Updated on November 03, 2023
Overview
What they are
These products are both general moisturizers. They have a total of 5 ingredients in common
Cool Features
They both contain hyaluronic acid
Suited For
They're both likely to be good for dry skin and brightening skin
Free From
They both do not contain any 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 Hydraphase HA Light Hyaluronic Acid Face Moisturizer 20 ingredients
La Roche-Posay Hyalu B5 Cream 27 ingredients
At a glance
Click on any of the items below to learn more
La Roche-Posay Hydraphase HA Light Hyaluronic Acid Face Moisturizer 20 ingredients
La Roche-Posay Hyalu B5 Cream 27 ingredients
Benefits
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Concerns
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Notable Ingredients
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Benefits
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Concerns
This product contains 1 ingredient that may have this attribute:
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This product contains 2 ingredients that may have this attribute:
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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.
Glycerin is already naturally found in your skin. It helps moisturize and protect your skin.
Caprylic/Capric Triglyceride is an emollient, solvent, and texture enhancer. It is considered a skin-softener by helping the skin prevent moisture loss.
This ingredient comes from a fatty acid (lauric acid) and amino acid (lysine). It is used to add a silky feel to cosmetics.
C15-19 alkane is a mixture of alkanes. Alkanes are hydrocarbons with carbon atoms held together by single bonds.
Myristyl Myristate is created from the fatty acids of myristyl alcohol and myristic acid. In skincare, it is an emollient and texture enhancer.
Ammonium Polyacryloyldimethyl Taurate is a polymer made from ammonium salts. It helps add stability and texture to a product.
Stearic Acid is a fatty acid. It is an emollient, emulsifier, and texture enhancer.
Potassium Cetyl Phosphate is the potassium salt of a mixture. This mixture consists of the esters from phosphoricacid and cetyl alcohol.
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.
Sodium Hyaluronate is hyaluronic acid's salt form. It is commonly derived from the sodium salt of hyaluronic acid.
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.
Myristic Acid is a saturated fatty acid. It is naturally found in milk fat. Other sources include palm oil, coconut oil, and butter fat.
Palmitic Acid is a fatty acid found in our skin. In cosmetics, it is usually derived from palm oil. It is a cleanser, emollient, and emulsifier.
Hydrolyzed Hyaluronic Acid is a form of hyaluronic acid. It is created by the hydrolysis of hyaluronic acid with a high molecular weight. Once created, Hydrolyzed Hyaluronic Acid has a low molecular weight.
Capryloyl Glycine is created by adding an acyl group to glycine and caprylic acid chloride.
Caprylyl Glycol is a humectant and emollient, meaning it attracts and preserves moisture.
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.
Pentaerythrityl Tetra-Di-T-Butyl Hydroxyhydrocinnamate (long name, huh?) is a synthetic antioxidant.
2 Concerns
Parfum is a catch-all term for an ingredient or more that is used to give a scent to products.
Water, Glycerin, Caprylic/Capric Triglyceride, Lauroyl Lysine, C15-19 Alkane, Myristyl Myristate, Ammonium Polyacryloyldimethyl Taurate, Stearic Acid, Potassium Cetyl Phosphate, Glyceryl Stearate Se, Sodium Hyaluronate, Sodium Hydroxide, Myristic Acid, Palmitic Acid, Hydrolyzed Hyaluronic Acid, Capryloyl Glycine, Caprylyl Glycol, Xanthan Gum, Pentaerythrityl Tetra-Di-T-Butyl Hydroxyhydrocinnamate, Parfum
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.
Hydrogenated Polyisobutene is a synthetic polymer. Polymers are compounds with high molecular weight. Hydrogenated Polyisobutene is an emollient and texture enhancer.
Propylene Glycol is an odorless, colorless liquid. As a humectant, it helps skin retain moisture. It also aids in delivering active ingredients.
5 Concerns
Alcohol Denat. is an alcohol with a denaturant property. It is created by mixing ethanol with other additives.
Propanediol helps absorb ingredients into your skin, boosting their benefits. It can act as an emollient, making your skin softer. Propanediol can help products last longer by boosting the properties of preservatives within the formulation.
Panthenol is a common ingredient that helps hydrate and soothe the skin. It can be found naturally in our skin and hair.
