COSRX Low pH Good Night Soft Peeling Gel

COSRX Low pH Good Night Soft Peeling Gel

Efficacy100/100IrritancyMedium

Works for

Moisturizing
Lactobionic acid, Glycerin + 8 more
Works well
What the product description says
“At the same time, three kinds of hyaluronic acid and 2 kinds of naturally derived flower extracts draw in and hold moisture to hydrate and soothe, which leaves behind brighter, smoother skin with a dewy glow.”
Source: Soko Glam

This product contains good ingredients to attract water to the upper layer of the skin. These ingredients are called "humectants": glycerin, hyaluronic acid.

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: lactobionic acid

Lactobionic acidHeroEffect: HighA polyhydroxy acid (PHA) that helps shed dead cells from the surface of the skin revealing a smoother, more even skin. PHAs tend to be gentler on the skin compared to AHAs (for example, glycolic acid). It also has hydrating properties and helps attract water to the upper layer of the skin. It can help calm down inflammation in skin and support restoration of the barrier function. It has an anti-oxidant effect as well. It can help reduce fine line, wrinkles and improve skin elasticity~0.15–0.55%
GlycerinKey active· HumectantEffect: HighOne of the best moisturizing ingredients. Naturally present in skin. It attracts water to the upper layer of the skin working as a humectant~2.8–4.1%
Hydrolyzed hyaluronic acidKey active· HumectantEffect: HighOne of the best moisturizing ingredients. Attracts water into the upper layer of the skin. A version of it is naturally present in skin~0.1–0.4%
Hyaluronic acidKey active· HumectantEffect: HighOne of the best moisturizing ingredients. Attracts water into the upper layer of the skin. Naturally present in skin. Typically has large molecule size unless advertised otherwise on the product label. Helps support skin's barrier function and may help to reduce inflammation~0.1–0.45%
Lactobacillus/soybean ferment extractKey activeEffect: MediumA fermentation product created by bacteria Lactobacillus out of soybean. The fermented product helps to attract water to the upper layer of the skin and has anti-bacterial properties. It might be helpful in calming down inflammation and could be helpful in evening out skin tone, but studies are lacking~0.1–0.35%
Sodium hyaluronateKey active· HumectantEffect: HighOne of the best moisturizing ingredients. Attracts water into the upper layer of the skin~0.05–0.3%
Rosa damascena flower water· HumectantEffect: LowUsed to add a nice rose smell to the product. Might help attract water to the upper layer of the skin and have some anti-oxidant effect. Can be irritating~2.1–3.1%
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~1.4–2.2%
Pentylene glycol· EmollientEffect: LowUsed to preserve products, dissolve other ingredients and create a nice product texture~0.2–0.75%
NiacinamideUnder-dosedIs 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~0.35–0.85%
Exfoliation
Lactobionic acid, Papain
Works well
What the product description says
“Low pH Good Night Soft Peeling Gel”
Source: Soko Glam

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: lactobionic acid.

Lactobionic acidKey activeEffect: HighA polyhydroxy acid (PHA) that helps shed dead cells from the surface of the skin revealing a smoother, more even skin. PHAs tend to be gentler on the skin compared to AHAs (for example, glycolic acid). It also has hydrating properties and helps attract water to the upper layer of the skin. It can help calm down inflammation in skin and support restoration of the barrier function. It has an anti-oxidant effect as well. It can help reduce fine line, wrinkles and improve skin elasticity~0.15–0.55%
PapainEffect: LowAn enzyme extracted from papaya fruit. Can have an exfoliating effect on the skin. Can be irritating~0.1–0.5%
Anti-oxidation
Side benefit · Lactobionic acid, Camellia japonica flower extract + 1 more
Works well

This product contains antioxidants (lactobionic acid) that can help neutralize free radicals in skin. By doing so, they can lessen the damage the skin gets from the UV light (sun).

The following ingredients - camellia japonica flower extract also can have an antioxidant effect, but there is less evidence to confirm their effectiveness in skin.

