allergens, fragrances, oils, parabens, silicones 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.

Exfoliator South Korean Brand South Korea
Toner American Brand United States

Exfoliator

Exfoliators are used to exfoliate the skin, or remove dead skin cells from the skin. Exfoliators may be chemical or physical.

Toner

Toners are used as a “last-step” cleanser, a pH balancer, add moisture to the skin, or may help in reducing impurities on the skin. They have a liquid consistency and are usually used after cleansers but before treatments.

Price

Shop

Buy BHA Blackhead Power Liquid

Starts at $12.69
Shop

Buy Rare Earth Pore Refining Tonic

Starts at $17.50

Ingredient Info

Click any item below to learn more and view relevant ingredients.
alcohol-free
silicon-free
fragrance-free
sulfate-free
paraben-free
oil-free
fungal-acne safe
reef-safe
eu-allergen-free
vegan
cruelty-free
ph level
4.85
alcohol-free
silicon-free
fragrance-free
sulfate-free
paraben-free
oil-free
fungal-acne safe
reef-safe
eu-allergen-free
vegan
cruelty-free

At a glance

Click on any of the items below to learn more

Notable Ingredients

BHA
Niacinamide
Hyaluronic Acid

Benefits

Good For Oily Skin (2)
Redness Reducing
Reduces Irritation
Reduces Large Pores (2)
Dark Spots
Acne Fighting
Brightening

Concerns

Rosacea

Notable Ingredients

BHA
Exfoliators (3)

Benefits

Hydrating
Good For Oily Skin
Redness Reducing
Reduces Irritation
Acne Fighting (3)
Brightening (2)

Concerns

Drying (2)
May Worsen Oily Skin
Irritating (2)
Rosacea (3)
Eczema (3)
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Ingredients Side-by-side

Ingredients that are highlighted in purple are present in both products.

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Here's what our community thinks of the ingredients in these two products.

50% are loved or liked
40% have mixed ratings
10% are disliked or very disliked
0% have no rating yet
63% are loved or liked
0% have mixed ratings
31% are disliked or very disliked
6% have no rating yet

Usage

Here's some more info on how this product is used by our community.

When to use

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Reviews

Here's what our community thinks

COSRX BHA Blackhead Power Liquid 10 ingredients

3.9 /5
from 24 ratings
Works Well (4) Great Value (4) Light (4) No Scent (4) Absorbs Well (3) Doesn't Work (2)
sword's avatar

sword

5 months ago · Oily Skin
Review

Gently Exfoliates
I decided to try a leave-on exfoliator rather than an exfoliating cleanser because I noticed I kept getting irritation from...

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.

tsmeu's avatar

tsmeu

4 months ago · Dry Skin
Review

This was only the second BHA product that I ever tried and got this because I just don't enjoy the skin feel of the Paula's Choice 2% BHA liquid...

This was only the second BHA product that I ever tried and got this because I just don't enjoy the skin feel of the Paula's Choice 2% BHA liquid (which I used on/off for years), and this was recommended by fiddysnails who has a similar skin type and concerns to mine. I do like that this leaves no residue but I just don't find this to be very effective.

I have dry combo skin and very rarely deal with breakouts - the only reason I use BHA is to help keep the pores on my nose and chin clear of sebacious filaments. I also use peptides in my routine so I don't want a BHA that I need to use every day, as I haven't been able to find conclusive information on whether acids really make peptides less effective and for now choose to use them on alternate days. I find that this product when used every other day just isn't enough to keep my pores clear of gunk. Maybe my skin just responds better to salicylic acid than to betaine salicylate which this uses.

Kiehl's Rare Earth Pore Refining Tonic 16 ingredients

Rare Earth Pore Refining Tonic hasn't been rated yet.
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Alternatives

Our Dupe Finder has found 6 potential alternatives that have similar ingredients to COSRX BHA Blackhead Power Liquid.

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Our Dupe Finder has found 25 potential alternatives that have similar ingredients to Kiehl's Rare Earth Pore Refining Tonic.

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