2 Concerns
Synthetic Wax is created from fossil fuels such as natural gas. It is used to enhance texture, adjust pH, and as an occlusive.
Nylon-12 is a polymer. It is derived from 12-aminododecanoic acid, an omega-amino fatty acid
Peg-10 Dimethicone is silicone with conditioner and emulsifier properties. It mostly acts as an emollient in skincare and and humectant in haircare.
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.
Sodium Hyaluronate is hyaluronic acid's salt form. It is commonly derived from the sodium salt of hyaluronic acid.
Hydrolyzed Hyaluronic Acid is a form of hyaluronic acid. It is created by the hydrolysis of hyaluronic acid with a high molecular weight. Once created, Hydrolyzed Hyaluronic Acid has a low molecular weight.
Sodium Citrate is the sodium salts of citric acid. In skincare, it is used to alter pH levels and acts as a preservative.
Phenoxyethanol is a preservative that has germicide, antimicrobial, and aromatic properties. Studies show that phenoxyethanol can prevent microbial growth. By itself, it has a scent that is similar to that of a rose.
Adenosine is in every living organism. It is one of four components in nucleic acids that helps store our DNA.
Chlorphenesin is a synthetic preservative. It helps protect a product against bacteria in order to extend shelf life. In most cases, Chlorphenesin is paired with other preservatives such as phenoxyethanol and caprylyl glycol.
This ingredient is a solvent. It helps dissolve active ingredients and alter the texture of products.
Dipropylene Glycol is a synthetically created stabilizer and solvent. It is a part of the glycol class in the alcohol family.
Disteardimonium Hectorite comes from the clay mineral named hectorite. It is used to add thickness to a product.
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.
Water, Glycerin, Dimethicone, Hydrogenated Polyisobutene, Propylene Glycol, Hydroxypropyl Tetrahydropyrantriol, Alcohol Denat., Propanediol, Panthenol, Synthetic Wax, Nylon-12, Peg-10 Dimethicone, Dimethicone/Peg-10/15 Crosspolymer, Hydroxyethylpiperazine Ethane Sulfonic Acid, Tocopherol, Sodium Polyacrylate, Sodium Hyaluronate, Hydrolyzed Hyaluronic Acid, Sodium Citrate, Phenoxyethanol, Adenosine, Chlorphenesin, Propylene Carbonate, Dipropylene Glycol, Disteardimonium Hectorite, Disodium EDTA, 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 Hyaluronate is hyaluronic acid's salt form. It is commonly derived from the sodium salt of hyaluronic acid.
Like hyaluronic acid, it is great at holding water and acts as a humectant. This makes it a great skin hydrating ingredient.
Sodium Hyaluronate is naturally occurring in our bodies and is mostly found in eye fluid and joints.
These are some other common types of Hyaluronic Acid:
Learn more about Sodium HyaluronateHydrolyzed Hyaluronic Acid is a form of hyaluronic acid. It is created by the hydrolysis of hyaluronic acid with a high molecular weight. Once created, Hydrolyzed Hyaluronic Acid has a low molecular weight.
Low molecular weight HA has been shown to hydrate and increase elasticity of the skin. Increasing elasticity is also associated with reduction of wrinkle depth.
One study found topical low molecular weight hyaluronic acid may be considered for the treatment of rosacea in the adult population. However, we always recommend speaking with a professional about your skin concerns.
Hyaluronic acids are a humectant. This means they draw moisture from the air. Hyaluronic acids help moisturize, soothe, and protect the skin.
Read more about other common forms of hyaluronic acid:
Learn more about Hydrolyzed Hyaluronic AcidParfum 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 two products.
When to use
La Roche-Posay Hydraphase HA Light Hyaluronic Acid Face Moisturizer 20 ingredients
La Roche-Posay Hyalu B5 Cream 27 ingredients
Reviews
Here's what our community thinks
La Roche-Posay Hydraphase HA Light Hyaluronic Acid Face Moisturizer 20 ingredients
Lapaki
Refreshing moisturizer
This is a hydrating and fast absorbing moisturizer. It feels light, refreshing and has a cooling effect. Unfortunately it...
Refreshing moisturizer
This is a hydrating and fast absorbing moisturizer. It feels light, refreshing and has a cooling effect. Unfortunately it sometimes caused pilling when combined with some of my other skincare products.
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