Ducray Adult Blemish-Prone Skin Serum Versus La Roche-Posay Effaclar Duo+ Global Acne Treatment
Overview
Suited For
They're both likely to be good for fighting acne, dry skin, brightening skin and scar healing
Free From
They both do not contain any harsh alcohols, common allergens, oils, parabens or sulfates
What's Inside
They both contain fragrances and silicones
We independently verify ingredients, and our claims are backed by peer-reviewed research. Spot a product that needs an update? Let us know.
Ingredient Info
Ducray Adult Blemish-Prone Skin Serum 22 ingredients
La Roche-Posay Effaclar Duo+ Global Acne Treatment 28 ingredients
At a glance
Click on any of the items below to learn more
Ducray Adult Blemish-Prone Skin Serum 22 ingredients
La Roche-Posay Effaclar Duo+ Global Acne Treatment 28 ingredients
Notable Ingredients
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Benefits
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Concerns
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This product contains 1 ingredient that may have this attribute:
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Notable Ingredients
This product contains 1 ingredient that may have this attribute:
Benefits
This product contains 1 ingredient that may have this attribute:
This product contains 1 ingredient that may have this attribute:
This product contains 1 ingredient that may have this attribute:
This product contains 1 ingredient that may have this attribute:
Concerns
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This product contains 3 ingredients that may have this attribute:
Ingredients Side-by-side
Water. It's the most common cosmetic ingredient of all. You'll usually see it at the top of ingredient lists, meaning that it makes up the largest part of the product.
Caprylic/Capric Triglyceride is an emollient, solvent, and texture enhancer. It is considered a skin-softener by helping the skin prevent moisture loss.
Azelaic acid is a naturally occurring acid derived from grains. This ingredient is effective in treating acne, rosacea, and other skin conditions.
Dicaprylyl Ether is created from caprylic acid. It is a texture-enhancer and emollient.
7 Benefits 2 Concerns
Glycolic Acid is arguably the most famous AHA with a ton of research to back up its benefits.
Glycerin is already naturally found in your skin. It helps moisturize and protect your skin.
Nylon-12 is a polymer. It is derived from 12-aminododecanoic acid, an omega-amino fatty acid
Glyceryl Stearate is a mix of glycerin and stearic acid.
3 Concerns
Cetearyl alcohol is a mixture of two fatty alcohols: cetyl alcohol and stearyl alcohol. It is mainly used as an emulsifier. Emulsifiers help prevent the separation of oils and products. Due to its composition, it can also be used to thicken a product or help create foam.
Sodium Hydroxide is also known as lye or caustic soda. It is used to adjust the pH of products; many ingredients require a specific pH to be effective.
Dimethicone is a silicone used for making products smooth and silky. It also has the added benefit of sealing in hydration. The amount of dimethicone found in beauty products is considered safe and non-comedogenic, meaning it won't clog pores.
Acetic Acid is created during the process of fermenting ethanol. It is used to help adjust the pH of cosmetics.
Disodium EDTA plays a role in making products more stable by aiding other preservatives.
2 Concerns
Parfum is a catch-all term for an ingredient or more that is used to give a scent to products.
6 Benefits
Niacinamide has emerged as an all-star ingredient due to its many benefits.
Sclerotium Gum is a polysaccharide gum made by the fungus, Sclerotium rolfssii. It is similar to xanthan gum.
Chances are, you eat sodium chloride every day. Sodium Chloride is also known as table salt.
Antioxidant 4 Benefits May cause irritation
Tocopherol (also known as Vitamin E) is a common antioxidant used to help protect the skin from free-radicals and strengthen the skin barrier. It's also fat soluble - this means our skin is great at absorbing it.
Antioxidant Helps brighten skin
Tocopheryl Acetate is AKA Vitamin E. It is an antioxidant and protects your skin from free radicals. Free radicals damage the skin by breaking down collagen.
Water, Caprylic/Capric Triglyceride, Azelaic Acid, Dicaprylyl Ether, Glycolic Acid, Glycerin, Nylon-12, Glyceryl Stearate, Cetearyl Alcohol, Sodium Hydroxide, Dimethicone, Acetic Acid, Ceteareth-33, Disodium EDTA, Parfum, Glyceryl Laurate, Myrtus Communis Leaf Extract, Niacinamide, Sclerotium Gum, Sodium Chloride, Tocopherol, Tocopheryl Acetate
Water. It's the most common cosmetic ingredient of all. You'll usually see it at the top of ingredient lists, meaning that it makes up the largest part of the product.
