Product summary
"COSRX - BHA Blackhead Power Liquid" is effective for: Moisturizing, Anti-blemish, Evens skin tone and Exfoliation
Ingredient callouts
- A good concentration of Niacinamide (1.40% - 2.10%). Niacinamide is a well-studied multi-tasking active. It is stable, and can work well in almost any hydrating formulation. There is solid evidence that Niacinamide can help support skin barrier, regulate oil production and reduce acne and clogged pores. It also helps to fight photodamage and improve the skin tone, reducing pigmentation marks.
- Humectants (sodium hyaluronate 0.15% - 0.65% and arginine 0.60% - 1.40%). These ingredients help attract water to the upper layer of the skin and improve the skin hydration.
Price
The product retails from 17.59£ up to 26.00£ in the United Kingdom, for 2499.99KSH in Kenya, from 14.04$ up to 26.00$ in the United States, from 23.21CA$ up to 45.50CA$ in Canada and from 18.50A$ up to 32.80A$ in Australia.
For a detailed price comparison: click here.
Benefits
Promise: Exfoliation
What does the product description say?
COSRX BHA Blackhead Power Liquid is a highly effective chemical exfoliator that refines the look of enlarged pores and leaves skin brighter.
This product can help exfoliate the skin. In other words, it helps break down the bonds between dead cells on the surface of the skin and speed up the skin turnover. Skin often appears softer and brighter after exfoliation, but overdoing it can result in disrupted skin barrier. The following ingredient is doing the exfoliating job in this product: betaine salicylate.
| Ingredient | Effectiveness | Concentration | Irritancy |
|---|---|---|---|
| betaine salicylate | HIGH |  |  |
Promise: Moisturizing
What does the product description say?
This product helps remove excess sebum and blackheads so you can find healthy and hydrated skin.
This product can help improve hydration of the skin with the two types of ingredients.
The first type is called “humectants”:
these ingredients help attract water.
When humectants are on the surface of the skin, they “pull in” the moisture from the outside environment, or from
within deeper layers of the skin. The following ingredients in this product do the job:
arginine, sodium hyaluronate.
This product also contains ingredients called “occlusives”. They help reduce the speed with which our skin loses moisture to the outside environment. These ingredients also help soften the upper layer of the skin, so it feels less tight and nicer to the touch. The following ingredients in this product do the job: arginine.
The following ingredients in this product are especially good for supporting the skin barrier and helping with the hydration level: niacinamide
| Ingredient | Effectiveness | Concentration | Irritancy |
|---|---|---|---|
| niacinamide | HIGH | | |
| arginine | HIGH | | |
| sodium hyaluronate | HIGH | | |
Other benefit: Anti-blemish
What does the product description say?
BHA Blackhead Power Liquid
This product can help reduce breakouts and clogged pores because it contains the following ingredient: niacinamide. This ingredient is used for treating acne and can have a noticeable effect.
In addition, this product contains betaine salicylate. It can help in reducing blemishes, even though it is less effective.
| Ingredient | Effectiveness | Concentration | Irritancy |
|---|---|---|---|
| niacinamide | HIGH | | |
| betaine salicylate | HIGH | | |
Other benefit: Evens skin tone
What does the product description say?
It also helps brighten dark spots thanks to the addition of niacinamide.
This product can help reduce hypepigmentation and even out the skin tone because it contains the following effective ingredients: betaine salicylate, niacinamide
Keep in mind that you would need to apply any topical skincare targetted at hypigmentation consistently for a couple of months to get a result. No topical skincare product can help get rid of hyperpigmentation (including post-acne marks and age spots) instantly.
| Ingredient | Effectiveness | Concentration | Irritancy |
|---|---|---|---|
| niacinamide | HIGH | | |
Honesty check
How honest is this product?
| Promise | Can it deliver? |
|---|---|
| Moisturizing | |
| Exfoliation |
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Potential irritants
| Ingredient | Irritancy | Skin Benefit |
|---|---|---|
| ethyl hexanediol | |  |
| betaine salicylate | | |
| betaine salicylate | | |
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| WIMJ similarity score | 83% | 72% | 71% | 70% | 65% | 63% | 58% | 58% | 58% | 57% | |
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Ingredients & concentrations
- niacinamide
- panthenol
- arginine
- betaine salicylate
- betaine salicylate
- sodium hyaluronate
- +2 more
| Ingredient | Estimated concentration |
|---|---|
| 25% - 37% | |
| 7.3% - 11% | |
| Exfoliating acid, a "relative" of salicylic acid | |
| 4.3% - 6.4% | |
| 2.8% - 4.2% | |
| Used to create a nice product texture and help delivery of other ingredients. Might be somewhat helpful in attracting water to the upper layer of the skin | |
| 2% - 3% | |
| Exfoliating acid, a "relative" of salicylic acid | |
| 1.4% - 2.1% | |
| Is proven to be effective in reducing blemishes, evening out skin tone and helping to improve lines and wrinkles. It helps the skin to repair sun damage, calm down inflammation and keep maintain good levels of moisture. The concentration of about 2% is effective for supporting the skin barrier and evening out the skin tone. Concentration of 4-6% is better for helping with acne and balancing the sebum production | |
| 0.05% - 0.3% | |
| A preservative | |
| 0.6% - 1.4% | |
| An amino acid that is naturally present in skin and helps keep it hydrated. When used together with AHAs, it can reduce their irritating effect on the skin | |
| 0.2% - 0.75% | |
| Helps attract water to the upper layer of the skin and can help improve skin barrier function | |
| 0.15% - 0.65% | |
| One of the best moisturizing ingredients. Attracts water into the upper layer of the skin | |
| 0.05% - 0.25% | |
| Used to create a thicker product consistency | |
| 0.05% - 0.15% | |
| Used to dissolve other ingredients. Might be irritating | |
Show more | |
Sources
- Niacinamide - mechanisms of action and its topical use in dermatology
- Gehring, W. (2004). Nicotinic acid/niacinamide and the skin. Journal of Cosmetic Dermatology, 3(2), 88–93. doi:10.1111/j.1473-2130.2004.00115.x
- The influence of alkane chain length on the skin irritation potential of 1,2-alkanediols
- Skin moisturizing effects of panthenol-based formulations