Koh Gen Do All In One Refresh Gel

Koh Gen Do All In One Refresh Gel

Efficacy62/100IrritancyHigh

Works for

Moisturizing
Glycerin, Diglycerin + 9 more
Works
What the product description says
“This cooling, hydrating moisture gel absorbs easily while refreshing the senses with a gentle bergamot scent.”
Source: Beautylish

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

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).

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~3.8–4.6%
DiglycerinKey active· HumectantEffect: HighHelps attract water to the upper layer of the skin~3–3.6%
Porphyra yezoensis extractKey activeEffect: MediumHelps attract water to the upper layer of the skin and might have some anti-oxidant properties~0.45–0.65%
Glycosyl trehaloseKey activeEffect: High~0.25–0.5%
Hydrogenated starch hydrolysateKey active· HumectantEffect: MediumHelps to attract water to the upper layer of the skin. Can add sweet taste to lip products~0.25–0.45%
Glucosyl hesperidinKey active· HumectantEffect: MediumMight be able to neutralize free radicals in skin. Also works as a humectant~0.25–0.45%
Pentylene glycol· EmollientEffect: LowUsed to preserve products, dissolve other ingredients and create a nice product texture~2.4–2.9%
Aloe barbadensis leaf juice powderEffect: LowTraditionally used to treat sunburns, dermatitis and inflammation, but evidence for its effectiveness is lacking. The extract can contain humectants that help attract water into the skin~0.45–0.7%
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~0.3–0.6%
Aloe barbadensis leaf extractEffect: Low, below effective doseTraditionally used to treat sunburns, dermatitis and inflammation, but evidence for its effectiveness is lacking. The extract can contain humectants that help attract water into the skin~0.6–0.9%
Aloe barbadensis leaf juiceEffect: Low, below effective doseTraditionally used to treat sunburns, dermatitis and inflammation, but evidence for its effectiveness is lacking. The extract can contain humectants that help attract water into the skin~0.5–0.75%
Anti-blemish
Rosmarinus officinalis leaf extract, Aloe barbadensis leaf juice
Not delivered
What the product description says
“Baobab & Tea Tree Extracts have been shown to help improve acne conditions, reduce redness, irritation, itching and swelling”
Source: Beautylish

This product contains ingredients (rosmarinus officinalis leaf extract) that could help reduce blemishes and clogged pores in theory, but there is not enough evidence that they actually work.

Rosmarinus officinalis leaf extractEffect: MediumCan be helpful in reducing inflammation in skin, including inflamed acne. It can be irritating~1.3–1.6%
Aloe barbadensis leaf juiceEffect: Low, below effective doseTraditionally used to treat sunburns, dermatitis and inflammation, but evidence for its effectiveness is lacking. The extract can contain humectants that help attract water into the skin~0.5–0.75%

Can it cause trouble?

Irritancy
7 strong irritants: Lavandula angustifolia flower extract, Rosmarinus officinalis leaf extract + 5 more — patch-test recommended
High risk
We flagged 13 ingredients with irritancy potential. Severity depends on your sensitivity threshold; the table lists the worst offenders first.
IngredientFunctionIrritationEst. amount
Lavandula angustifolia flower extractEssential oil that can be irritatingHigh~1.6–2%est.
Rosmarinus officinalis leaf extractCan be helpful in reducing inflammation in skin, including inflamed acne. It can be irritatingHigh~1.3–1.6%est.
Salvia officinalis leaf extractSage leaf extract. It can be irritatingHigh~1.2–1.4%est.
Perilla ocymoides leaf extractA plant extract that might help neutralize free radicals in skin but solid research is lacking. Contains a number of volatile compounds and could be irritatingHigh~0.95–1.15%est.
Zingiber officinale root extractA plant extract that can contain an irritating essential oil. Might have some anti-oxidant effect, but evidence is lackingHigh~0.55–0.85%est.
Citrus aurantium bergamia fruit oilA plant oil with a high content of volatile compounds that can irritate the skin and lead to allergic reactions. Can lead to photosensitivityHigh~0.3–0.5%est.
Melaleuca alternifolia leaf oilAn essential oil that can be irritating. Has some anti-bacterial propertiesHigh~0.25–0.5%est.
Pentylene glycolUsed to preserve products, dissolve other ingredients and create a nice product textureMedium~2.4–2.9%est.
Aloe barbadensis leaf extractTraditionally used to treat sunburns, dermatitis and inflammation, but evidence for its effectiveness is lacking. The extract can contain humectants that help attract water into the skinMedium~0.6–0.9%est.
Aloe barbadensis leaf juiceTraditionally used to treat sunburns, dermatitis and inflammation, but evidence for its effectiveness is lacking. The extract can contain humectants that help attract water into the skinMedium~0.5–0.75%est.
Aloe barbadensis leaf juice powderTraditionally used to treat sunburns, dermatitis and inflammation, but evidence for its effectiveness is lacking. The extract can contain humectants that help attract water into the skinMedium~0.45–0.7%est.
Citric acidCan work as an exfoliant but is typically used to adjust the product pHMedium~0.15–0.25%est.
Potassium hydroxideUsed to adjust the pH level of productsMedium~0.1–0.2%est.
Comedogenic
1 ingredient rated 2 or more on the 0–5 pore-clogging scale
1 flagged
These ingredients have a comedogenic rating of 2 or more on a 0–5 scale; the table shows each one's rating. In leave-on products they can clog pores in acne-prone skin.
IngredientFunctionRatingEst. amount
Porphyra yezoensis extractHelps attract water to the upper layer of the skin and might have some anti-oxidant properties3/5~0.45–0.65%est.

