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SkinCeuticals
Hyaluronic Acid Intensifier (H.A.)

Versus

Kiehl's
Vital Skin Strengthening Hyaluronic Acid Super Serum

Product category and function

Hyaluronic Acid Intensifier (H.A.)

Vital Skin Strengthening Hyaluronic Acid Super Serum

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

Hyaluronic Acid Intensifier (H.A.)

Vital Skin Strengthening Hyaluronic Acid Super 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

Hyaluronic Acid Intensifier (H.A.)

Vital Skin Strengthening Hyaluronic Acid Super Serum

No. of common ingredients = 0
Water, cyclohexasiloxane, glycerin, alcohol denat., hydroxypropyl tetrahydropyrantriol, propylene glycol, dipotassium glycyrrhizate, polysilicone-11, polymethylsilsesquioxane, sodium hyaluronate, dimethicone, tocopherol, phenoxyethanol, capryloyl salicylic acid, octyldodecanol, bis-peg/ppg-16/16 peg/ppg-16/16 dimethicone, peg-20 methyl glucose sesquistearate, ammonium polyacryloyldimethyl taurate, caprylyl glycol, xanthan gum, dextrin, oryza sativa extract (rice extract), disodium edta, caprylic/capric triglyceride, sodium hydroxide, adenosine, citrus nobilis peel oil (mandarin orange peel oil), limonene, t-butyl alcohol, cellulose acetate butyrate, polyphosphorylcholine glycol acrylate, polyvinyl alcohol, sodium chloride, butylene glycol, pentaerythrityl tetra-di-t-butyl hydroxyhydrocinnamate 15	Aqua/water, dimethicone, glycerin, alcohol denat., hamamelis virginiana water (witch hazel water), propanediol, phenoxyethanol, tocopherol, ammonium polyacryloyldimethyl taurate, schisandra chinensis fruit extract, capryloyl salicylic acid, caprylyl glycol, xanthan gum, peg-60 hydrogenated castor oil, panax ginseng root extract, sodium acetylated hyaluronate, peg-20 methyl glucose sesquistearate, disodium edta, ocimum sanctum leaf extract, citrus aurantium dulcis peel oil (orange peel oil), limonene, adenosine, sodium hydroxide, methyldihydrojasmonate, citric acid, eugenol, sodium benzoate, pelargonium graveolens flower oil, citral, potassium sorbate, lavandula angustifolia oil (lavender oil), cymbopogon schoenanthus oil, citronellol, linalool, geraniol, rosmarinus officinalis leaf oil (rosemary leaf oil)

No. of common ingredients = 0

Total Number of ingredients = 35

Total Number of ingredients = 36

Water, cyclohexasiloxane, glycerin, alcohol denat., hydroxypropyl tetrahydropyrantriol, propylene glycol, dipotassium glycyrrhizate, polysilicone-11, polymethylsilsesquioxane, sodium hyaluronate, dimethicone, tocopherol, phenoxyethanol, capryloyl salicylic acid, octyldodecanol, bis-peg/ppg-16/16 peg/ppg-16/16 dimethicone, peg-20 methyl glucose sesquistearate, ammonium polyacryloyldimethyl taurate, caprylyl glycol, xanthan gum, dextrin, oryza sativa extract (rice extract), disodium edta, caprylic/capric triglyceride, sodium hydroxide, adenosine, citrus nobilis peel oil (mandarin orange peel oil), limonene, t-butyl alcohol, cellulose acetate butyrate, polyphosphorylcholine glycol acrylate, polyvinyl alcohol, sodium chloride, butylene glycol, pentaerythrityl tetra-di-t-butyl hydroxyhydrocinnamate

Aqua/water, dimethicone, glycerin, alcohol denat., hamamelis virginiana water (witch hazel water), propanediol, phenoxyethanol, tocopherol, ammonium polyacryloyldimethyl taurate, schisandra chinensis fruit extract, capryloyl salicylic acid, caprylyl glycol, xanthan gum, peg-60 hydrogenated castor oil, panax ginseng root extract, sodium acetylated hyaluronate, peg-20 methyl glucose sesquistearate, disodium edta, ocimum sanctum leaf extract, citrus aurantium dulcis peel oil (orange peel oil), limonene, adenosine, sodium hydroxide, methyldihydrojasmonate, citric acid, eugenol, sodium benzoate, pelargonium graveolens flower oil, citral, potassium sorbate, lavandula angustifolia oil (lavender oil), cymbopogon schoenanthus oil, citronellol, linalool, geraniol, rosmarinus officinalis leaf oil (rosemary leaf oil)

Notable ingredients

Hyaluronic Acid Intensifier (H.A.)

Vital Skin Strengthening Hyaluronic Acid Super Serum

Antioxidant: Pentaerythrityl tetra-di-t-butyl hydroxyhydrocinnamate, Tocopherol

Exfoliant: Capryloyl salicylic acid

Solvent: Water, Alcohol denat, Butylene glycol, Caprylic/capric triglyceride, Cyclohexasiloxane, Glycerin, Limonene, Propylene glycol, T-butyl alcohol, Octyldodecanol

Soothing: Hamamelis virginiana water (witch hazel water)

Antioxidant: Tocopherol

Exfoliant: Capryloyl salicylic acid

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Ingredients with their functions

Hyaluronic Acid Intensifier (H.A.)

Vital Skin Strengthening Hyaluronic Acid Super 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.

Cyclohexasiloxane

Function: Emollient/Moisturizer, Skin conditioning, Solvent

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

Glycerin

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