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

Alastin
A-Luminate Brightening Serum

Versus

Tatcha
The Silk Serum

Product category and function

A-Luminate Brightening Serum

The Silk Serum

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

Ingredient highlights

A-Luminate Brightening Serum

The Silk 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 cruelty-free

Full ingredient list

A-Luminate Brightening Serum

The Silk Serum

No. of common ingredients = 0
Water/aqua/eau, squalane, glycerin, niacinamide, sodium acrylates copolymer, thermus thermophillus ferment, tranexamic acid, glucosyl hesperidin, silybum marianum (milk thistle) extract, withania somnifera (ashwagandha) root extract, lactoferrin, plankton extract, tremella fuciformis sporocarp (silver ear mushroom) extract, pancratium maritimum (sea daffodil) extract, dunaliella salina extract, pentasodium tetracarboxymethyl acetylhydroxyprolyl dipeptide-12, hexapeptide-11, hexapeptide-12, pentasodium tetracarboxymethyl dipeptide-51, phosphatidylserine, diglucosyl gallic acid, phospholipids, fructose, betaine, ascorbyl palmitate, propanediol, lecithin, caprylyl methicone, dimethicone, mannitol, phosphatidylcholine, 1,2-hexanediol, cetyl alcohol, xanthan gum, tocopherol, citric acid, helianthus annuus (sunflower) seed oil, decyl glucoside, caprylyl glycol, ethylhexylglycerin, caprylhydroxamic acid, potassium sorbate, sodium benzoate, phenoxyethanol, sodium chloride, silica, tin oxide (ci 77861), ci 77891/titanium dioxide 13	Aqua/water/eau, saccharomyces/rice ferment filtrate, glycerin, betaine, pentylene glycol, caprylic/capric triglyceride, propanediol, parfum/fragrance, vaccinium macrocarpon (cranberry) fruit extract, crithmum maritimum extract, camellia sinensis leaf extract, cladosiphon okamuranus extract, squalane, sericin, morus alba leaf extract, hydrolyzed silk, carthamus tinctorius (safflower) seed oil, tetrapeptide-4, polyglyceryl-10 stearate, diglucosyl gallic acid, helianthus annuus (sunflower) seed oil, hydrolyzed conchiolin protein, caprylyl glycol, acrylates/c10-30 alkyl acrylate crosspolymer, 1,2-hexanediol, butylene glycol, sodium citrate, citric acid, potassium hydroxide, synthetic fluorphlogopite, citral, limonene, linalool, ethylhexylglycerin, phenoxyethanol, titanium dioxide (ci 77891), tin oxide (ci 77861)

No. of common ingredients = 0

Total Number of ingredients = 48

Total Number of ingredients = 37

Water/aqua/eau, squalane, glycerin, niacinamide, sodium acrylates copolymer, thermus thermophillus ferment, tranexamic acid, glucosyl hesperidin, silybum marianum (milk thistle) extract, withania somnifera (ashwagandha) root extract, lactoferrin, plankton extract, tremella fuciformis sporocarp (silver ear mushroom) extract, pancratium maritimum (sea daffodil) extract, dunaliella salina extract, pentasodium tetracarboxymethyl acetylhydroxyprolyl dipeptide-12, hexapeptide-11, hexapeptide-12, pentasodium tetracarboxymethyl dipeptide-51, phosphatidylserine, diglucosyl gallic acid, phospholipids, fructose, betaine, ascorbyl palmitate, propanediol, lecithin, caprylyl methicone, dimethicone, mannitol, phosphatidylcholine, 1,2-hexanediol, cetyl alcohol, xanthan gum, tocopherol, citric acid, helianthus annuus (sunflower) seed oil, decyl glucoside, caprylyl glycol, ethylhexylglycerin, caprylhydroxamic acid, potassium sorbate, sodium benzoate, phenoxyethanol, sodium chloride, silica, tin oxide (ci 77861), ci 77891/titanium dioxide

Aqua/water/eau, saccharomyces/rice ferment filtrate, glycerin, betaine, pentylene glycol, caprylic/capric triglyceride, propanediol, parfum/fragrance, vaccinium macrocarpon (cranberry) fruit extract, crithmum maritimum extract, camellia sinensis leaf extract, cladosiphon okamuranus extract, squalane, sericin, morus alba leaf extract, hydrolyzed silk, carthamus tinctorius (safflower) seed oil, tetrapeptide-4, polyglyceryl-10 stearate, diglucosyl gallic acid, helianthus annuus (sunflower) seed oil, hydrolyzed conchiolin protein, caprylyl glycol, acrylates/c10-30 alkyl acrylate crosspolymer, 1,2-hexanediol, butylene glycol, sodium citrate, citric acid, potassium hydroxide, synthetic fluorphlogopite, citral, limonene, linalool, ethylhexylglycerin, phenoxyethanol, titanium dioxide (ci 77891), tin oxide (ci 77861)

Notable ingredients

A-Luminate Brightening Serum

The Silk Serum

Anti-acne: Niacinamide

Soothing: Niacinamide, Silybum marianum (milk thistle) extract

Skin brightening: Niacinamide, Tranexamic acid

Sunscreen/UV filter: Titanium dioxide (ci 77891)

Antioxidant: Camellia sinensis leaf extract, Carthamus tinctorius (safflower) seed oil

Solvent: Aqua/water/eau, 1,2-hexanediol, Butylene glycol, Caprylic/capric triglyceride, Glycerin, Helianthus annuus (sunflower) seed oil, Limonene, Propanediol, Pentylene glycol

Load all

Ingredients with their functions

A-Luminate Brightening Serum

The Silk Serum

Water/aqua/eau

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.

Squalane

Function: Emollient/Moisturizer, Skin conditioning

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