Lactobionic acidKey activeEffect: HighA polyhydroxy acid (PHA) that helps shed dead cells from the surface of the skin revealing a smoother, more even skin. PHAs tend to be gentler on the skin compared to AHAs (for example, glycolic acid). It also has hydrating properties and helps attract water to the upper layer of the skin. It can help calm down inflammation in skin and support restoration of the barrier function. It has an anti-oxidant effect as well. It can help reduce fine line, wrinkles and improve skin elasticity~0.15–0.55%
Camellia japonica flower extractKey activeEffect: MediumA plant extract that might help neutralize free radicals in skin~0.05–0.25%
Rosa damascena flower waterEffect: LowUsed to add a nice rose smell to the product. Might help attract water to the upper layer of the skin and have some anti-oxidant effect. Can be irritating~2.1–3.1%
Anti-aging
Side benefit · Lactobionic acid, Hyaluronic acid + 1 more
Works well

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

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.

Lactobionic acidKey activeEffect: HighA polyhydroxy acid (PHA) that helps shed dead cells from the surface of the skin revealing a smoother, more even skin. PHAs tend to be gentler on the skin compared to AHAs (for example, glycolic acid). It also has hydrating properties and helps attract water to the upper layer of the skin. It can help calm down inflammation in skin and support restoration of the barrier function. It has an anti-oxidant effect as well. It can help reduce fine line, wrinkles and improve skin elasticity~0.15–0.55%
Hyaluronic acidEffect: LowOne of the best moisturizing ingredients. Attracts water into the upper layer of the skin. Naturally present in skin. Typically has large molecule size unless advertised otherwise on the product label. Helps support skin's barrier function and may help to reduce inflammation~0.1–0.45%
NiacinamideUnder-dosedIs 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~0.35–0.85%
Evens skin tone
Side benefit · Lactobionic acid, Niacinamide
Works well

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

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.

Lactobionic acidKey activeEffect: HighA polyhydroxy acid (PHA) that helps shed dead cells from the surface of the skin revealing a smoother, more even skin. PHAs tend to be gentler on the skin compared to AHAs (for example, glycolic acid). It also has hydrating properties and helps attract water to the upper layer of the skin. It can help calm down inflammation in skin and support restoration of the barrier function. It has an anti-oxidant effect as well. It can help reduce fine line, wrinkles and improve skin elasticity~0.15–0.55%
NiacinamideUnder-dosedIs 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~0.35–0.85%

Can it cause trouble?

Irritancy
2 strong irritants: Rosa damascena flower water, Lavandula angustifolia flower water
Medium risk
We flagged 13 ingredients with irritancy potential. Severity depends on your sensitivity threshold; the table lists the worst offenders first.
IngredientFunctionIrritationEst. amount
Rosa damascena flower waterUsed to add a nice rose smell to the product. Might help attract water to the upper layer of the skin and have some anti-oxidant effect. Can be irritatingHigh~2.1–3.1%est.
PapainAn enzyme extracted from papaya fruit. Can have an exfoliating effect on the skin. Can be irritatingHigh~0.1–0.5%est.
Camellia japonica flower extractA plant extract that might help neutralize free radicals in skinHigh~0.05–0.25%est.
Bambusa arundinacea stem powderAbrasive ingredient used for physical exfoliation (scrubing)Medium~5.5–8.2%est.
1,2-hexanediolA preservativeMedium~0.5–1.15%est.
Acrylates/c10-30 alkyl acrylate crosspolymerMaintains the texture of skincare products. Allows the product to spread evenly. Helps oil and water mix togetherMedium~1.1–1.6%est.
HydroxyacetophenoneUsed to increase effectiveness of preservativesMedium~0.8–1.2%est.
EthylhexylglycerinA preservativeMedium~0.3–0.7%est.
Disodium edtaStabilizes the product formulationMedium~0.2–0.75%est.
Pentylene glycolUsed to preserve products, dissolve other ingredients and create a nice product textureMedium~0.2–0.75%est.
Lactobionic acidA polyhydroxy acid (PHA) that helps shed dead cells from the surface of the skin revealing a smoother, more even skin. PHAs tend to be gentler on the skin compared to AHAs (for example, glycolic acid). It also has hydrating properties and helps attract water to the upper layer of the skin. It can help calm down inflammation in skin and support restoration of the barrier function. It has an anti-oxidant effect as well. It can help reduce fine line, wrinkles and improve skin elasticityMedium~0.15–0.55%est.
Sodium metabisulfiteA preservativeMedium~0.1–0.2%est.
Comedogenic
Clean of flagged comedogenic ingredients
None flagged

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Ingredients

Filter by role to see what each ingredient is doing.