Glycerin is already naturally found in your skin. It helps moisturize and protect your skin.
Dimethicone is a silicone used for making products smooth and silky. It also has the added benefit of sealing in hydration. The amount of dimethicone found in beauty products is considered safe and non-comedogenic, meaning it won't clog pores.
Isocetyl Stearate is an ester of isocetyl alcohol and stearic acid.
2 Concerns
Silica is a mineral naturally found in our skin. It helps to thicken and smooth the texture of a product. It also acts as an agent for other ingredients by increasing the absorption of other ingredients into the skin.
Ammonium Polyacryloyldimethyl Taurate is a polymer made from ammonium salts. It helps add stability and texture to a product.
Sodium Hydroxide is also known as lye or caustic soda. It is used to adjust the pH of products; many ingredients require a specific pH to be effective.
Polysorbate 80 is a surfactant and emulsifier. It is used to keep ingredients together, and prevent oils and waters from separating.
Xanthan gum is used as a stabilizer and thickener within cosmetic products. It helps give products a sticky, thick feeling - preventing them from being too runny.
Zinc PCA (or "zinc salt") differs slightly from zinc itself. PCA stands for pyrrolidone carboxylic acid. However, Zinc PCA comes from zinc.
Isohexadecane is added to enhance texture, emulsify, and to help cleanse. It is an isoparrafin. It is a component of petrolatum.
Capryloyl Salicylic Acid comes from salicylic acid, the famous acne-fighting BHA.
Caprylyl Glycol is a humectant and emollient, meaning it attracts and preserves moisture.
Myristyl Myristate is created from the fatty acids of myristyl alcohol and myristic acid. In skincare, it is an emollient and texture enhancer.
Sorbitan Oleate is created from compounds in oleic acid and sorbitol. It is used to stabilize a product by preventing ingredients from separating.
Disodium EDTA plays a role in making products more stable by aiding other preservatives.
Potassium Cetyl Phosphate is the potassium salt of a mixture. This mixture consists of the esters from phosphoricacid and cetyl alcohol.
Aluminum Starch Octenylsuccinate is a synthetic powder used as an absorbent, thickener, and anti-caking agent.
Glyceryl Stearate Se is a self-emulsifying (SE) form of glyceryl stearate. Self-emusifying means this ingredient automatically blends with water. It is an emulsifier, emollient, and cleansing agent.
2 Concerns
Parfum is a catch-all term for an ingredient or more that is used to give a scent to products.
Water, Glycerin, Dimethicone, Isocetyl Stearate, Isopropyl Lauroyl Sarcosinate, Silica, Ammonium Polyacryloyldimethyl Taurate, Methyl Methacrylate Crosspolymer, Sodium Hydroxide, Poloxamer 338, Polysorbate 80, Mannose, Xanthan Gum, Zinc PCA, Isohexadecane, 2-Oleamido-1,3-Octadecanediol, Capryloyl Salicylic Acid, Caprylyl Glycol, Piroctone Olamine, Myristyl Myristate, Acrylamide, Sorbitan Oleate, Disodium EDTA, Potassium Cetyl Phosphate, Vitreoscilla Ferment, Aluminum Starch Octenylsuccinate, Glyceryl Stearate Se, Parfum
Ingredients Explained
These ingredients are found in both products.
Ingredients higher up in an ingredient list are typically present in a larger amount.
Water. It's the most common cosmetic ingredient of all. You'll usually see it at the top of ingredient lists, meaning that it makes up the largest part of the product.
So why is it so popular? Water most often acts as a solvent - this means that it helps dissolve other ingredients into the formulation.
You'll also recognize water as that liquid we all need to stay alive. If you see this, drink a glass of water. Stay hydrated!
Learn more about WaterGlycerin is already naturally found in your skin. It helps moisturize and protect your skin.
A study from 2016 found glycerin to be more effective as a humectant than AHAs and hyaluronic acid.
