Based on the ingredient analysis by CreamScan, these are the key benefits you can expect from using La Roche-Posay Effaclar Duo Acne Treatment with Benzoyl Peroxide:
Lightly moisturizing: La Roche-Posay Effaclar Duo Acne Treatment with Benzoyl Peroxide has a moisturizing rating of 3.5 out of 10.
Is it more humectant or occlusive? Purely humectant. It has zero occlusivity (we didn't find any occlusive ingredients on the ingredient list) and a high humectancy of 7.0 out of 10, due to the high content of Glycerin (est. ≈4.0%) and Pentylene Glycol (est. ≈3.0%).
Tip: Studies suggest that humectants alone do not moisturize the skin. We recommend applying a product with some occlusive ingredients after the use of this one.
Please refer to the Ratings section below for details of the moisturizing rating calculation.
Est. %
The Estimated % is our algorithm-based assumption about an ingredient's concentration in a formula. Learn more The Estimated % is our algorithm-based assumption about an ingredient's concentration in a formula. Learn more | Ingredient | Origin | Functions |
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70 | Water The most used ingredient in skincare. Its concentration defines the product texture: rich creams may have about 50% of water while a light jelly about 90%. Water doesn’t moisturize the skin by itself and is used in skincare as a solvent for other ingredients. Water The most used ingredient in skincare. Its concentration defines the product texture: rich creams may have about 50% of water while a light jelly about 90%. Water doesn’t moisturize the skin by itself and is used in skincare as a solvent for other ingredients. | Naturally occurring These are ingredients initially present in nature, such as elements (Zinc, Gold, or Silver), minerals, or water. Naturally occurring These are ingredients initially present in nature, such as elements (Zinc, Gold, or Silver), minerals, or water. | Formula helper
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9 | Isostearyl Alcohol Description is coming soon Isostearyl Alcohol Description is coming soon | Synthetic, All kinds of ingredients formulated or produced by a chemical process, or those that have a chemical modification in their structure. Synthetic, All kinds of ingredients formulated or produced by a chemical process, or those that have a chemical modification in their structure. Animal Ingredients derived from animals (including birds, fish, crustaceans, mollusks, and insects) or produced by animals (e.g. dairy- and egg-derived ingredients, bee products, silk, pearls, etc.) Animal Ingredients derived from animals (including birds, fish, crustaceans, mollusks, and insects) or produced by animals (e.g. dairy- and egg-derived ingredients, bee products, silk, pearls, etc.) | Emollient, Emollients fill the micro-cracks in the skin and leave it feeling soft and pleasant to the touch. Emollients are often mistakenly perceived as moisturizing ingredients. Emollient, Emollients fill the micro-cracks in the skin and leave it feeling soft and pleasant to the touch. Emollients are often mistakenly perceived as moisturizing ingredients. Formula helper
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5.5 Verified concentration of an ingredient as indicated on its package, in the ingredient list, or on the official website. Verified concentration of an ingredient as indicated on its package, in the ingredient list, or on the official website. | Benzoyl Peroxide Description is coming soon Benzoyl Peroxide Description is coming soon | Anti-Acne, Anti-acne agents treat acne blemishes, blackheads, and whiteheads. Anti-Acne, Anti-acne agents treat acne blemishes, blackheads, and whiteheads. Formula helper
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4 | Glycerin The most popular moisturizing ingredient in the world. It is a powerful humectant – cheap yet very effective. Glycerin The most popular moisturizing ingredient in the world. It is a powerful humectant – cheap yet very effective. | Botanical, Ingredients derived from plants, mosses, and lichens: extracts, oils, powders, juices and other types of processed plant materials. Botanical, Ingredients derived from plants, mosses, and lichens: extracts, oils, powders, juices and other types of processed plant materials. Synthetic, All kinds of ingredients formulated or produced by a chemical process, or those that have a chemical modification in their structure. Synthetic, All kinds of ingredients formulated or produced by a chemical process, or those that have a chemical modification in their structure. Animal Ingredients derived from animals (including birds, fish, crustaceans, mollusks, and