Water~40–60%
Formula
Irritation risk
Low

Plain old water

More about Water
Bambusa arundinacea stem powder~5.5–8.2%
Irritant · medium
Irritation risk
Medium

Abrasive ingredient used for physical exfoliation (scrubing)

More about Bambusa arundinacea stem powder
Cellulose~3.9–5.9%
Formula
Irritation risk
Low
Works for
Mattifying

Can be used to help absorb oil as well as add volume and imporve texture of products.

More about Cellulose
Glycerin~2.8–4.1%
Key active
Irritation risk
Low
Works for
Moisturizing

One of the best moisturizing ingredients. Naturally present in skin. It attracts water to the upper layer of the skin working as a humectant

More about Glycerin
Rosa damascena flower water~2.1–3.1%
Irritant · high
Irritation risk
High
Works for
MoisturizingAnti-oxidation

Used to add a nice rose smell to the product. Might help attract water to the upper layer of the skin and have some anti-oxidant effect. Can be irritating

More about Rosa damascena flower water
Propanediol~1.7–2.6%
Formula
Irritation risk
Low

Acts as a solvent for other ingredients. Speeds up the absorption of other ingredients into the skin

More about Propanediol
Butylene glycol~1.4–2.2%
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
1,2-hexanediol~0.5–1.15%
Irritant · medium
Irritation risk
Medium

A preservative

More about 1,2-hexanediol
Acrylates/c10-30 alkyl acrylate crosspolymer~1.1–1.6%
Irritant · medium
Irritation risk
Medium

Maintains the texture of skincare products. Allows the product to spread evenly. Helps oil and water mix together

More about Acrylates/c10-30 alkyl acrylate crosspolymer
Hydroxyacetophenone~0.8–1.2%
Irritant · medium
Irritation risk
Medium

Used to increase effectiveness of preservatives

More about Hydroxyacetophenone
Lavandula angustifolia flower water~0.5–1.1%
Irritant · high
Tromethamine~0.4–0.9%
Formula
Irritation risk
Low

Helps adjust pH in products

More about Tromethamine
Niacinamide~0.35–0.85%
Under-dosed
Irritation risk
Low
Works for
Anti-blemishEvens skin toneMoisturizingAnti-agingReduces irritationReduces rednessAnti-inflammatoryAntibacterial

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
Maltodextrin~0.35–0.75%
Formula
Irritation risk
Low
Works for
Mattifying

Used to stabilize the product formulation and can help absorb oil

More about Maltodextrin
Ethylhexylglycerin~0.3–0.7%
Irritant · medium
Irritation risk
Medium

A preservative

More about Ethylhexylglycerin
Disodium edta~0.2–0.75%
Irritant · medium
Irritation risk
Medium

Stabilizes the product formulation

More about Disodium edta
Pentylene glycol~0.2–0.75%
Irritant · medium
Irritation risk
Medium
Works for
Moisturizing

Used to preserve products, dissolve other ingredients and create a nice product texture

More about Pentylene glycol
Lactobionic acid~0.15–0.55%
Hero · MoisturizingIrritant · medium
Irritation risk
Medium
Works for
Evens skin toneAnti-agingAnti-oxidationExfoliationMoisturizingAnti-inflammatoryAnti-blemish

A polyhydroxy acid (PHA) that helps shed dead cells from the surface of the skin revealing a smoother, more even skin. PHAs tend to be gentler on the skin compared to AHAs (for example, glycolic acid). It also has hydrating properties and helps attract water to the upper layer of the skin. It can help calm down inflammation in skin and support restoration of the barrier function. It has an anti-oxidant effect as well. It can help reduce fine line, wrinkles and improve skin elasticity

