

"Erno Laszlo - Brightening Dual Phase Peel Duo" could be helpful for: Moisturizing, but its actives are not the most effective or are not well-studied.
This product can help improve hydration of the skin with the two types of ingredients.
The first type is called “humectants”:
these ingredients help attract water.
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. The following ingredients in this product do the job:
glycerin, butylene glycol.
This product also contains ingredients called “occlusives”. They help reduce the speed with which our skin loses moisture to the outside environment. These ingredients also help soften the upper layer of the skin, so it feels less tight and nicer to the touch. The following ingredients in this product do the job: helianthus annuus seed oil, caprylyl glycol.
A great emollient due to its high linoleic acid content. One of the most effective plant oils in helping skin hydration and repairing skin barrier function
One of the best moisturizing ingredients. Naturally present in skin. It attracts water to the upper layer of the skin working as a humectant
Helps preserve products and creates a nice product texture
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
Used to create a nice product consistency
An emollient that softens the skin and forms a protective layer on its surface. Helps water and oil mix together
An exfoliating and moisturizing alpha-hydroxy acid (AHA). Typically causes less irritation than other AHAs, for example, glycolic acid. At high concentrations (about 15%), lactic acid can help reduce lines and wrinkles. Recent studies show that lactic acid can support the "good" bacteria living on skin's surface (healthy skin microbiome)
Part exfoliating facial scrub , part brightening peel , this dual-phase skin smoothing treatment gently polishes to help reduce dullness.
Source: Erno Laszlo
This product might help exfoliate the skin with polylactic acid, but This ingredient is not the most effective.
Used as an abrasive ingredient for physical (mechanical) exfoliation
An exfoliating and moisturizing alpha-hydroxy acid (AHA). Typically causes less irritation than other AHAs, for example, glycolic acid. At high concentrations (about 15%), lactic acid can help reduce lines and wrinkles. Recent studies show that lactic acid can support the "good" bacteria living on skin's surface (healthy skin microbiome)
Formerly White Marble Dual Phase Vitamin C Peel Step 1 Size 50m L / 1.7 fl.oz. Step 2 Size 20m L / 0.7 fl.oz.
Source: Erno Laszlo
Effective ingredients missing or their concentration is too low
An exfoliating and moisturizing alpha-hydroxy acid (AHA). Typically causes less irritation than other AHAs, for example, glycolic acid. At high concentrations (about 15%), lactic acid can help reduce lines and wrinkles. Recent studies show that lactic acid can support the "good" bacteria living on skin's surface (healthy skin microbiome)
A derivative of vitamin C that is more stable, but less bioavailable than the pure form of vitamin C. It does not penetrate the skin well, but has been shown to convert to pure vitamin C once in skin. It can be helpful in stimulating collagen production and lightening the skin tone, but the required concentration is likely to be very high
| Promise | Can it deliver? |
|---|---|
| Exfoliation | |
| Evens skin tone |
Total Promises Fulfilled score: 25/100.
No comedogenic ingredients detected
Averages from community submissions.
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| Product | Similarity | Price | Irritancy |
|---|---|---|---|
![]() Erno Laszlo Brightening Dual Phase Peel Duo | Current | - | |
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![]() Skyn Iceland Nordic Skin Peel | 55% | $40.00 | |
![]() NIP+FAB Vitamin C Tonic | 55% | $19.95 | |
![]() Paula's choice Resist Advanced Smoothing Treatment 10% AHA | 54% | $31.45 |
An exfoliating and moisturizing alpha-hydroxy acid (AHA). Typically causes less irritation than other AHAs, for example, glycolic acid. At high concentrations (about 15%), lactic acid can help reduce lines and wrinkles. Recent studies show that lactic acid can support the "good" bacteria living on skin's surface (healthy skin microbiome)
A great emollient due to its high linoleic acid content. One of the most effective plant oils in helping skin hydration and repairing skin barrier function
One of the best moisturizing ingredients. Naturally present in skin. It attracts water to the upper layer of the skin working as a humectant
An essentil oil from orange peel. Potential allergen and can be irritating
Essential oil that can be irritating. Can lead to photosensitivity
An essential oil used for fragrance. Can be an allergen and irritant
A common frangrance that can easily irritate skin, especially if exposed to air, light or heat
An aromatic blend of unspecified and possibly irritating ingredients
A common frangrance that can easily irritate skin, especially if exposed to air, light or heat
Used as an abrasive ingredient for physical (mechanical) exfoliation
A more stable but less bio-available form of vitamin E compared to Tocopherol. Might help moisturize and protect the skin from free radicals, but mostly used in low concentrations to stabilize other ingredients.
Being a lipid soluble form of vitamin C, it is more stable and can penetrate the skin better than L-Ascorbic acid. It is effective in protecting the skin from free radicals, as well as evening the skin tone, but is less effective in stimulating collagen production compared to L-Ascorbic acid.
