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According to CreamScan analysis, La Roche-Posay Effaclar Micro-Exfoliating Astringent Toner is lightly moisturizing, with a moisturizing rating of 3.0 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 6.0 out of 10, due to the high content of Glycerin (est. ≈4.0%) and Propylene Glycol (est. ≈2.0%).
This humectant-rich product, when used alone as a moisturizer, is well-suited for oily skin, providing moderate hydration in a lightweight, fast-absorbing formula without any occlusive ingredients.
📌 Certain studies suggest that humectants alone may not effectively moisturize the skin. If you use this product as your only moisturizer, we recommend following it with one that contains at least some occlusive ingredients.
But it’s not limited to oily skin - such a humectant enhancement will also positively contribute to the moisturizing efficacy of any skincare routine when used as a step before applying the main moisturizer. This type of formulation is typically used in serums, where a light, fast-absorbing texture is key.
Please refer to the Ratings section below for details of the moisturizing rating calculation.
📌 Please note that this is not a complete list of benefits. We are in the process of enhancing our model to incorporate anti-pigmentation, exfoliation and anti-acne ratings.
While humectants are highly effective at attracting water to the skin, studies (J. N. Kraft, C. W. Lynde) suggest they may not be efficient when used alone.
One major drawback of purely humectant moisturization is that the water attracted by humectants to the upper layers of the skin can evaporate completely into the environment through transepidermal water loss (TEWL). Adding occlusive ingredients helps seal this moisture into the skin and prevent further water loss.
If you’re using La Roche-Posay Effaclar Micro-Exfoliating Astringent Toner as your only moisturizer, consider pairing it with one that contains at least some occlusive ingredients, such as oils, butters, or silicones. These work alongside humectants to create a protective barrier, locking in hydration and ensuring longer-lasting moisturization. The amount of occlusive needed depends on your skin type - the drier the skin, the more occlusives it requires.
If this product is used not as a standalone moisturizer but as part of your skincare routine, such as a toner or serum, it should be applied before your main moisturizer (unless it's a sunscreen), which will provide the necessary occlusivity on top of it.
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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85 | 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 | Alcohol Denat. ![]() Denatured alcohol is ethanol that contains additives that make it unsafe to consume. It is mainly used as a solvent and an antimicrobial agent. A major drawback to alcohol denat. is that it dries out the skin. Alcohol Denat. ![]() Denatured alcohol is ethanol that contains additives that make it unsafe to consume. It is mainly used as a solvent and an antimicrobial agent. A major drawback to alcohol denat. is that it dries out the skin. | 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. 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. 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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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 | Sodium Citrate ![]() A salt of citric acid that has a salty and tart flavor and is used as a fragrance. It is mildly basic, meaning that its addition to a skincare product can adjust the pH upward. Sodium Citrate ![]() A salt of citric acid that has a salty and tart flavor and is used as a fragrance. It is mildly basic, meaning that its addition to a skincare product can adjust the pH upward. | 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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2 | Propylene Glycol ![]() A clear, thick, odorless liquid of synthetic origin. Its main function is to stabilize cosmetic products exposed to varying temperatures. It is also a moderately strong humectant with similar properties to glycerin. Propylene Glycol ![]() A clear, thick, odorless liquid of synthetic origin. Its main function is to stabilize cosmetic products exposed to varying temperatures. It is also a moderately strong humectant with similar properties to glycerin. | 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. | 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). 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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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 | 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 | Citric Acid ![]() A gently exfoliating AHA that helps to remove the top layer of dead skin cells. In comparison to other AHAs, citric acid has been shown to be one of the least effective. It is also very commonly used as a stabilizing and pH-controlling agent. Citric Acid ![]() A gently exfoliating AHA that helps to remove the top layer of dead skin cells. In comparison to other AHAs, citric acid has been shown to be one of the least effective. It is also very commonly used as a stabilizing and pH-controlling 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. | 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). 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. | |
85 ![]() 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 ![]() Alcohol Denat. 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. 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. 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. |
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 ![]() Sodium Citrate 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. |
2 ![]() Propylene 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). 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. |
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 ![]() 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 ![]() Citric Acid Function: 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). 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.) |