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Product Comparison

Here's our complete breakdown comparing the ingredients, attributes, and more of COSRX BHA Blackhead Power Liquid versus Some By Mi AHA BHA PHA 30 Days Miracle Toner .

Last updated on July 18, 2023. Published on February 23, 2021

Overview

What they are

These products are both reef safe . They have a total of 3 ingredients in common

Cool Features

They both contain BHA, hyaluronic acid and niacinamide

Suited For

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

Free From

They both do not contain any harsh alcohols, 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 South Korean Brand South Korea

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 AHA BHA PHA 30 Days Miracle Toner

Starts at $11.29

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
PHA
Niacinamide
Hyaluronic Acid

Benefits

Hydrating
Good For Oily Skin (3)
Redness Reducing (2)
Reduces Irritation
Reduces Large Pores (2)
Anti-Aging
Dark Spots
Scar Healing (3)
Acne Fighting (2)
Brightening (3)

Concerns

Drying (2)
Irritating
Rosacea
Eczema
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Ingredients Side-by-side

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

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Ingredients Explained

These ingredients are found in both products.

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

1
What it does: Humectant, Masking, Skin Conditioning, Solvent
Community Rating: Mixed

Butylene Glycol (or BG) is used within cosmetic products for a few different reasons:

  • It is a solvent, meaning that it helps to dissolve other ingredients. This also enhances the absorption of the product into one's skin.
  • It is a humectant, which means that it helps attract moisture into the skin.
  • It helps improve product application.

Overall, Butylene Glycol is a safe and well-rounded ingredient. It is unlikely to irritate skin, and works well with pretty much all other ingredients.

COSRX BHA Blackhead Power Liquid contains this as ingredient number 2.

Some By Mi AHA BHA PHA 30 Days Miracle Toner contains this as ingredient number 2.

2
What it does: Smoothing
Community Rating: Loved

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

COSRX BHA Blackhead Power Liquid contains this as ingredient number 4.

Some By Mi AHA BHA PHA 30 Days Miracle Toner contains this as ingredient number 5.

3
What it does: Humectant, Skin Conditioning
Community Rating: Loved

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 Hyaluronate

COSRX BHA Blackhead Power Liquid contains this as ingredient number 8.

Some By Mi AHA BHA PHA 30 Days Miracle Toner contains this as ingredient number 13.

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

60% are loved or liked
30% have mixed ratings
10% are disliked or very disliked
0% have no rating yet
50% are loved or liked
15% have mixed ratings
19% are disliked or very disliked
15% 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 reviews
tsmeu's Avatar'
Dec 21, 2023

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...

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.

Light
No Scent
Doesn't Work
sword's Avatar'
Dec 20, 2023

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...

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
kyniwi's Avatar'
Jan 28, 2024

I love this! It’s such a mild exfoliant but it does the job. It’s not irritating and honestly can be somewhat hydrating (as hydrating as an exfoliant can be). It’s not fungal acne safe BUT it has not broken me out in that way so far....

I love this! It’s such a mild exfoliant but it does the job. It’s not irritating and honestly can be somewhat hydrating (as hydrating as an exfoliant can be). It’s not fungal acne safe BUT it has not broken me out in that way so far. I’ve seen a lot of improvement in my texture and redness since I started using this!

Great Value
Light
Absorbs Well
Works Well

Some By Mi AHA BHA PHA 30 Days Miracle Toner 26 ingredients

3.8 /5
from 14 reviews
RasberryIce's Avatar'
Mar 3, 2024

Texture: watery
Smell: pleasant but a bit strong
Honestly kinda mid.
I feel like it helps mild acne but is a no for sensitive skin and people who's barrier is f up. The combination of three different exfoliating acids in miniscule...

Texture: watery
Smell: pleasant but a bit strong
Honestly kinda mid.
I feel like it helps mild acne but is a no for sensitive skin and people who's barrier is f up. The combination of three different exfoliating acids in miniscule concentrations feels all over the place and can further sensitivity. I think what's actually working in the product is the 2% niacinamide.
Overall it's okay, would recommend to people who're oily, with very mild acne or few comedomes. But anyone with sensitive or/and dry skin stay away, cause it's not for you and has fragrance.
P.s. Do NOT use this with the whole 30 days miracle line, it WILL destroy your skin barrier in those 30 days. I know cause it happened to me.

Great Value
Drying
Irritating
Light
Absorbs Well
Strong Scent
laila.21's Avatar'
Jan 20, 2024

It didn't do much for me as my skin felt the same with or without it, plus I didn't like how it always foamed up when I even tap it in.

It didn't do much for me as my skin felt the same with or without it, plus I didn't like how it always foamed up when I even tap it in.

Light
Light Scent
Doesn't Work
lisamae's Avatar'
May 25, 2023

Period

Period

Alternatives

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

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