More about Lactobionic acid
Papain~0.1–0.5%
Irritant · high
Irritation risk
High
Works for
Exfoliation

An enzyme extracted from papaya fruit. Can have an exfoliating effect on the skin. Can be irritating

More about Papain
Hyaluronic acid~0.1–0.45%
Key active
Irritation risk
Low
Works for
MoisturizingAnti-inflammatoryAnti-aging

One of the best moisturizing ingredients. Attracts water into the upper layer of the skin. Naturally present in skin. Typically has large molecule size unless advertised otherwise on the product label. Helps support skin's barrier function and may help to reduce inflammation

More about Hyaluronic acid
Hydrolyzed hyaluronic acid~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. A version of it is naturally present in skin

More about Hydrolyzed hyaluronic acid
Lactobacillus/soybean ferment extract~0.1–0.35%
Key active
Irritation risk
Low
Works for
Moisturizing

A fermentation product created by bacteria Lactobacillus out of soybean. The fermented product helps to attract water to the upper layer of the skin and has anti-bacterial properties. It might be helpful in calming down inflammation and could be helpful in evening out skin tone, but studies are lacking

More about Lactobacillus/soybean ferment extract
Sodium hyaluronate~0.05–0.3%
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
Sodium metabisulfite~0.1–0.2%
Irritant · medium
Irritation risk
Medium

A preservative

More about Sodium metabisulfite
Lactobacillus/rice ferment~0.05–0.15%
Formula
Camellia japonica flower extract~0.05–0.25%
Key activeIrritant · high
Irritation risk
High
Works for
Anti-oxidation

A plant extract that might help neutralize free radicals in skin

More about Camellia japonica flower extract
Ingredient list view

Water, Bambusa arundinacea stem powder, Cellulose, Glycerin, Rosa damascena flower water, Propanediol, Butylene glycol, 1,2-hexanediol, Acrylates/c10-30 alkyl acrylate crosspolymer, Hydroxyacetophenone, Lavandula angustifolia flower water, Tromethamine, Niacinamide, Maltodextrin, Ethylhexylglycerin, Disodium edta, Pentylene glycol, Lactobionic acid, Papain, Hyaluronic acid, Hydrolyzed hyaluronic acid, Lactobacillus/soybean ferment extract, Sodium hyaluronate, Sodium metabisulfite, Lactobacillus/rice ferment, Camellia japonica flower extract

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Yesstyle
$12.80
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Soko Glam
$16.00 Out of stock
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$16.00
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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
COSRXLow pH Good Night Soft Peeling GelYOUR PRODUCTSome By MiYuja Niacin Brightening Peeling GelHydroPeptideResurface and Repair Peptide Pads - 30 TreatmentsMake P:remPeel Me Radiance Peeling Sleeping Pack
Match—86%81%77%
Price$12.80$11.69−$1.11$93.00+$80.20$7.04−$5.76
Shared key ingredients—3 of 74 of 76 of 7
Key difference—Ascorbyl GlucosideSalicylic AcidAnhydroxylitol
Irritancy Medium Medium Medium High
Drying alcohol——— Contains drying alcohol
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Product summary

"COSRX - Low pH Good Night Soft Peeling Gel" is effective for: Evens skin tone, Moisturizing, Anti-aging and Exfoliation

Ingredient callouts

  • Humectants (sodium hyaluronate 0.05% - 0.30%, hydrolyzed hyaluronic acid 0.10% - 0.40%, hyaluronic acid 0.10% - 0.45% and glycerin 2.80% - 4.10%). 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 17.80A$ up to 22.20A$ in Australia, from 16.00$ up to 17.60$ in the United States and for 22.00£ in the United Kingdom.

For a detailed price comparison: click here.

Sources cited in this review

Every concentration estimate and effectiveness label is anchored to one of these 15 studies and safety reviews.

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COSRX Low pH Good Night Soft Peeling Gel
COSRXLow pH Good Night Soft Peeling Gel

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

As an Amazon Associate, WIMJ earns from qualifying purchases.