La Roche-Posay Cicaplast B5 Serum for Dry Skin Versus La Roche-Posay Hyalu B5 Face Serum with Hyaluronic Acid
Updated on July 18, 2023
Overview
What they are
These products are both reef safe serums. They have a total of 12 ingredients in common
Cool Features
They both contain hyaluronic acid and Vitamin E
Suited For
They're both likely to be good for anti aging, dry skin, brightening skin, sensitive skin and scar healing
Free From
They both do not contain any common allergens, oils, parabens or sulfates
What's Inside
They both contain harsh alcohols 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
La Roche-Posay Cicaplast B5 Serum for Dry Skin 16 ingredients
La Roche-Posay Hyalu B5 Face Serum with Hyaluronic Acid 22 ingredients
About this product
About this product
At a glance
Click on any of the items below to learn more
La Roche-Posay Cicaplast B5 Serum for Dry Skin 16 ingredients
La Roche-Posay Hyalu B5 Face Serum with Hyaluronic Acid 22 ingredients
Key Ingredients
Benefits
Concerns
Key Ingredients
Benefits
Concerns
Ingredients Side-by-side
Water
Skin ConditioningPanthenol
Skin Conditioning
Glycerin
Humectant
Alcohol Denat.
Antimicrobial
Dimethicone
Emollient
Hydroxyethylpiperazine Ethane Sulfonic Acid
BufferingPEG-20 Methyl Glucose Sesquistearate
Emulsifying
Sodium Hyaluronate
Humectant
Ammonium Polyacryloyldimethyl Taurate
Emulsion StabilisingCaprylyl Glycol
EmollientVitreoscilla Ferment
Skin ConditioningCitric Acid
Buffering
Xanthan Gum
EmulsifyingOctyldodecanol
EmollientTocopherol
Antioxidant
Phenoxyethanol
Preservative
Water, Panthenol, Glycerin, Alcohol Denat., Dimethicone, Hydroxyethylpiperazine Ethane Sulfonic Acid, PEG-20 Methyl Glucose Sesquistearate, Sodium Hyaluronate, Ammonium Polyacryloyldimethyl Taurate, Caprylyl Glycol, Vitreoscilla Ferment, Citric Acid, Xanthan Gum, Octyldodecanol, Tocopherol, Phenoxyethanol
Water
Skin ConditioningGlycerin
Humectant
Alcohol Denat.
Antimicrobial
Propylene Glycol
Humectant
Panthenol
Skin Conditioning
Pentylene Glycol
Skin ConditioningDimethicone
Emollient
PEG-6 Caprylic/Capric Glycerides
EmulsifyingPPG-6-Decyltetradeceth-30
EmulsifyingGlyceryl Isostearate
Emollient
Madecassoside
Antioxidant
Sodium Hyaluronate
Humectant
Ammonium Polyacryloyldimethyl Taurate
Emulsion StabilisingDisodium EDTA
Hydrolyzed Hyaluronic Acid
Humectant
Caprylyl Glycol
EmollientCitric Acid
Buffering
Xanthan Gum
EmulsifyingButylene Glycol
Humectant
Tocopherol
Antioxidant
Phenoxyethanol
Preservative
Parfum
Masking
Water, Glycerin, Alcohol Denat., Propylene Glycol, Panthenol, Pentylene Glycol, Dimethicone, PEG-6 Caprylic/Capric Glycerides, PPG-6-Decyltetradeceth-30, Glyceryl Isostearate, Madecassoside, Sodium Hyaluronate, Ammonium Polyacryloyldimethyl Taurate, Disodium EDTA, Hydrolyzed Hyaluronic Acid, Caprylyl Glycol, Citric Acid, Xanthan Gum, Butylene Glycol, Tocopherol, Phenoxyethanol, 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 WaterPanthenol 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 PanthenolGlycerin 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 GlycerinAlcohol Denat. is an alcohol with a denaturant property. It is created by mixing ethanol with other additives.
This ingredient gets a bad rep because it is irritating and drying - mostly due to its astringent property. Astringents draw out natural oils in tissue, constricting pores and leaving your skin dried out.
