Estee Lauder Perfectionist pro rapid brightening treatment serum with ferment + vitamin c Versus La Mer The revitalizing hydrating 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 info	Ingredient info
Alcohol-free Paraben-free SLS-free Mica-free Fragrance-free	Alcohol-free Paraben-free SLS-free Mica-free Fragrance-free

No. of common ingredients = 0
Water/aqua/eau, butylene glycol, glycerin, glycereth-26, isononyl isononanoate, dimethicone, propanediol, ascorbyl glucoside, algae extract, acetyl glucosamine, hydroxyethyl urea, lens esculenta (lentil) fruit extract, molasses extract/saccharum officinarum/extrait de melasse, pyrus malus (apple) fruit extract, avena sativa (oat) kernel extract, bis-peg-18 methyl ether dimethyl silane, citrullus lanatus (watermelon) fruit extract, triticum vulgare (wheat) germ extract, resveratrol, artemia extract, tocopheryl acetate, sucrose, trehalose, salicylic acid, peg-75, yeast extract/faex/extrait de levure, sodium hydroxide, oleth-3 phosphate, sorbitol, caprylyl glycol, hordeum vulgare (barley) extract/extrait d'orge, oleth-3, sodium polyaspartate, carbomer, myrtus communis leaf extract, caffeine, oleth-5, acrylates/c10-30 alkyl acrylate crosspolymer, dipotassium glycyrrhizate, propylene glycol caprylate, squalane, sodium hyaluronate, choleth-24, ceteth-24, xanthan gum, sodium lactate, oryzanol, sodium pca, glyceryl acrylate/acrylic acid copolymer, ethylhexylglycerin, glucose, fragrance (parfum), sodium citrate, citric acid, disodium edta, bht, potassium sorbate, sodium benzoate, phenoxyethanol 26	Water/aqua/eau, butylene glycol, glycerin, yeast extract/faex/extrait de levure, bis-peg-12 dimethicone, hydrogenated lecithin, algae extract, sesamum indicum (sesame) seed oil, medicago sativa (alfalfa) seed powder, helianthus annuus (sunflower) seedcake, prunus amygdalus dulcis (sweet almond) seed meal, eucalyptus globulus (eucalyptus) leaf oil, sodium gluconate, copper gluconate, calcium gluconate, magnesium gluconate, zinc gluconate, tocopheryl succinate, niacin, sesamum indicum (sesame) seed powder, limnanthes alba (meadowfoam) seed oil, sucrose, caprylic/capric triglyceride, citrus aurantifolia (lime) peel extract, codium tomentosum extract, asparagopsis armata extract, salicornia herbacea extract, alcaligenes polysaccharides, glucose, porphyridium cruentum extract, sigesbeckia orientalis (st. paul's wort) extract, squalane, cholesterol, caffeine, undaria pinnatifida extract, ascophyllum nodosum extract, laminaria digitata extract, sea salt (maris sal/sel marin), castanea sativa (chestnut) seed extract, plankton extract, acetyl hexapeptide-8, trehalose, lactoperoxidase, dimethicone, lecithin, dipotassium glycyrrhizate, glycine soja (soybean) protein, glucose oxidase, hydrolyzed rice extract, laminaria saccharina extract, bisabolol, ethylhexylglycerin, sodium pca, tourmaline, sorbitol, urea, sodium hyaluronate, caprylyl glycol, calcium chloride, sodium chloride, carbomer, xanthan gum, polyquaternium-51, triacetin, alcohol denat., fragrance (parfum), geraniol, hydroxycitronellal, citronellol, limonene, linalool, tocopheryl acetate, bht, magnesium ascorbyl phosphate, disodium edta, potassium phosphate, sodium hydroxide, phenoxyethanol, potassium sorbate, chlorphenesin, sorbic acid, blue 1 (ci 42090), red 4 (ci 14700)

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.

Butylene glycol

Function: Viscosity controlling, Skin conditioning, Humectant/Moisturizer, Solvent