COSRX - Low pH BHA Overnight Mask

COSRX Low pH BHA Overnight Mask

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Can it work? Irritants Ingredient concentrations Sources Similar products Q&A Where to buy
WORKS FOR
  • Anti-aging
  • Exfoliation
  • Moisturizing
  • Evens skin tone
  • Anti-oxidation
  • Anti-blemish
  • +3 more
KEY INGREDIENTS
  • gluconolactone
  • lactic acid
  • niacinamide
  • panthenol
  • beeswax
  • betaine
  • betaine salicylate
  • caprylic/capric triglyceride
  • cetearyl alcohol
  • dimethicone
  • elaeis guineensis kernel oil
  • elaeis guineensis oil
  • glycerin
  • helianthus annuus seed oil
  • +11 more
PROMISES
FULFILLED
93 /100
IRRITANCY
MEDIUM
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Formula review

See a mistake?
Promise
What does the product description say?
"9% BHA helps treat and prevent breakouts while visibly brightening discoloration and uneven skin tone."
WIMJ summary

This product might be able to help reduce blemishes and clogged pores because it contains betaine salicylate.

The following ingredient (ingredients) in this product might be helpful, but there is no evidence to confirm that it actually works: gluconolactone

Ingredient Effectiveness Concentration Irritancy
HIGH
meets threshold
MEDIUM
meets threshold
HIGH
does not meet threshold
See a mistake?
WIMJ summary

This product can help reduce and prevent fine lines and wrinkles, improve skin elasticity and firmness because it contains gluconolactone.

Keep in mind that it typically takes at least 6 weeks to notice any results because the changes that are needed to improve fine lines and elasticity happen in the deeper layers of the skin. No topical anti-aging product can “erase” wrinkles or fully reverse signs of aging.

Ingredient Effectiveness Concentration Irritancy
HIGH
meets threshold
HIGH
does not meet threshold
MEDIUM
does not meet threshold
See a mistake?
Promise
What does the product description say?
"9% BHA helps treat and prevent breakouts while visibly brightening discoloration and uneven skin tone."
WIMJ summary

This product can help reduce hypepigmentation and even out the skin tone because it contains the following effective ingredients: betaine salicylate, gluconolactone

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
HIGH
meets threshold
HIGH
does not meet threshold
HIGH
does not meet threshold
See a mistake?
Promise
What does the product description say?
"COSRX Low pH BHA Overnight Mask reveals soft skin overnight by dissolving dullness, blackheads, and whiteheads."
WIMJ summary

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, gluconolactone.

Ingredient Effectiveness Concentration Irritancy
HIGH
meets threshold
HIGH
meets threshold
HIGH
does not meet threshold
See a mistake?
Promise
What does the product description say?
"Great for acne-prone and oily skin, this resurfacing cream mask restores skin moisture while gently balancing the skin."
WIMJ summary

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: betaine, glycerin.

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: beeswax, dimethicone.

The following ingredients in this product are especially good for supporting the skin barrier and helping with the hydration level: panthenol

Ingredient Effectiveness Concentration Irritancy
HIGH
meets threshold
HIGH
meets threshold
HIGH
meets threshold
See a mistake?
WIMJ summary

This product contains antioxidants (gluconolactone) that might be able to help neutralize free radicals in skin to lessen the damage it gets from the UV light (sun). There is not enough evidence to confirm their effectiveness in skin though.

Ingredient Effectiveness Concentration Irritancy
MEDIUM
meets threshold

Potential irritants

Ingredients by volume

Ingredient Estimated concentration
22% - 33%
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
4.8% - 7.2%
A great emollient due to its high linoleic acid content. One of the most effective plant oils in helping skin hydration and repairing skin barrier function
4.5% - 6.7%
One of the best moisturizing ingredients. Naturally present in skin. It attracts water to the upper layer of the skin working as a humectant
3.4% - 5.1%
Helps attract water to the upper layer of the skin and improves the product texture
2.7% - 4%
Helps attract water to the upper layer of the skin and can help improve skin barrier function
2% - 2.9%
A non-drying alcohol. Works as an emollient. Helps water and oil mix together and creates a nice product texture
1.6% - 2.5%
A silicone that helps to reduce water loss from the surface of the skin. Can temporarily "fill in" lines and wrinkles, absorb oil, and create a nice product finish
1.5% - 2.3%
Helps soften the upper layer of the skin
1.1% - 1.7%
Helps soften the upper layer of the skin
0.9% - 1.35%
Forms a protective barrier that holds water and keeps dry skin hydrated. Keeps an emulsion from separating into its oil and liquid components, and increases the thickness of a product. Can be an allergen
0.6% - 1.35%
A polyhydroxy acid (PHA) that helps shed the dead cells from the skin surface revealing smoother skin. Is believed to be genter than AHAs. It helps attract water to the upper layer of the skin and can stimulate production of skin's own hyaluronic acid resulting in improved hydration levels. It has been shown to be helpful against acne and clogged pores if used consistently (e.g over a period of 12 weeks) in high enough concentration. It can help reduce fine lines and wrinkles and improve skin tone with long-term application. Can help neutralize free radicals
0.4% - 0.95%
A gelling agent that thickens the product consistency and leaves the skin with a velvety finish
0.4% - 0.9%
Helps oil and water mix together
0.35% - 0.8%
Helps oil and water mix together
0.3% - 0.75%
A good mix of fatty acids that forms a protective layer on the skin. Improves the shelf life of products. Derived from coconut and glycerin
0.4% - 0.9%
A preservative
0.15% - 0.7%
Exfoliating acid, a "relative" of salicylic acid
0.15% - 0.65%
A preservative
0.15% - 0.6%
An exfoliating and moisturizing alpha-hydroxy acid (AHA). Typically causes less irritation than other AHAs, for example, glycolic acid. At high concentrations (about 15%), lactic acid can help reduce lines and wrinkles. Recent studies show that lactic acid can support the "good" bacteria living on skin's surface (healthy skin microbiom)
0.15% - 0.6%
Plain old water
0.15% - 0.5%
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
0.1% - 0.45%
Used to create a thicker product consistency
0.1% - 0.4%
Used to adjust the product's pH
0.1% - 0.35%
Used to dissolve other ingredients. Might be irritating
0.1% - 0.3%
An essential oil that can be irritating. Has some anti-bacterial properties
0.05% - 0.25%

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