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Ingredients

Filter by role to see what each ingredient is doing.

Water~45–55%
Formula
Irritation risk
Low

Plain old water

More about Water
Propanediol~5.2–6.4%
Formula
Irritation risk
Low

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

More about Propanediol
Glycerin~3.8–4.6%
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
Diglycerin~3–3.6%
Key active
Irritation risk
Low
Works for
Moisturizing

Helps attract water to the upper layer of the skin

More about Diglycerin
Pentylene glycol~2.4–2.9%
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
Betula platyphylla japonica juice~1.9–2.3%
Formula
Lavandula angustifolia flower extract~1.6–2%
Irritant · high
Irritation risk
High

Essential oil that can be irritating

More about Lavandula angustifolia flower extract
Rosmarinus officinalis leaf extract~1.3–1.6%
Key activeIrritant · high
Irritation risk
High
Works for
Anti-blemishAntibacterialAnti-oxidation

Can be helpful in reducing inflammation in skin, including inflamed acne. It can be irritating

More about Rosmarinus officinalis leaf extract
Salvia officinalis leaf extract~1.2–1.4%
Irritant · high
Irritation risk
High

Sage leaf extract. It can be irritating

More about Salvia officinalis leaf extract
Perilla ocymoides leaf extract~0.95–1.15%
Irritant · high
Irritation risk
High
Works for
Anti-oxidation

A plant extract that might help neutralize free radicals in skin but solid research is lacking. Contains a number of volatile compounds and could be irritating

More about Perilla ocymoides leaf extract
Artemisia princeps leaf extract~0.7–1.05%
Formula
Zingiber officinale root extract~0.55–0.85%
Irritant · high
Irritation risk
High
Works for
Anti-oxidation

A plant extract that can contain an irritating essential oil. Might have some anti-oxidant effect, but evidence is lacking

More about Zingiber officinale root extract
Aloe barbadensis leaf extract~0.6–0.9%
Irritant · medium
Irritation risk
Medium
Works for
Moisturizing

Traditionally used to treat sunburns, dermatitis and inflammation, but evidence for its effectiveness is lacking. The extract can contain humectants that help attract water into the skin

More about Aloe barbadensis leaf extract
Aloe barbadensis leaf juice~0.5–0.75%
Irritant · medium
Irritation risk
Medium
Works for
MoisturizingAnti-inflammatoryReduces rednessAntibacterialReduces irritationAnti-blemishAnti-aging

Traditionally used to treat sunburns, dermatitis and inflammation, but evidence for its effectiveness is lacking. The extract can contain humectants that help attract water into the skin

More about Aloe barbadensis leaf juice
Aloe barbadensis leaf juice powder~0.45–0.7%
Irritant · medium
Irritation risk
Medium
Works for
Moisturizing

Traditionally used to treat sunburns, dermatitis and inflammation, but evidence for its effectiveness is lacking. The extract can contain humectants that help attract water into the skin

More about Aloe barbadensis leaf juice powder
Cladosiphon okamuranus extract~0.45–0.7%
Formula
Saccharina longicruris extract~0.45–0.65%
Formula
Porphyra yezoensis extract~0.45–0.65%
Key activeComedogenic 3/5
Irritation risk
Low
Comedogenicity
3/5
Works for
MoisturizingAnti-oxidation

Helps attract water to the upper layer of the skin and might have some anti-oxidant properties

More about Porphyra yezoensis extract
Hydrolyzed adansonia digitata extract~0.45–0.65%
Formula
Butylene glycol~0.3–0.6%
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
Citrus aurantium bergamia fruit oil~0.3–0.5%
Irritant · high
Irritation risk
High