insects) or produced by animals (e.g. dairy- and egg-derived ingredients, bee products, silk, pearls, etc.) Animal Ingredients derived from animals (including birds, fish, crustaceans, mollusks, and insects) or produced by animals (e.g. dairy- and egg-derived ingredients, bee products, silk, pearls, etc.) | Moisturizing (Humectant), Humectants are moisturizing ingredients that draw moisture to the skin, either from deeper layers or from the environment (when it's humid). Moisturizing (Humectant), Humectants are moisturizing ingredients that draw moisture to the skin, either from deeper layers or from the environment (when it's humid). Emollient, Emollients fill the micro-cracks in the skin and leave it feeling soft and pleasant to the touch. Emollients are often mistakenly perceived as moisturizing ingredients. Emollient, Emollients fill the micro-cracks in the skin and leave it feeling soft and pleasant to the touch. Emollients are often mistakenly perceived as moisturizing ingredients. Fragrance, Fragrance ingredients add scent to a product or hide ('mask') the undesired aroma of other ingredients. Fragrance, Fragrance ingredients add scent to a product or hide ('mask') the undesired aroma of other ingredients. Formula helper
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3 | Pentylene Glycol A naturally or synthetically derived preservative that exhibits effective antifungal and antibacterial traits. It also acts as a booster for more traditional preservatives. Pentylene glycol can also serve as a moisturizing humectant and solvent. Pentylene Glycol A naturally or synthetically derived preservative that exhibits effective antifungal and antibacterial traits. It also acts as a booster for more traditional preservatives. Pentylene glycol can also serve as a moisturizing humectant and solvent. | Botanical, Ingredients derived from plants, mosses, and lichens: extracts, oils, powders, juices and other types of processed plant materials. Botanical, Ingredients derived from plants, mosses, and lichens: extracts, oils, powders, juices and other types of processed plant materials. Synthetic, All kinds of ingredients formulated or produced by a chemical process, or those that have a chemical modification in their structure. Synthetic, All kinds of ingredients formulated or produced by a chemical process, or those that have a chemical modification in their structure. Petroleum Ingredients derived from petroleum, also called crude oil. Crude oil deposits were obtained from the remains of ancient organisms, such as plants, algae, and bacteria. Petroleum Ingredients derived from petroleum, also called crude oil. Crude oil deposits were obtained from the remains of ancient organisms, such as plants, algae, and bacteria. | Moisturizing (Humectant), Humectants are moisturizing ingredients that draw moisture to the skin, either from deeper layers or from the environment (when it's humid). Moisturizing (Humectant), Humectants are moisturizing ingredients that draw moisture to the skin, either from deeper layers or from the environment (when it's humid). Preservative, Preservatives prevent the growth of bacteria and fungi in a product. Preservative, Preservatives prevent the growth of bacteria and fungi in a product. Formula helper
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2.5 | Silica A widely used cosmetic ingredient with the same chemical composition as the sand found on beaches. A common function of silica is its ability to control viscosity. In certain chemical forms, it can effectively thicken cream-style products. Silica A widely used cosmetic ingredient with the same chemical composition as the sand found on beaches. A common function of silica is its ability to control viscosity. In certain chemical forms, it can effectively thicken cream-style products. | Naturally occurring These are ingredients initially present in nature, such as elements (Zinc, Gold, or Silver), minerals, or water. Naturally occurring These are ingredients initially present in nature, such as elements (Zinc, Gold, or Silver), minerals, or water. | Abrasive, Abrasives 'physically' exfoliate the skin (i.e., manually remove dead skin cells) by rubbing against its surface. Abrasive, Abrasives 'physically' exfoliate the skin (i.e., manually remove dead skin cells) by rubbing against its surface. Formula helper
