Versus

SkinCeuticals Phyto A+ Brightening Treatment Moisturizer Versus La Roche-Posay Toleriane Ultra Dermallergo Serum

General Moisturizer
Serum
American Brand United States
French Brand France

Updated on March 23, 2025

Overview

What they are

These products are both reef safe . They have a total of 6 ingredients in common

Cool Features

They both contain hyaluronic acid

Suited For

They're both likely to be good for dry skin, brightening skin, sensitive skin and dark spots

Free From

They both do not contain any oils, parabens, silicones or sulfates

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

Click any item below to learn more and see relevant ingredients

About this product

About this product

At a glance

Click on any of the items below to learn more

Key Ingredients

Benefits

Concerns

Benefits

Ingredients Side-by-side

found in both products
Phyto A+ Brightening Treatment Moisturizer

Ingredients Explained

These ingredients are found in both products.

Ingredients higher up in an ingredient list are typically present in a larger amount.

Skin Conditioning, Solvent

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 Water
Humectant, Skin Conditioning, Skin Protecting

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 Glycerin

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 Taurate
Antioxidant

Hydroxyacetophenone is antioxidant with skin conditioning and soothing properties. It also boosts the efficiency of preservatives.

This ingredient is not irritating or sensitizing.

Humectant, Skin Conditioning

Sodium 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 Hyaluronate
Emollient, Humectant, Skin Conditioning

Caprylyl 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 Glycol

When to use

21 Routines
67% use in am
33% use in pm
90% use every day
59 Routines
41% use in am
59% use in pm
88% use every day
When to use See routines that use it ->

Reviews

Here's what our community thinks

SkinCeuticals Phyto A+ Brightening Treatment Moisturizer 37 ingredients

3.0 /5
from 1 rating
Absorbs Well (1) Expensive (1) Light (1)
magicalmarion's avatar

magicalmarion

1 year ago
Review

For the fungal acne girlies its a no no. However if you have an uneven skintone this product brightens very good. As a moisturizer alone it is not enough (i have mixed skin, oily t-zone). Also the price is way too expensive and not fair. There are better and cheaper products on the market.

#expensive
#light
#absorbs well

La Roche-Posay Toleriane Ultra Dermallergo Serum 15 ingredients

2.5 /5
from 2 ratings
No Scent (2) Expensive (1) Heavy (1)
Helena_Ruao's avatar

Helena Ruão

9 months ago
Review

Expensive, and it did nothing for me - I didn't notice any soothing or red reduction from my seb derm after using it for more than 1 year. My combination skin still felt tight in the winter, and oily in the summer. Sadly, this is an anecdotal serum.

#expensive
#no scent
#doesn't work
ylannguyen's avatar

Y-Lan

8 months ago
Review

This serum deeply hydrates my skin. It’s quite thick and sticky so I would recommend applying it only during the night routine. It’s perfect when my skin needs to be moisturized. My acne-prone skin did not have any problem with it.

#hydrating
#heavy
#sticky
#no scent