Here's our complete breakdown comparing the ingredients, attributes, and more of La Mer Crème de la Mer Moisturizer Original versus La Roche-Posay Substiane .
Last updated on October 27, 2023. Published on March 19, 2023
Overview
What they are
These products are both reef safe general moisturizers. They have a total of 8 ingredients in common
Suited For
They're both likely to be good for dry skin and brightening skin
Free From
They both do not contain any parabens
What's Inside
They both contain fragrances
We independently verify ingredients, and our claims are backed by peer-reviewed research. Spot a product that need an update? Let us know.
General Moisturizer
All-purpose moisturizers hydrate the top layer of skin cells.
General Moisturizer
All-purpose moisturizers hydrate the top layer of skin cells.
Ingredient Info
La Mer Crème de la Mer Moisturizer 43 ingredients
La Roche-Posay Substiane 37 ingredients
Contains Alcohol
Ingredients in this product that are types of alcohol:
Silicon Free
This product is free of silicons 🎉
Contains Fragrance
Ingredients in this product that are forms of fragrance:
Contains Sulfate
Ingredients in this product that are types of sulfate:
Paraben Free
This product is free of parabens 🎉
Contains Oils
Ingredients in this product that are types of oil:
Not Malassezia Safe
Ingredients in this product that are not malassezia safe:
Reef Safe
This product is free of ingredients that damage reefs 🎉
Contains EU Allergens
Ingredients in this product that are EU allergens:
Non Vegan
This product is not vegan 😥
Not Cruelty Free
This product is not cruelty-free 😥
Alcohol Free
This product is free of harsh alcohols 🎉
Contains Silicon
Ingredients in this product that are types of silicon:
Sulfate Free
This product is free of sulfates 🎉
Paraben Free
This product is free of parabens 🎉
Oil Free
This product is free of oils 🎉
Not Malassezia Safe
Ingredients in this product that are not malassezia safe:
Reef Safe
This product is free of ingredients that damage reefs 🎉
EU Allergen Free
This product is free of EU allergens 🎉
Non Vegan
This product is not vegan 😥
Not Cruelty Free
This product is not cruelty-free 😥
At a glance
Click on any of the items below to learn more
La Mer Crème de la Mer Moisturizer 43 ingredients
La Roche-Posay Substiane 37 ingredients
Notable Ingredients
This product contains 2 ingredients 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:
Concerns
This product contains 4 ingredients 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 2 ingredients that may have this attribute:
This product contains 2 ingredients that may have this attribute:
Benefits
This product contains 2 ingredients that may have this attribute:
This product contains 1 ingredient that may have this attribute:
Concerns
This product contains 6 ingredients 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 3 ingredients that may have this attribute:
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Join SkinSortIngredients Compared
Ingredients that are highlighted in purple are present in both products.
La Mer Crème de la Mer Moisturizer 43 ingredients
La Roche-Posay Substiane 37 ingredients
Algae Extract • Paraffinum Liquidum • Petrolatum • Glycerin • Isohexadecane • Microcrystalline Wax • Lanolin Alcohol • Citrus Aurantifolia Leaf Extract • Sesamum Indicum Seed Oil • Eucalyptus Globulus Leaf Oil • Sesamum Indicum Seed Powder • Medicago Sativa Seed Powder • Helianthus Annuus Seedcake • Prunus Amygdalus Dulcis Seed Meal • Sodium Gluconate • Potassium Gluconate • Copper Gluconate • Calcium Gluconate • Glycine • Zinc Gluconate • Magnesium Sulfate • Paraffin • Tocopheryl Succinate • Niacin • Water • Beta-Carotene • Decyl Oleate • Aluminum Distearate • Octyldodecanol • Citric Acid • Cyanocobalamin • Magnesium Stearate • Panthenol • Limonene • Geraniol • Linalool • Hydroxycitronellal • Citronellol • Benzyl Salicylate • Citral • Sodium Benzoate • Alcohol Denat. • Parfum
Water • Paraffinum Liquidum • Glycerin • Dimethicone • Isocetyl Stearate • Hydrogenated Polyisobutene • Butyrospermum Parkii Butter • Cera Alba • Beeswax • Cetyl Alcohol • Glyceryl Stearate • Peg-100 Stearate • Copernicia Cerifera Wax • Cera Microcristallina • Microcrystalline Wax • Paraffin • Sorbitan Tristearate • Dimethiconol • Isohexadecane • Sodium Hyaluronate • Sodium Hydroxide • Arginine PCA • Serine • Disodium EDTA • Propylene Glycol • Hydrolyzed Linseed Extract • Hydroxypropyl Tetrahydropyrantriol • Acetyl Dipeptide-1 Cetyl Ester • Xanthan Gum • Polysorbate 80 • Acrylamide/Sodium Acryloyldimethyltaurate Copolymer • Acrylates Copolymer • Pentaerythrityl Tetra-Di-T-Butyl Hydroxyhydrocinnamate • Sodium Benzoate • Phenoxyethanol • Benzoic Acid • Parfum
Ingredients Side-by-side
Ingredients that are highlighted in purple are present in both products.
