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

Replenix
Age Restore Bio-Repair Serum

Versus

Neutrogena
Hydro Boost + Niacinamide Serum

neutrogena-neutrogena-hydro-boost-niacinamide-serum-fragrance-free.

Product category and function

Age Restore Bio-Repair Serum

Hydro Boost + Niacinamide Serum

Serums/Treatments	Serums/Treatments
Concentrated formulas for hydrating and addressing skin issues.	Concentrated formulas for hydrating and addressing skin issues.
----	----

Ingredient highlights

Age Restore Bio-Repair Serum

Hydro Boost + Niacinamide Serum

Ingredient info	Ingredient info
Alcohol-free Paraben-free SLS-free Mica-free Fragrance-free cruelty-free	Alcohol-free Paraben-free SLS-free Mica-free Fragrance-free

Full ingredient list

Age Restore Bio-Repair Serum

Hydro Boost + Niacinamide Serum

No. of common ingredients = 0
Water, glycerin, cyclopentasiloxane, arabidopsis thaliana extract, plankton extract, evodia rutaecarpa fruit extract, squalane, ergothioneine, micrococcus lysate, caffeine, phospholipids, retinyl palmitate, ascorbyl palmitate, tocopheryl acetate, ethylhexylglycerin, acrylates/c10-30 alkyl acrylate crosspolymer, hydroxyethyl acrylate/sodium acryloyldimethyl taurate copolymer, lecithin, butylene glycol, pentylene glycol, polysorbate 60, phenoxyethanol, sodium hydroxide, disodium edta 7	Water, niacinamide, glycerin, acetyl glucosamine, pentylene glycol, dimethicone, phenoxyethanol, carbomer, disodium edta, sodium hyaluronate, sodium hydroxide, ethylhexylglycerin, dimethicone/vinyl dimethicone crosspolymer, amodimethicone

No. of common ingredients = 0

Total Number of ingredients = 24

Total Number of ingredients = 14

Water, glycerin, cyclopentasiloxane, arabidopsis thaliana extract, plankton extract, evodia rutaecarpa fruit extract, squalane, ergothioneine, micrococcus lysate, caffeine, phospholipids, retinyl palmitate, ascorbyl palmitate, tocopheryl acetate, ethylhexylglycerin, acrylates/c10-30 alkyl acrylate crosspolymer, hydroxyethyl acrylate/sodium acryloyldimethyl taurate copolymer, lecithin, butylene glycol, pentylene glycol, polysorbate 60, phenoxyethanol, sodium hydroxide, disodium edta

Water, niacinamide, glycerin, acetyl glucosamine, pentylene glycol, dimethicone, phenoxyethanol, carbomer, disodium edta, sodium hyaluronate, sodium hydroxide, ethylhexylglycerin, dimethicone/vinyl dimethicone crosspolymer, amodimethicone

Notable ingredients

Age Restore Bio-Repair Serum

Hydro Boost + Niacinamide Serum

Antioxidant: Arabidopsis thaliana extract, Ascorbyl palmitate, Caffeine, Ergothioneine, Tocopheryl acetate

Cell-signaling ingredient: Retinyl palmitate

Solvent: Water, Butylene glycol, Cyclopentasiloxane, Glycerin, Pentylene glycol

Anti-acne: Niacinamide

Soothing: Niacinamide

Skin brightening: Niacinamide, Acetyl glucosamine

Load all

Ingredients with their functions

Age Restore Bio-Repair Serum

Hydro Boost + Niacinamide Serum

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.

Glycerin

Also-called: Glycerol | Function: Skin-identical ingredient, Viscosity controlling, Skin protecting, Skin conditioning, Humectant/Moisturizer, Solvent

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

Cyclopentasiloxane

Function: Emollient/Moisturizer, Skin conditioning, Solvent

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

Water

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

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.

Glycerin

Also-called: Glycerol | Function: Skin-identical ingredient, Viscosity controlling, Skin protecting, Skin conditioning, Humectant/Moisturizer, Solvent