COSRX AHA 7 Whitehead Power Liquid

COSRX AHA 7 Whitehead Power Liquid

Efficacy100/100IrritancyLow

Works for

Anti-aging
Glycolic acid, Niacinamide
Works well
What the product description says
“Harnessing the powers of 7% Glycolic Acid and Apple Water (an ingredient containing natural Alpha Hydroxy Acids), the lightweight exfoliant expertly removes dead skin cells and pore-clogging impurities, whilst helping to minimise the appearance of whiteheads, fine lines and roughness.”
Source: Mankind

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

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.

Glycolic acidKey activeEffect: HighAn alpha-hydroxy acid (AHA) that helps to remove the dead skin cells on the surface of the skin reveling a more even, smoother complexation. It is also able to stimulate collagen production with long-term use. Could help to reduce pore congestion. It can be irritating to the skin. Apply sunscreen daily if using products with glycolic acid~4.7–7.1%
NiacinamideKey activeEffect: HighIs 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~2.3–3.5%
Moisturizing
Niacinamide, Panthenol + 2 more
Works well
What the product description says
“Perfect for dry to combination skin, this liquid hydrates the skin, while gently exfoliating it.”
Source: Recreate Yourself

This product contains good ingredients to attract water to the upper layer of the skin. These ingredients are called "humectants": sodium hyaluronate, butylene glycol.

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. If the air is dry, humectants can speed up the moisture loss from the skin. This is why it is a good idea to use another product on top of this one to help "seal in" the moisture (look for ingredients like dimethicone, squalane, oils and butters).

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

NiacinamideHeroEffect: HighIs 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~2.3–3.5%
PanthenolHero· HumectantEffect: HighHelps attract water to the upper layer of the skin and can help improve skin barrier function~0.35–0.8%
Sodium hyaluronateKey active· HumectantEffect: HighOne of the best moisturizing ingredients. Attracts water into the upper layer of the skin~0.1–0.4%
Butylene glycol· HumectantEffect: LowUsed 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~8.3–12.5%
Exfoliation
Glycolic acid
Works well
What the product description says
“Formulated with 7% Glycolic Acid (AHA), AHA 7 Whitehead Power Liquid gently exfoliates skin and helps reveal a radiant even-toned complexion.”
Source: Recreate Yourself

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: glycolic acid.

Glycolic acidKey activeEffect: HighAn alpha-hydroxy acid (AHA) that helps to remove the dead skin cells on the surface of the skin reveling a more even, smoother complexation. It is also able to stimulate collagen production with long-term use. Could help to reduce pore congestion. It can be irritating to the skin. Apply sunscreen daily if using products with glycolic acid~4.7–7.1%
Anti-blemish
Niacinamide, Glycolic acid
Works well
What the product description says
“AHA 7 Whitehead Power Liquid”
Source: Yesstyle

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.

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

NiacinamideHeroEffect: HighIs 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~2.3–3.5%
Glycolic acidKey activeEffect: MediumAn alpha-hydroxy acid (AHA) that helps to remove the dead skin cells on the surface of the skin reveling a more even, smoother complexation. It is also able to stimulate collagen production with long-term use. Could help to reduce pore congestion. It can be irritating to the skin. Apply sunscreen daily if using products with glycolic acid~4.7–7.1%
Evens skin tone
Glycolic acid, Niacinamide
Works well
What the product description says
“Formulated with 7% Glycolic Acid (AHA), AHA 7 Whitehead Power Liquid gently exfoliates skin and helps reveal a radiant even-toned complexion.”
Source: Recreate Yourself

This product can help reduce hypepigmentation and even out the skin tone because it contains the following effective ingredients: glycolic acid, 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.

Glycolic acidKey activeEffect: HighAn alpha-hydroxy acid (AHA) that helps to remove the dead skin cells on the surface of the skin reveling a more even, smoother complexation. It is also able to stimulate collagen production with long-term use. Could help to reduce pore congestion. It can be irritating to the skin. Apply sunscreen daily if using products with glycolic acid~4.7–7.1%
NiacinamideKey activeEffect: HighIs 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~2.3–3.5%

Can it cause trouble?

Irritancy
3 flagged ingredients
Low risk
We flag 3 ingredients with irritancy potential; the product's overall irritancy is low. The table lists each ingredient's own rating.
IngredientFunctionIrritationEst. amount
Glycolic acidAn alpha-hydroxy acid (AHA) that helps to remove the dead skin cells on the surface of the skin reveling a more even, smoother complexation. It is also able to stimulate collagen production with long-term use. Could help to reduce pore congestion. It can be irritating to the skin. Apply sunscreen daily if using products with glycolic acidHigh~4.7–7.1%est.
Ethyl hexanediolUsed to dissolve other ingredients. Might be irritatingHigh~0.5–1.1%est.
1,2-hexanediolA preservativeMedium~0.1–0.45%est.
Comedogenic
Clean of flagged comedogenic ingredients
None flagged

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Ingredients

Filter by role to see what each ingredient is doing.