Learn more about what what Com. / Irr. ratings are
Ingredients Explained
These ingredients are found in both products.
Ingredients higher up in an ingredient list are typically present in a larger amount.
Paraffinum Liquidum is also known as liquid paraffin. It is a type of highly refined mineral oil.
Like other oils, Paraffinum Liquidum has emollient properties. Emollients help soothe and soften the skin. By creating a barrier to trap moisture within, emollients help keep your skin hydrated.
Paraffinum Liquidum does not irritate the skin and is non-comedogenic. However, this ingredient may not work well for those with oily skin or fungal acne.
If you have concerns about using this ingredient in your routine, we recommend speaking with a professional.
Learn more about Paraffinum LiquidumLa Mer Crème de la Mer Moisturizer Original contains this as ingredient number 2.
La Roche-Posay Substiane contains this as ingredient number 3.
Glycerin 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 GlycerinLa Mer Crème de la Mer Moisturizer Original contains this as ingredient number 4.
La Roche-Posay Substiane contains this as ingredient number 5.
Isohexadecane is added to enhance texture, emulsify, and to help cleanse. It is an isoparrafin. It is a component of petrolatum.
Due to its large size, Isohexadecane is not absorbed by the skin. Instead, it sits on top and acts as an emollient. Emollients help keep your skin soft and smooth by trapping moisture within.
Isohexadecane is often used in products designed to help oily skin. It is lightweight and non-greasy while helping to moisturize. When mixed with silicones, it gives a product a silky feel.
Learn more about IsohexadecaneLa Mer Crème de la Mer Moisturizer Original contains this as ingredient number 5.
La Roche-Posay Substiane contains this as ingredient number 23.
Microcrystalline Wax is created by de-oiling petroleum. It is highly refined and purified before being added to cosmetics.
Microcrystalline Wax is used to enhance the texture and create even consistency. It helps stabilize a product by preventing ingredients from separating.
La Mer Crème de la Mer Moisturizer Original contains this as ingredient number 6.
La Roche-Posay Substiane contains this as ingredient number 19.
Paraffin is a solid created from petroleum. The term 'paraffin' can also refer to either petroleum Jelly or mineral oil.
It has natural occlusive properties which can worsen oily skin. Due to its petrolatum base, this ingredient is not fungal-acne safe.
La Mer Crème de la Mer Moisturizer Original contains this as ingredient number 22.
La Roche-Posay Substiane contains this as ingredient number 20.
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. Talk about multi-purpose! If you see this, drink a glass of water. Stay hydrated!
Learn more about WaterLa Mer Crème de la Mer Moisturizer Original contains this as ingredient number 25.
La Roche-Posay Substiane contains this as ingredient number 1.
Sodium Benzoate is a preservative. It's used in both cosmetic and food products to inhibit the growth of mold and bacteria. It is typically produced synthetically.
Both the US FDA and EU Health Committee have approved the use of sodium benzoate. In the US, levels of 0.1% (of the total product) are allowed.
Sodium benzoate works as a preservative by inhibiting the growth of bacteria inside of cells. It prevents the cell from fermenting a type of sugar using an enzyme called phosphofructokinase.
Sodium Benzoate is the salt of benzoic acid. Foods containing sodium benzoate include soda, salad dressings, condiments, fruit juices, wines, and snack foods.
Studies for using ascorbic acid and sodium benzoate in cosmetics are lacking, especially in skincare routines with multiple steps.
We always recommend speaking with a professional, such as a dermatologist, if you have any concerns.
Learn more about Sodium BenzoateLa Mer Crème de la Mer Moisturizer Original contains this as ingredient number 41.
La Roche-Posay Substiane contains this as ingredient number 38.
Parfum is a catch-all term for an ingredient or more that is used to give aroma to products. Parfum, or fragrance, 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. One example is Calendula flower extract. Essential oil ingredients still impart a scent or 'fragrance'.
Depending on the blend, it can cause allergies and sensitivities on the skin. Some ingredients that are known EU allergens include linalool and citronellol.
Products use parfum often to give products a scent or cover up smells of different ingredients.
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 ParfumLa Mer Crème de la Mer Moisturizer Original contains this as ingredient number 43.
La Roche-Posay Substiane contains this as ingredient number 41.
Here's what our community thinks of the ingredients in these two products.
La Mer Crème de la Mer Moisturizer 43 ingredients
La Roche-Posay Substiane 37 ingredients
Usage
Here's some more info on how this product is used by our community.
When to use
La Mer Crème de la Mer Moisturizer 43 ingredients
La Roche-Posay Substiane 37 ingredients
Reviews
Here's what our community thinks
La Roche-Posay Substiane 37 ingredients
Alternatives
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