La Roche-Posay Effaclar Micellar Water For Oily Skin is a type of skincare product designed to be rinsed off, peeled off, or otherwise removed from the skin. Research confirming the moisturizing, anti-wrinkle, and soothing effects of such products is very limited. Therefore, we do not provide efficacy ratings for these types of skincare products.
However, you can explore the roles of specific ingredients in the Ingredients Explained section below.
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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80 | 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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6 | | 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. | 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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4 | | Formula helper
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3 | Poloxamer 184 A synthetic surfactant that cleanses and emulsifies. Poloxamer 184 A synthetic surfactant that cleanses and emulsifies. | 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. | Cleansing, Cleansing ingredients, also known as surfactants, clear dirt and buildup from the skin. Cleansing, Cleansing ingredients, also known as surfactants, clear dirt and buildup from the skin. Formula helper
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2 | PEG-6 Caprylic/Capric Glycerides A synthetic ingredient that softens the appearance of skin and combines water with oil. PEG-6 Caprylic/Capric Glycerides A synthetic ingredient that softens the appearance of skin and combines water with oil. | 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. | 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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1.5 | 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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1.3 | Polysorbate 80 A non-ionic surfactant, which means that it contains no chemical charges. It can be used as a mild cleansing agent in skin cleansing products but is more commonly used for its emulsifying abilities. Polysorbate 80 A non-ionic surfactant, which means that it contains no chemical charges. It can be used as a mild cleansing agent in skin cleansing products but is more commonly used for its emulsifying abilities. | 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. | 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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1 | Zinc PCA A two-part ingredient: Zinc helps to control sebum and bacteria in acne-prone skin, while skin-identical PCA is a moisturizing humectant. Zinc PCA may even boost collagen production and so is researched as a potential anti-wrinkle ingredient. Zinc PCA A two-part ingredient: Zinc helps to control sebum and bacteria in acne-prone skin, while skin-identical PCA is a moisturizing humectant. Zinc PCA may even boost collagen production and so is researched as a potential anti-wrinkle ingredient. | 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. | 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). Anti-Acne, Anti-acne agents treat acne blemishes, blackheads, and whiteheads. Anti-Acne, Anti-acne agents treat acne blemishes, blackheads, and whiteheads. Anti-Seborrheic Anti-seborrheic ingredients help to treat seborrheic dermatitis. Anti-Seborrheic Anti-seborrheic ingredients help to treat seborrheic dermatitis. | |
0.3 | Sodium Hydroxide An ingredient that is able to bring the pH of a product up, thereby making it less harsh on the skin. Sodium Hydroxide An ingredient that is able to bring the pH of a product up, thereby making it less harsh on the skin. | 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 | BHT An antioxidant ingredient that naturally occurs in green algae and some bacteria or fungi but, for commercial use, is created synthetically. BHT is also used occasionally as a fragrance, where it presents a sweet, camphor-like odor. BHT An antioxidant ingredient that naturally occurs in green algae and some bacteria or fungi but, for commercial use, is created synthetically. BHT is also used occasionally as a fragrance, where it presents a sweet, camphor-like odor. | 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. 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. | |
0.3 | | 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. | Antimicrobial, Antimicrobials prevent the growth of harmful microorganisms on the skin. Antimicrobial, Antimicrobials prevent the growth of harmful microorganisms on the skin. 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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0.3 | Fragrance Under trade secret law, manufacturers have the right not to disclose what exactly went into the fragrance and use the unspecific word Fragrance or Parfum instead. Many fragrances are highly allergenic. Fragrance Under trade secret law, manufacturers have the right not to disclose what exactly went into the fragrance and use the unspecific word Fragrance or Parfum instead. Many fragrances are highly allergenic. | 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.) | 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. | |
80 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. |
6 PEG-7 Caprylic/Capric Glycerides 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
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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. |
4 Poloxamer 124 Function: Formula helper Formula helper
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3 Poloxamer 184 Function: Cleansing, Cleansing Cleansing ingredients, also known as surfactants, clear dirt and buildup from the skin. Cleansing, Cleansing Cleansing ingredients, also known as surfactants, clear dirt and buildup from the skin. Formula helper Formula helper
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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. |
2 PEG-6 Caprylic/Capric Glycerides 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: 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. |
1.5 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.) |
1.3 Polysorbate 80 Function: 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. |
1 Zinc PCA 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). 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. Anti-Seborrheic Anti-Seborrheic Anti-seborrheic ingredients help to treat seborrheic dermatitis. Anti-Seborrheic Anti-Seborrheic Anti-seborrheic ingredients help to treat seborrheic dermatitis. 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 Sodium 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 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 BHT 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. 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. 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 Myrtrimonium Bromide Function: Antimicrobial, Antimicrobial Antimicrobials prevent the growth of harmful microorganisms on the skin. Antimicrobial, Antimicrobial Antimicrobials prevent the growth of harmful microorganisms on the skin. 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. |
0.3 Fragrance Function: 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. 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.) |