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2 | Carbomer A synthetic ingredient with the ability to gel water. When used in emulsions, such as lotions and creams, carbomer can also act as an emulsion stabilizer. Carbomer A synthetic ingredient with the ability to gel water. When used in emulsions, such as lotions and creams, carbomer can also act as an emulsion stabilizer. | Synthetic All kinds of ingredients formulated or produced by a chemical process, or those that have a chemical modification in their structure. Synthetic All kinds of ingredients formulated or produced by a chemical process, or those that have a chemical modification in their structure. | Formula helper
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0.3 | Capryloyl Salicylic Acid A derivative of salicylic acid, with bigger and more lipid-soluble molecules. This makes it more powerful and safer than salicylic acid. It is used as an exfoliating and peeling agent. Capryloyl Salicylic Acid A derivative of salicylic acid, with bigger and more lipid-soluble molecules. This makes it more powerful and safer than salicylic acid. It is used as an exfoliating and peeling agent. | Botanical, Ingredients derived from plants, mosses, and lichens: extracts, oils, powders, juices and other types of processed plant materials. Botanical, Ingredients derived from plants, mosses, and lichens: extracts, oils, powders, juices and other types of processed plant materials. Synthetic All kinds of ingredients formulated or produced by a chemical process, or those that have a chemical modification in their structure. Synthetic All kinds of ingredients formulated or produced by a chemical process, or those that have a chemical modification in their structure. | Anti-Acne, Anti-acne agents treat acne blemishes, blackheads, and whiteheads. Anti-Acne, Anti-acne agents treat acne blemishes, blackheads, and whiteheads. Exfoliant, Exfoliants remove dead skin cells from the surface of the skin via acid-based chemical reactions (e.g., AHA or BHA). Exfoliant, Exfoliants remove dead skin cells from the surface of the skin via acid-based chemical reactions (e.g., AHA or BHA). Soothing Soothing ingredients reduce the signs of sensitivity in irritated and inflamed skin. This includes anti-inflammatory ingredients, anti-itch agents, and topical analgesics. Soothing Soothing ingredients reduce the signs of sensitivity in irritated and inflamed skin. This includes anti-inflammatory ingredients, anti-itch agents, and topical analgesics. |
0.3 | Potassium Hydroxide A very alkaline ingredient, meaning that it has a high pH. Potassium hydroxide is therefore useful in bringing a low pH in a cosmetic product up to a more neutral, skin-safe level. Potassium Hydroxide A very alkaline ingredient, meaning that it has a high pH. Potassium hydroxide is therefore useful in bringing a low pH in a cosmetic product up to a more neutral, skin-safe level. | Synthetic All kinds of ingredients formulated or produced by a chemical process, or those that have a chemical modification in their structure. Synthetic All kinds of ingredients formulated or produced by a chemical process, or those that have a chemical modification in their structure. | Formula helper
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0.3 | Tocopheryl Acetate An antioxidant derivative of tocopherol (vitamin E). It helps to protect cells from free radicals and UV damage through the conversion to active vitamin E in the skin. It is more stable than tocopherol. Tocopheryl Acetate An antioxidant derivative of tocopherol (vitamin E). It helps to protect cells from free radicals and UV damage through the conversion to active vitamin E in the skin. It is more stable than tocopherol. | Botanical, Ingredients derived from plants, mosses, and lichens: extracts, oils, powders, juices and other types of processed plant materials. Botanical, Ingredients derived from plants, mosses, and lichens: extracts, oils, powders, juices and other types of processed plant materials. Synthetic All kinds of ingredients formulated or produced by a chemical process, or those that have a chemical modification in their structure. Synthetic All kinds of ingredients formulated or produced by a chemical process, or those that have a chemical modification in their structure. | Antioxidant Antioxidants reduce the oxidative stress caused by free radicals and prevent accelerated skin aging. Antioxidant Antioxidants reduce the oxidative stress caused by free radicals and prevent accelerated skin aging. |
0.3 | Acrylates/C10-30 Alkyl Acrylate Crosspolymer A synthetic ingredient that is used to thicken water and alcohol. It results in a more lightweight formula and is commonly found in gel products. Acrylates/C10-30 Alkyl Acrylate Crosspolymer A synthetic ingredient that is used to thicken water and alcohol. It results in a more lightweight formula and is commonly found in gel products. | Synthetic All kinds of ingredients formulated or produced by a chemical process, or those that have a chemical modification in their structure. Synthetic All kinds of ingredients formulated or produced by a chemical process, or those that have a chemical modification in their structure. | Formula helper