As a humectant, it helps the skin stay hydrated by pulling moisture to your skin. The low molecular weight of glycerin allows it to pull moisture into the deeper layers of your skin.
Hydrated skin improves your skin barrier; Your skin barrier helps protect against irritants and bacteria.
Glycerin has also been found to have antimicrobial and antiviral properties. Due to these properties, glycerin is often used in wound and burn treatments.
In cosmetics, glycerin is usually derived from plants such as soybean or palm. However, it can also be sourced from animals, such as tallow or animal fat.
This ingredient is organic, colorless, odorless, and non-toxic.
Glycerin is the name for this ingredient in American English. British English uses Glycerol/Glycerine.
Learn more about GlycerinSodium Hydroxide is also known as lye or caustic soda. It is used to adjust the pH of products; many ingredients require a specific pH to be effective.
In small amounts, sodium hydroxide is considered safe to use. However, large amounts may cause chemical burns due to its high alkaline.
Your skin has a natural pH and acid mantle. This acid mantle helps prevent harmful bacteria from breaking through. The acid mantle also helps keep your skin hydrated.
"Alkaline" refers to a high pH level. A low pH level would be considered acidic.
Learn more about Sodium HydroxideDimethicone is a silicone used for making products smooth and silky. It also has the added benefit of sealing in hydration. The amount of dimethicone found in beauty products is considered safe and non-comedogenic, meaning it won't clog pores.
Dimethicone has been found increase absorption in skin, boosting the benefits of other ingredients. While there is concern for the safety of dimethicone, the levels used in skincare are safe for use.
Disodium EDTA plays a role in making products more stable by aiding other preservatives.
It is a chelating agent, meaning it neutralizes metal ions that may be found in a product.
Disodium EDTA is a salt of edetic acid and is found to be safe in cosmetic ingredients.
Learn more about Disodium EDTAParfum is a catch-all term for an ingredient or more that is used to give a scent to products.
Also called "fragrance", this ingredient can be a blend of hundreds of chemicals or plant oils. This means every product with "fragrance" or "parfum" in the ingredients list is a different mixture.
In the US, the alternative name for parfum is 'fragrance'.
The term 'fragrance' is not regulated in many countries. In many cases, it is up to the brand to define this term.
For instance, many brands choose to label themselves as "fragrance-free" because they are not using synthetic fragrances. However, their products may still contain ingredients such as essential oils that are considered a fragrance by INCI standards.
One example is Calendula flower extract. Calendula is an essential oil that still imparts a scent or 'fragrance'.
Depending on the blend, the ingredients in the mixture can cause allergies and sensitivities on the skin. Some ingredients that are known EU allergens include linalool and citronellol.
Parfum can also be used to mask or cover an unpleasant scent.
The bottom line is: not all fragrances/parfum/ingredients are created equally. If you are worried about fragrances, we recommend taking a closer look at an ingredient. And of course, we always recommend speaking with a professional.
Learn more about ParfumIngredient Ratings
Here's what our community thinks of the ingredients in these products.
When to use
Ducray Adult Blemish-Prone Skin Serum 22 ingredients
La Roche-Posay Effaclar Duo+ Global Acne Treatment 28 ingredients
Reviews
Here's what our community thinks
Ducray Adult Blemish-Prone Skin Serum 22 ingredients
La Roche-Posay Effaclar Duo+ Global Acne Treatment 28 ingredients
YousifShamoon
interesting to say the least
no one warned me about the purge i was gonna get from this. the crease on my nose and my chin turned red and were...
interesting to say the least
no one warned me about the purge i was gonna get from this. the crease on my nose and my chin turned red and were peeling for weeks but i think it paid off in the end. it handled my sebum production and pimples very well, but unfortunately i can't say the same for my blackheads and whiteheads, which remained unbothered by this product. another thing i wasn't warned about when i used this is that it is not hydrating enough to be used as a moisturiser. i only realised this when i switched to byoma's gel cream moisturiser but you have to use this as a facial or spot treatment and follow up with a proper moisturiser. overall i liked this but i had to stop using it because it was constantly sold out and i think it is so expensive right now and i also needed to stop using benzyl peroxide so i can switch to retinol.