A derivative of vitamin C that is more stable, but less bioavailable than the pure form of vitamin C. It does not penetrate the skin well, but has been shown to convert to pure vitamin C once in skin. It can be helpful in stimulating collagen production and lightening the skin tone, but the required concentration is likely to be very high
Helps oil and water mix together. Used as a cleansing agent
A stable derivative of vitamin C. It is oil-soluble which means it is more likely to penetrate the skin compared to the pure form of vitamin C (which is water-soluble), but it is less bio-available and is way less effective in stimulating collagen and reducing wrinkles compared to the pure form of vitamin C (L-ascorbic acid) and its other derivatives (for example, magnesium ascorbyl phosphate). At the same time, this vitamin C derivative has been shown in studies to be effective in reducing acne, blemishes and clogged pores. It is less irritating then the pure form of vitamin C
An exfoliating and moisturizing alpha-hydroxy acid (AHA). Typically causes less irritation than other AHAs, for example, glycolic acid. At high concentrations (about 15%), lactic acid can help reduce lines and wrinkles. Recent studies show that lactic acid can support the "good" bacteria living on skin's surface (healthy skin microbiome)
Can work as an exfoliant but is typically used to adjust the product pH
Helps preserve products and creates a nice product texture
We couldn't find any comedogenic ingredients in this product
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
An emollient that softens the skin and forms a protective layer on its surface. Helps water and oil mix together
Used as an abrasive ingredient for physical (mechanical) exfoliation
A great emollient due to its high linoleic acid content. One of the most effective plant oils in helping skin hydration and repairing skin barrier function
An essentil oil from orange peel. Potential allergen and can be irritating
Essential oil that can be irritating. Can lead to photosensitivity
Carrot extract. Might have anti-oxidant properties and be used to add orange color
A plant oil that might help neutralize free radicals and have an anti-bacterial effect
An essential oil used for fragrance. Can be an allergen and irritant
A more stable but less bio-available form of vitamin E compared to Tocopherol. Might help moisturize and protect the skin from free radicals, but mostly used in low concentrations to stabilize other ingredients.
Being a lipid soluble form of vitamin C, it is more stable and can penetrate the skin better than L-Ascorbic acid. It is effective in protecting the skin from free radicals, as well as evening the skin tone, but is less effective in stimulating collagen production compared to L-Ascorbic acid.
A derivative of vitamin C that is more stable, but less bioavailable than the pure form of vitamin C. It does not penetrate the skin well, but has been shown to convert to pure vitamin C once in skin. It can be helpful in stimulating collagen production and lightening the skin tone, but the required concentration is likely to be very high
A preservative. It helps prevent bacterial growth in cosmetic products
A common frangrance that can easily irritate skin, especially if exposed to air, light or heat
Helps oil and water mix together. Used as a cleansing agent
A stable derivative of vitamin C. It is oil-soluble which means it is more likely to penetrate the skin compared to the pure form of vitamin C (which is water-soluble), but it is less bio-available and is way less effective in stimulating collagen and reducing wrinkles compared to the pure form of vitamin C (L-ascorbic acid) and its other derivatives (for example, magnesium ascorbyl phosphate). At the same time, this vitamin C derivative has been shown in studies to be effective in reducing acne, blemishes and clogged pores. It is less irritating then the pure form of vitamin C
An exfoliating and moisturizing alpha-hydroxy acid (AHA). Typically causes less irritation than other AHAs, for example, glycolic acid. At high concentrations (about 15%), lactic acid can help reduce lines and wrinkles. Recent studies show that lactic acid can support the "good" bacteria living on skin's surface (healthy skin microbiome)
Helps soften the upper layer of the skin and create a nice product finish
Used to thicken product formulations and create gel-like textures
Used to stabilize mixtures of oil and water, and create thicker, gel-like product textures
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
One of the best moisturizing ingredients. Naturally present in skin. It attracts water to the upper layer of the skin working as a humectant
Can work as an exfoliant but is typically used to adjust the product pH
Helps preserve products and creates a nice product texture
A preservative. It helps prevent bacterial growth in cosmetic products
An aromatic blend of unspecified and possibly irritating ingredients
A common frangrance that can easily irritate skin, especially if exposed to air, light or heat
Peg-8, Sodium bicarbonate, Butylene glycol, Silica, Glyceryl stearate, Polylactic acid, Steareth-20, Helianthus annuus seed oil, Citrus aurantium dulcis peel oil, Citrus tangerina peel oil, Daucus carota sativa root extract, Daucus carota sativa seed oil, Citrus reticulata peel oil, Unknown, Beta-carotene, Tocopheryl acetate, Ascorbyl palmitate, Magnesium ascorbyl phosphate, Potassium stearate, Phenoxyethanol, Limonene, Water, Sorbitan oleate decylglucoside crosspolymer, Sodium ascorbyl phosphate, Linoleamidopropyl pg-dimonium chloride phosphate, Lactic acid, Polyquaternium-10, Hydroxyethylcellulose, Polysorbate 20, Sodium chloride, Butylene glycol, Glycerin, Citric acid, Sodium hydroxide, Disodium edta, Sodium dehydroacetate, 1,2-hexanediol, Caprylyl glycol, Phenoxyethanol, Potassium sorbate, Parfum, Limonene