Pyrus malus fruit water~25–37%
Formula
Butylene glycol~8.3–12.5%
Formula
Irritation risk
Low
Works for
Moisturizing

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

More about Butylene glycol
Glycolic acid~4.7–7.1%
Key activeIrritant · high
Irritation risk
High
Works for
ExfoliationAnti-agingEvens skin toneAnti-blemish

An alpha-hydroxy acid (AHA) that helps to remove the dead skin cells on the surface of the skin reveling a more even, smoother complexation. It is also able to stimulate collagen production with long-term use. Could help to reduce pore congestion. It can be irritating to the skin. Apply sunscreen daily if using products with glycolic acid

More about Glycolic acid
Water~3.4–5.1%
Formula
Irritation risk
Low

Plain old water

More about Water
Niacinamide~2.3–3.5%
Hero · Moisturizing, Anti-blemish
Irritation risk
Low
Works for
Anti-blemishAnti-agingMoisturizingEvens skin toneReduces irritationReduces rednessAntibacterialAnti-inflammatory

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

More about Niacinamide
Sodium hydroxide~1.6–2.3%
Formula
Irritation risk
Low

Used to adjust the product's pH

More about Sodium hydroxide
1,2-hexanediol~0.1–0.45%
Irritant · medium
Irritation risk
Medium

A preservative

More about 1,2-hexanediol
Ethyl hexanediol~0.5–1.1%
Irritant · high
Irritation risk
High

Used to dissolve other ingredients. Might be irritating

More about Ethyl hexanediol
Panthenol~0.35–0.8%
Hero · Moisturizing
Irritation risk
Low
Works for
MoisturizingReduces rednessReduces irritation

Helps attract water to the upper layer of the skin and can help improve skin barrier function

More about Panthenol
Sodium hyaluronate~0.1–0.4%
Key active
Irritation risk
Low
Works for
Moisturizing

One of the best moisturizing ingredients. Attracts water into the upper layer of the skin

More about Sodium hyaluronate
Xanthan gum~0.05–0.25%
Formula
Irritation risk
Low
Works for
Cleansing

Used to create a thicker product consistency

More about Xanthan gum
Ingredient list view

Pyrus malus fruit water, Butylene glycol, Glycolic acid, Water, Niacinamide, Sodium hydroxide, 1,2-hexanediol, Ethyl hexanediol, Panthenol, Sodium hyaluronate, Xanthan gum

Compare prices

Retailers ranked by price — lowest first.

Amazon USPrice as of 11/9 03:33 GMT
$17.14
Buy
Yesstyle
$19.60
Buy
Dermstore3.38 fl. oz
$22.00 Out of stock
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Worth comparing, line by line.

Match % combines shared ingredients, the first five ingredients, shared actives and hero ingredients, irritancy (lower counts in the alternative's favour), texture and body area. Only products in the same routine step are compared.

Side-by-side comparison of this product against its closest alternatives
COSRXAHA 7 Whitehead Power LiquidYOUR PRODUCTBaleaNiacinamide AHA Peeling ConcentrateCreamyTônico clareadorVeracityREGENERATING INFUSION
Match—91%86%85%
Price$19.60———
Shared key ingredients—4 of 43 of 44 of 4
Key difference—Mandelic AcidAlpha-ArbutinHydroxyproline
Irritancy Low Low Low Medium
Drying alcohol————
View product Shop Shop Shop

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Product summary

"COSRX - AHA 7 Whitehead Power Liquid" is effective for: Exfoliation, Anti-aging, Anti-blemish, Moisturizing and Evens skin tone

Ingredient callouts

  • A good concentration of Niacinamide (2.30% - 3.50%). 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.
  • Exfoliating acids (glycolic acid 4.70% - 7.10%). In this concentration, they will have a noticeable exfoliating effect. They can also have an anti-aging effect and stimulate collagen production in a long-run.
  • An effective concentration of Panthenol (pro-vitamin B5) - about 0.35% - 0.80%. Panthenol helps strengthen the skin barrier, improve hydration and reduce inflammation in skin.
  • Humectants (sodium hyaluronate 0.10% - 0.40% and panthenol 0.35% - 0.80%). These ingredients help attract water to the upper layer of the skin and improve the skin hydration.

About the brand

According to Cruelty-Free Kitty "COSRX" is cruelty free and so is its parent company.

Price

The product retails from 11.10£ up to 26.00£ in the United Kingdom, for 2499.99KSH in Kenya, from 19.60$ up to 24.96$ in the United States, from 18.80A$ up to 43.56A$ in Australia and for 37.60CA$ in Canada.

For a detailed price comparison: click here.

COSRX AHA 7 Whitehead Power Liquid
COSRXAHA 7 Whitehead Power Liquid

Affiliate links · As an Amazon Associate, WIMJ earns from qualifying purchases.

As an Amazon Associate, WIMJ earns from qualifying purchases.