A plant oil with a high content of volatile compounds that can irritate the skin and lead to allergic reactions. Can lead to photosensitivity

More about Citrus aurantium bergamia fruit oil
Melaleuca alternifolia leaf oil~0.25–0.5%
Irritant · high
Irritation risk
High
Works for
Antibacterial

An essential oil that can be irritating. Has some anti-bacterial properties

More about Melaleuca alternifolia leaf oil
Glycosyl trehalose~0.25–0.5%
Key active
Irritation risk
Low
Works for
Moisturizing
More about Glycosyl trehalose
Hydrogenated starch hydrolysate~0.25–0.45%
Key active
Irritation risk
Low
Works for
Moisturizing

Helps to attract water to the upper layer of the skin. Can add sweet taste to lip products

More about Hydrogenated starch hydrolysate
Glucosyl hesperidin~0.25–0.45%
Key active
Irritation risk
Low
Works for
MoisturizingAnti-oxidation

Might be able to neutralize free radicals in skin. Also works as a humectant

More about Glucosyl hesperidin
Maltodextrin~0.25–0.4%
Formula
Irritation risk
Low
Works for
Mattifying

Used to stabilize the product formulation and can help absorb oil

More about Maltodextrin
Ppg-6-decyltetradeceth-30~0.25–0.45%
Formula
Irritation risk
Low
Works for
Cleansing
More about Ppg-6-decyltetradeceth-30
Chlorophyllin-copper complex~0.15–0.3%
Formula
Citric acid~0.15–0.25%
Irritant · medium
Irritation risk
Medium

Can work as an exfoliant but is typically used to adjust the product pH

More about Citric acid
Xanthan gum~0.15–0.25%
Formula
Irritation risk
Low
Works for
Cleansing

Used to create a thicker product consistency

More about Xanthan gum
Carbomer~0.1–0.2%
Formula
Irritation risk
Low
Works for
Cleansing

Helps create a thicker or gel-like product texture. It is not a surfactant but can be used in gentle cleansing formulations

More about Carbomer
Potassium hydroxide~0.1–0.2%
Irritant · medium
Irritation risk
Medium

Used to adjust the pH level of products

More about Potassium hydroxide
Pentasodium pentetate~0.05–0.1%
Formula
Irritation risk
Low

Helps preserve the product formulation

More about Pentasodium pentetate
Phenoxyethanol~0.1–0.15%
Formula
Irritation risk
Low

A preservative. It helps prevent bacterial growth in cosmetic products

More about Phenoxyethanol
Ingredient list view

Water, Propanediol, Glycerin, Diglycerin, Pentylene glycol, Betula platyphylla japonica juice, Lavandula angustifolia flower extract, Rosmarinus officinalis leaf extract, Salvia officinalis leaf extract, Perilla ocymoides leaf extract, Artemisia princeps leaf extract, Zingiber officinale root extract, Aloe barbadensis leaf extract, Aloe barbadensis leaf juice, Aloe barbadensis leaf juice powder, Cladosiphon okamuranus extract, Saccharina longicruris extract, Porphyra yezoensis extract, Hydrolyzed adansonia digitata extract, Butylene glycol, Citrus aurantium bergamia fruit oil, Melaleuca alternifolia leaf oil, Glycosyl trehalose, Hydrogenated starch hydrolysate, Glucosyl hesperidin, Maltodextrin, Ppg-6-decyltetradeceth-30, Chlorophyllin-copper complex, Citric acid, Xanthan gum, Carbomer, Potassium hydroxide, Pentasodium pentetate, Phenoxyethanol

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Beautylish3.17 oz
$105.00
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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
Koh Gen DoAll In One Refresh GelYOUR PRODUCTZETTOC STYLEYukikko All In One GelOrbisU Gel MoisturizerKoseMoisture Mild Perfect Gel
Match—41%41%40%
Price$105.00$32.40−$72.60$33.30−$71.70$17.10−$87.90
Shared key ingredients—3 of 43 of 43 of 4
Key difference—Tea Seed OilPanthenolDimethicone
Irritancy High High Low Low
Drying alcohol————
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More alternatives: JuJu Aquamoist All In One Moisturizing GelRohto Mentholatum Hada Labo Koi-Gokujyun Hydrating Jelly

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Sources cited in this review

Every concentration estimate and effectiveness label is anchored to one of these 13 studies and safety reviews.

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Koh Gen Do All In One Refresh Gel
Koh Gen DoAll In One Refresh Gel

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

As an Amazon Associate, WIMJ earns from qualifying purchases.