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0.3 | Disodium EDTA A synthetic chelator that helps to maintain the look and smell of a product by 'locking up' troublesome metal ions. Disodium EDTA A synthetic chelator that helps to maintain the look and smell of a product by 'locking up' troublesome metal ions. | Synthetic All kinds of ingredients formulated or produced by a chemical process, or those that have a chemical modification in their structure. Synthetic All kinds of ingredients formulated or produced by a chemical process, or those that have a chemical modification in their structure. | Formula helper
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0.3 | Epilobium Angustifolium Flower/Leaf/Stem Extract An extract from a plant known in North America as Fireweed and in Europe as Willowherb. It is commonly used in traditional herbal medicine. Due to its abundant content of tannins and flavonoids, it has great astringent and antioxidant properties. Epilobium Angustifolium Flower/Leaf/Stem Extract An extract from a plant known in North America as Fireweed and in Europe as Willowherb. It is commonly used in traditional herbal medicine. Due to its abundant content of tannins and flavonoids, it has great astringent and antioxidant properties. | Botanical Ingredients derived from plants, mosses, and lichens: extracts, oils, powders, juices and other types of processed plant materials. Botanical Ingredients derived from plants, mosses, and lichens: extracts, oils, powders, juices and other types of processed plant materials. | Antioxidant, Antioxidants reduce the oxidative stress caused by free radicals and prevent accelerated skin aging. Antioxidant, Antioxidants reduce the oxidative stress caused by free radicals and prevent accelerated skin aging. Astringent Astringent ingredients provide the skin with a tightened feeling, help to reduce the appearance of large pores, and assist in the healing of small cuts and wounds. Astringent Astringent ingredients provide the skin with a tightened feeling, help to reduce the appearance of large pores, and assist in the healing of small cuts and wounds. |
70 Water Function: Formula helper Formula helper
Formula helper Formula helper
Origin: Naturally occurring Naturally occurring These are ingredients initially present in nature, such as elements (Zinc, Gold, or Silver), minerals, or water. Naturally occurring Naturally occurring These are ingredients initially present in nature, such as elements (Zinc, Gold, or Silver), minerals, or water. |
9 Isostearyl Alcohol Function: Emollient, Emollient Emollients fill the micro-cracks in the skin and leave it feeling soft and pleasant to the touch. Emollients are often mistakenly perceived as moisturizing ingredients. Emollient, Emollient Emollients fill the micro-cracks in the skin and leave it feeling soft and pleasant to the touch. Emollients are often mistakenly perceived as moisturizing ingredients. Formula helper Formula helper
Formula helper Formula helper
Origin: Synthetic, Synthetic All kinds of ingredients formulated or produced by a chemical process, or those that have a chemical modification in their structure. Synthetic, Synthetic All kinds of ingredients formulated or produced by a chemical process, or those that have a chemical modification in their structure. Animal Animal Ingredients derived from animals (including birds, fish, crustaceans, mollusks, and insects) or produced by animals (e.g. dairy- and egg-derived ingredients, bee products, silk, pearls, etc.) Animal Animal Ingredients derived from animals (including birds, fish, crustaceans, mollusks, and insects) or produced by animals (e.g. dairy- and egg-derived ingredients, bee products, silk, pearls, etc.) |
5.5 Verified concentration of an ingredient as indicated on its package, in the ingredient list, or on the official website. Verified concentration of an ingredient as indicated on its package, in the ingredient list, or on the official website. Benzoyl Peroxide Function: Anti-Acne, Anti-Acne Anti-acne agents treat acne blemishes, blackheads, and whiteheads. Anti-Acne, Anti-Acne Anti-acne agents treat acne blemishes, blackheads, and whiteheads. Formula helper Formula helper
Formula helper Formula helper
Origin: |
