La Roche-Posay Effaclar A.Z. Gel Cream Versus La Roche-Posay Effaclar H Iso-Biome Moisturiser
Updated on February 13, 2025
Overview
What they are
These products are both reef safe general moisturizers. They have a total of 7 ingredients in common
Suited For
They're both likely to be good for fighting acne, dry skin, brightening skin, sensitive skin, oily skin, reducing pores, scar healing and dark spots
Free From
They both do not contain any harsh alcohols, common allergens, oils, parabens or sulfates
What's Inside
They both contain fragrances
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
La Roche-Posay Effaclar A.Z. Gel Cream 26 ingredients
La Roche-Posay Effaclar H Iso-Biome Moisturiser 25 ingredients
What's inside (and what isn't)
What's inside (and what isn't)
At a glance
Click on any of the items below to learn more
La Roche-Posay Effaclar A.Z. Gel Cream 26 ingredients
La Roche-Posay Effaclar H Iso-Biome Moisturiser 25 ingredients
Key Ingredients
Benefits
Concerns
Key Ingredients
Benefits
Concerns
Ingredients Side-by-side
Water
Skin ConditioningAzelaic Acid
Buffering
C15-19 Alkane
SolventGlycerin
Humectant
Triethyl Citrate
Masking
Diglycerin
Humectant
Salicylic Acid
Masking
Panthenol
Skin Conditioning
Silica
Abrasive
Ammonium Polyacryloyldimethyl Taurate
Emulsion StabilisingTaraxacum Officinale Rhizome/Root Extract
Skin ConditioningZinc Gluconate
Skin Conditioning
Glyceryl Stearate
Emollient
PEG-100 Stearate
Sodium Hyaluronate
Humectant
Sodium Hydroxide
BufferingSodium Phosphate
BufferingDisodium Phosphate
BufferingHydroxyethylcellulose
Emulsion StabilisingHydroxypropyl Starch Phosphate
Tetrasodium Glutamate Diacetate
Citric Acid
Buffering
Trisodium Ethylenediamine Disuccinate
Pentylene Glycol
Skin ConditioningPolysorbate 60
Emulsifying
Parfum
Masking
Water, Azelaic Acid, C15-19 Alkane, Glycerin, Triethyl Citrate, Diglycerin, Salicylic Acid, Panthenol, Silica, Ammonium Polyacryloyldimethyl Taurate, Taraxacum Officinale Rhizome/Root Extract, Zinc Gluconate, Glyceryl Stearate, PEG-100 Stearate, Sodium Hyaluronate, Sodium Hydroxide, Sodium Phosphate, Disodium Phosphate, Hydroxyethylcellulose, Hydroxypropyl Starch Phosphate, Tetrasodium Glutamate Diacetate, Citric Acid, Trisodium Ethylenediamine Disuccinate, Pentylene Glycol, Polysorbate 60, Parfum
Water
Skin ConditioningGlycerin
Humectant
Squalane
Emollient
Dimethicone
Emollient
Panthenol
Skin Conditioning
Zea Mays Starch
AbsorbentNiacinamide
Smoothing
Ammonium Polyacryloyldimethyl Taurate
Emulsion StabilisingMyristyl Myristate
Emollient
Bixa Orellana Seed Extract
MaskingStearic Acid
Cleansing
Potassium Cetyl Phosphate
EmulsifyingGlyceryl Stearate Se
Emulsifying
Sodium Hydroxide
BufferingMyristic Acid
Cleansing
2-Oleamido-1,3-Octadecanediol
Skin ConditioningPalmitic Acid
Emollient
Hydroxyacetophenone
Antioxidant
Capryloyl Glycine
CleansingCaprylyl Glycol
EmollientVitreoscilla Ferment
Skin ConditioningCitric Acid
Buffering
Maltodextrin
Absorbent
Xanthan Gum
EmulsifyingParfum
Masking
Water, Glycerin, Squalane, Dimethicone, Panthenol, Zea Mays Starch, Niacinamide, Ammonium Polyacryloyldimethyl Taurate, Myristyl Myristate, Bixa Orellana Seed Extract, Stearic Acid, Potassium Cetyl Phosphate, Glyceryl Stearate Se, Sodium Hydroxide, Myristic Acid, 2-Oleamido-1,3-Octadecanediol, Palmitic Acid, Hydroxyacetophenone, Capryloyl Glycine, Caprylyl Glycol, Vitreoscilla Ferment, Citric Acid, Maltodextrin, Xanthan Gum, Parfum
Ingredients Explained
These ingredients are found in both products.
Ingredients higher up in an ingredient list are typically present in a larger amount.
Ammonium Polyacryloyldimethyl Taurate is a polymer made from ammonium salts. It helps add stability and texture to a product. This ingredient is stable over a wide pH range.
Due to its ability to absorb water, it can help thicken the texture of a product. As an emulsion stabilizer, this ingredient is stabilizes other ingredients to create a consistent texture.
According to a manufacturer, it helps create a "smooth, light and fresh" texture.
Learn more about Ammonium Polyacryloyldimethyl TaurateCitric Acid is an AHA derived from citrus fruits (think oranges, lemons, and limes!).
As an AHA, Citric Acid removes the top layer of skin cells from the newer layer of skin underneath. This helps skin to remove dark spots and even out skin tone.
If you spot Citric Acid near the end of an ingredient list, it's likely there as a pH adjuster rather than an active ingredient.
Read more about some other popular AHA's here:
Learn more about Citric AcidGlycerin 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 GlycerinPanthenol is a common ingredient that helps hydrate and soothe the skin. It is found naturally in our skin and hair.
There are two forms of panthenol: D and L.
D-panthenol is also known as dexpanthenol. Most cosmetics use dexpanthenol or a mixture of D and L-panthenol.
Panthenol is famous due to its ability to go deeper into the skin's layers. Using this ingredient has numerous pros (and no cons):
Like hyaluronic acid, panthenol is a humectant. Humectants are able to bind and hold large amounts of water to keep skin hydrated.
This ingredient works well for wound healing. It works by increasing tissue in the wound and helps close open wounds.
Once oxidized, panthenol converts to pantothenic acid. Panthothenic acid is found in all living cells.
This ingredient is also referred to as pro-vitamin B5.
Learn more about PanthenolParfum 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.
For instance, Habanolide is a proprietary trade name for a specific aroma chemical. When used as a fragrance ingredient in cosmetics, most aroma chemicals fall under the broad labeling category of “FRAGRANCE” or “PARFUM” according to EU and US regulations.
The term 'parfum' or '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 ParfumSodium 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 HydroxideWater. 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 WaterIngredient Ratings
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When to use
La Roche-Posay Effaclar A.Z. Gel Cream 26 ingredients
La Roche-Posay Effaclar H Iso-Biome Moisturiser 25 ingredients
Reviews
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