Disclosure: This page may contain affiliate links. Read our full disclosure policy.

RENNE ROULEAU SKINCARE Ultra Gentle Smoothing Serum.
Nourish Max NIACINAMIDE MULTI ACTION JELLY SERUM.

Product category and function

Ultra Gentle Smoothing Serum
Niacinamide Multi Action Jelly Serum
Serums/Treatments Serums/Treatments
Concentrated formulas for hydrating and addressing skin issues.
Concentrated formulas for hydrating and addressing skin issues.
---- ----

Ingredient highlights

Ultra Gentle Smoothing Serum
Niacinamide Multi Action Jelly Serum
Ingredient info Ingredient info

Alcohol-free

Paraben-free

SLS-free

Mica-free

Fragrance-free

Alcohol-free

Paraben-free

SLS-free

Mica-free

Fragrance-free

Full ingredient list

Ultra Gentle Smoothing Serum
Niacinamide Multi Action Jelly Serum
No. of common ingredients = 0
Total Number of ingredients = 12 Total Number of ingredients = 22
Water, lactic acid, glycolic acid, glycerin, hydroxyethylcellulose, aloe barbadensis leaf juice, allantoin, tetrasodium glutamate diacetate, sodium benzoate, aminomethyl propanol (ph adjuster), sodium hydroxide, potassium sorbate Water (aqua), niacinamide, pentylene glycol, aloe barbadensis leaf juice, isopentyldiol, sodium polyacryloyldimethyl taurate, carbomer, zinc pca, trifolium pratense flower extract, capryloyl glycine, hexylene glycol, capryloyl salicylic acid, sarcosine, cinnamomum zeylanicum bark extract, sodium hydroxide, tetrasodium glutamate diacetate, sodium chloride, phenoxyethanol, ethylhexylglycerin, potassium sorbate, sodium benzoate, sodium carbonate

Notable ingredients

Ultra Gentle Smoothing Serum
Niacinamide Multi Action Jelly Serum

Ingredients with their functions

Ultra Gentle Smoothing Serum
Niacinamide Multi Action Jelly Serum

1

Water

Also-called: Aqua, Aqua/Water, Water/Aqua/Eau, Aqua/Water/Eau | Function: Skin conditioning, Solvent

Water serves as a fundamental component in skincare products, often listed as the first ingredient, which means it's the most abundant. It acts as a solvent, helping to dissolve other ingredients and facilitate the application and absorption of products.

2

Lactic acid

Function: Skin conditioning, Humectant/Moisturizer, Buffering, Exfoliant

We don’t have a detailed description of this ingredient yet.

3

Glycolic acid

Function: Buffering, Exfoliant

We don’t have a detailed description of this ingredient yet.

1

Water (aqua)

Also-called: Aqua, Aqua/Water, Water/Aqua/Eau, Aqua/Water/Eau | Function: Skin conditioning, Solvent

Water serves as a fundamental component in skincare products, often listed as the first ingredient, which means it's the most abundant. It acts as a solvent, helping to dissolve other ingredients and facilitate the application and absorption of products.

2

Niacinamide

Also-called: Nicotinamide, Vitamin B3 | Function: Anti-acne, Soothing, Skin brightening, Cell-signaling ingredient

Niacinamide, also known as vitamin B3, is a potent skincare ingredient renowned for its wide-ranging benefits. 

It helps to strengthen the skin's barrier function, improve skin texture, and reduce the appearance of fine lines and wrinkles. It's also effective in managing acne and reducing redness and inflammation. 

Furthermore, it inhibits melanin production, thereby assisting in fading hyperpigmentation and evening out skin tone. Safe for almost all skin types, niacinamide is a versatile ingredient found in various skincare products.

3

Pentylene glycol

Function: Skin conditioning, Solvent

We don’t have a detailed description of this ingredient yet.

Price range

Ultra Gentle Smoothing Serum
Niacinamide Multi Action Jelly Serum
$20 to $50
$20 to $50

Where to buy

Ultra Gentle Smoothing Serum
Niacinamide Multi Action Jelly Serum

Near dupes

Ultra Gentle Smoothing Serum
Niacinamide Multi Action Jelly Serum

Beautymasterlist footer icon

© 2026 Beauty Master List, All Rights Reserved.