4 Glycerin Function: Moisturizing (Humectant), Moisturizing (Humectant) Humectants are moisturizing ingredients that draw moisture to the skin, either from deeper layers or from the environment (when it's humid). Moisturizing (Humectant), Moisturizing (Humectant) Humectants are moisturizing ingredients that draw moisture to the skin, either from deeper layers or from the environment (when it's humid). Emollient, Emollient Emollients fill the micro-cracks in the skin and leave it feeling soft and pleasant to the touch. Emollients are often mistakenly perceived as moisturizing ingredients. Emollient, Emollient Emollients fill the micro-cracks in the skin and leave it feeling soft and pleasant to the touch. Emollients are often mistakenly perceived as moisturizing ingredients. Fragrance, Fragrance Fragrance ingredients add scent to a product or hide ('mask') the undesired aroma of other ingredients. Fragrance, Fragrance Fragrance ingredients add scent to a product or hide ('mask') the undesired aroma of other ingredients. Formula helper Formula helper
Formula helper Formula helper
Origin: Botanical, Botanical Ingredients derived from plants, mosses, and lichens: extracts, oils, powders, juices and other types of processed plant materials. Botanical, Botanical Ingredients derived from plants, mosses, and lichens: extracts, oils, powders, juices and other types of processed plant materials. Synthetic, Synthetic All kinds of ingredients formulated or produced by a chemical process, or those that have a chemical modification in their structure. Synthetic, Synthetic All kinds of ingredients formulated or produced by a chemical process, or those that have a chemical modification in their structure. Animal Animal Ingredients derived from animals (including birds, fish, crustaceans, mollusks, and insects) or produced by animals (e.g. dairy- and egg-derived ingredients, bee products, silk, pearls, etc.) Animal Animal Ingredients derived from animals (including birds, fish, crustaceans, mollusks, and insects) or produced by animals (e.g. dairy- and egg-derived ingredients, bee products, silk, pearls, etc.) |
3 Pentylene Glycol Function: Moisturizing (Humectant), Moisturizing (Humectant) Humectants are moisturizing ingredients that draw moisture to the skin, either from deeper layers or from the environment (when it's humid). Moisturizing (Humectant), Moisturizing (Humectant) Humectants are moisturizing ingredients that draw moisture to the skin, either from deeper layers or from the environment (when it's humid). Preservative, Preservative Preservatives prevent the growth of bacteria and fungi in a product. Preservative, Preservative Preservatives prevent the growth of bacteria and fungi in a product. Formula helper Formula helper
Formula helper Formula helper
Origin: Botanical, Botanical Ingredients derived from plants, mosses, and lichens: extracts, oils, powders, juices and other types of processed plant materials. Botanical, Botanical Ingredients derived from plants, mosses, and lichens: extracts, oils, powders, juices and other types of processed plant materials. Synthetic, Synthetic All kinds of ingredients formulated or produced by a chemical process, or those that have a chemical modification in their structure. Synthetic, Synthetic All kinds of ingredients formulated or produced by a chemical process, or those that have a chemical modification in their structure. Petroleum Petroleum Ingredients derived from petroleum, also called crude oil. Crude oil deposits were obtained from the remains of ancient organisms, such as plants, algae, and bacteria. Petroleum Petroleum Ingredients derived from petroleum, also called crude oil. Crude oil deposits were obtained from the remains of ancient organisms, such as plants, algae, and bacteria. |
2.5 Silica Function: Abrasive, Abrasive Abrasives 'physically' exfoliate the skin (i.e., manually remove dead skin cells) by rubbing against its surface. Abrasive, Abrasive Abrasives 'physically' exfoliate the skin (i.e., manually remove dead skin cells) by rubbing against its surface. Formula helper Formula helper
Formula helper Formula helper
Origin: Naturally occurring Naturally occurring These are ingredients initially present in nature, such as elements (Zinc, Gold, or Silver), minerals, or water. Naturally occurring Naturally occurring These are ingredients initially present in nature, such as elements (Zinc, Gold, or Silver), minerals, or water. |
2 Carbomer Function: Formula helper Formula helper
Formula helper Formula helper
Origin: Synthetic Synthetic All kinds of ingredients formulated or produced by a chemical process, or those that have a chemical modification in their structure. Synthetic Synthetic All kinds of ingredients formulated or produced by a chemical process, or those that have a chemical modification in their structure. |