However, alcohol denat. is not all that bad.
Due to its low molecular weight, alcohol denat. tends to evaporate quickly. One study on pig skin found half of applied alcohol evaporated in 10 seconds and less than 3% stayed on skin.
This also helps other ingredients become better absorbed upon application.
Studies are conflicted about whether this ingredient causes skin dehydration. One study from 2005 found adding emollients to propanol-based sanitizer decreased skin dryness and irritation. Another study found irritation only occurs if your skin is already damaged.
Small amounts of alcohol are generally tolerated by oily skin or people who live in humid environments.
The rule of thumb is if this alcohol is near the end of an ingredients list, it will probably not affect your skin much.
Also...
This ingredient has antimicrobial and solvent properties.
The antimicrobial property helps preserve products and increase their shelf life. As a solvent, it helps dissolve other ingredients.
Other types of astringent alcohols include:
Learn more about Alcohol Denat.Dimethicone is a type of synthetic silicone created from natural materials such as quartz.
What it does:
Dimethicone comes in different viscosities:
Depending on the viscosity, dimethicone has different properties.
Ingredients lists don't always show which type is used, so we recommend reaching out to the brand if you have questions about the viscosity.
This ingredient is unlikely to cause irritation because it does not get absorbed into skin. However, people with silicone allergies should be careful about using this ingredient.
Note: Dimethicone may contribute to pilling. This is because it is not oil or water soluble, so pilling may occur when layered with products. When mixed with heavy oils in a formula, the outcome is also quite greasy.
Learn more about DimethiconeSodium 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 HyaluronateAmmonium 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 TaurateCaprylyl Glycol is a humectant and emollient, meaning it attracts and preserves moisture.
It is a common ingredient in many products, especially those designed to hydrate skin. The primary benefits are retaining moisture, skin softening, and promoting a healthy skin barrier.
Though Caprylyl Glycol is an alcohol derived from fatty acids, it is not the kind that can dry out skin.
This ingredient is also used as a preservative to extend the life of products. It has slight antimicrobial properties.
Learn more about Caprylyl GlycolCitric 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 AcidXanthan 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.
On the technical side of things, xanthan gum is a polysaccharide - a combination consisting of multiple sugar molecules bonded together.
Xanthan gum is a pretty common and great ingredient. It is a natural, non-toxic, non-irritating ingredient that is also commonly used in food products.
Learn more about Xanthan GumTocopherol (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.
Vitamin E also helps keep your natural skin lipids healthy. Your lipid skin barrier naturally consists of lipids, ceramides, and fatty acids. Vitamin E offers extra protection for your skin’s lipid barrier, keeping your skin healthy and nourished.
Another benefit is a bit of UV protection. Vitamin E helps reduce the damage caused by UVB rays. (It should not replace your sunscreen). Combining it with Vitamin C can decrease sunburned cells and hyperpigmentation after UV exposure.
You might have noticed Vitamin E + C often paired together. This is because it is great at stabilizing Vitamin C. Using the two together helps increase the effectiveness of both ingredients.
There are often claims that Vitamin E can reduce/prevent scarring, but these claims haven't been confirmed by scientific research.
Learn more about TocopherolPhenoxyethanol 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.
It's often used in formulations along with Caprylyl Glycol to preserve the shelf life of products.
Ingredient Ratings
Here's what our community thinks of the ingredients in these products.
When to use
La Roche-Posay Cicaplast B5 Serum for Dry Skin 16 ingredients
La Roche-Posay Hyalu B5 Face Serum with Hyaluronic Acid 22 ingredients
Reviews
Here's what our community thinks
La Roche-Posay Cicaplast B5 Serum for Dry Skin 16 ingredients
La Roche-Posay Hyalu B5 Face Serum with Hyaluronic Acid 22 ingredients
calming and non-irritant, doesnt trigger any redness, itchyness or burning sensation
Have yet to find a serum that compares. So so so hydrating and amazing. It’s my holy grail and I’ve been using it for nearly 5 years. Amazing AM and PM hydration boost.