0.3 Capryloyl Salicylic Acid Function: Anti-Acne, Anti-Acne Anti-acne agents treat acne blemishes, blackheads, and whiteheads. Anti-Acne, Anti-Acne Anti-acne agents treat acne blemishes, blackheads, and whiteheads. Exfoliant, Exfoliant Exfoliants remove dead skin cells from the surface of the skin via acid-based chemical reactions (e.g., AHA or BHA). Exfoliant, Exfoliant Exfoliants remove dead skin cells from the surface of the skin via acid-based chemical reactions (e.g., AHA or BHA). Soothing Soothing Soothing ingredients reduce the signs of sensitivity in irritated and inflamed skin. This includes anti-inflammatory ingredients, anti-itch agents, and topical analgesics. Soothing Soothing Soothing ingredients reduce the signs of sensitivity in irritated and inflamed skin. This includes anti-inflammatory ingredients, anti-itch agents, and topical analgesics. Origin: Botanical, Botanical Ingredients derived from plants, mosses, and lichens: extracts, oils, powders, juices and other types of processed plant materials. Botanical, Botanical Ingredients derived from plants, mosses, and lichens: extracts, oils, powders, juices and other types of processed plant materials. Synthetic Synthetic All kinds of ingredients formulated or produced by a chemical process, or those that have a chemical modification in their structure. Synthetic Synthetic All kinds of ingredients formulated or produced by a chemical process, or those that have a chemical modification in their structure. |
0.3 Potassium Hydroxide Function: Formula helper Formula helper
Formula helper Formula helper
Origin: Synthetic Synthetic All kinds of ingredients formulated or produced by a chemical process, or those that have a chemical modification in their structure. Synthetic Synthetic All kinds of ingredients formulated or produced by a chemical process, or those that have a chemical modification in their structure. |
0.3 Tocopheryl Acetate Function: Antioxidant Antioxidant Antioxidants reduce the oxidative stress caused by free radicals and prevent accelerated skin aging. Antioxidant Antioxidant Antioxidants reduce the oxidative stress caused by free radicals and prevent accelerated skin aging. Origin: Botanical, Botanical Ingredients derived from plants, mosses, and lichens: extracts, oils, powders, juices and other types of processed plant materials. Botanical, Botanical Ingredients derived from plants, mosses, and lichens: extracts, oils, powders, juices and other types of processed plant materials. Synthetic Synthetic All kinds of ingredients formulated or produced by a chemical process, or those that have a chemical modification in their structure. Synthetic Synthetic All kinds of ingredients formulated or produced by a chemical process, or those that have a chemical modification in their structure. |
0.3 Acrylates/C10-30 Alkyl Acrylate Crosspolymer Function: Formula helper Formula helper
Formula helper Formula helper
Origin: Synthetic Synthetic All kinds of ingredients formulated or produced by a chemical process, or those that have a chemical modification in their structure. Synthetic Synthetic All kinds of ingredients formulated or produced by a chemical process, or those that have a chemical modification in their structure. |
0.3 Disodium EDTA Function: Formula helper Formula helper
Formula helper Formula helper
Origin: Synthetic Synthetic All kinds of ingredients formulated or produced by a chemical process, or those that have a chemical modification in their structure. Synthetic Synthetic All kinds of ingredients formulated or produced by a chemical process, or those that have a chemical modification in their structure. |
0.3 Epilobium Angustifolium Flower/Leaf/Stem Extract Function: Antioxidant, Antioxidant Antioxidants reduce the oxidative stress caused by free radicals and prevent accelerated skin aging. Antioxidant, Antioxidant Antioxidants reduce the oxidative stress caused by free radicals and prevent accelerated skin aging. Astringent Astringent Astringent ingredients provide the skin with a tightened feeling, help to reduce the appearance of large pores, and assist in the healing of small cuts and wounds. Astringent Astringent Astringent ingredients provide the skin with a tightened feeling, help to reduce the appearance of large pores, and assist in the healing of small cuts and wounds. Origin: Botanical Botanical Ingredients derived from plants, mosses, and lichens: extracts, oils, powders, juices and other types of processed plant materials. Botanical Botanical Ingredients derived from plants, mosses, and lichens: extracts, oils, powders, juices and other types of processed plant materials. |