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

TRESemme
Keratin Smooth Weightless Perfecting Leave In Lotion

Versus

Redken
Extreme Length Leave In Treatment With Biotin

Product category and function

Keratin Smooth Weightless Perfecting Leave In Lotion

Extreme Length Leave In Treatment With Biotin

Leave-in Treatments	Leave-in Treatments
No-rinse products for ongoing hair repair and protection.	No-rinse products for ongoing hair repair and protection.
----	----

Ingredient highlights

Keratin Smooth Weightless Perfecting Leave In Lotion

Extreme Length Leave In Treatment With Biotin

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

Keratin Smooth Weightless Perfecting Leave In Lotion

Extreme Length Leave In Treatment With Biotin

No. of common ingredients = 0
Water (aqua), glycerin, cetyl alcohol, panthenol, hydrolyzed keratin, polyquaternium-28, cyclopentasiloxane, phenoxyethanol, phenyl trimethicone, fragrance (parfum), polyquaternium-37, stearyl alcohol, propylene glycol dicaprylate/dicaprate, dimethiconol, steareth-21, pvm/ma copolymer, ppg-1 trideceth-6, citric acid, iodopropynyl butylcarbamate, benzyl alcohol, benzyl salicylate, citronellol, geraniol, hexyl cinnamal, limonene, linalool 12	Aqua/water/eau, amodimethicone, cetearyl alcohol, trideceth-5, polyquaternium-37, phenoxyethanol, propylene glycol dicaprylate, steareth-20, parfum/fragrance, sodium hydroxide, citric acid, glycerin, phenyl trimethicone, cetyl hydroxyethylcellulose, trideceth-10, ppg-1 trideceth-6, cetyl alcohol, prunus amygdalus dulcis oil, biotin, polyquaternium-67, arginine, behentrimonium methosulfate, chlorhexidine digluconate, quaternium-33, sorbitan oleate, acetic acid, benzyl benzoate, 2-oleamido-1,3-octadecanediol, hydrolyzed soy protein, limonene, benzyl alcohol, linalool, silica dimethyl silylate, hydrated silica, polysorbate 60, hydrolyzed vegetable protein pg-propyl silanetriol, sodium acetate, sodium chloride, isopropyl alcohol, potassium sorbate

No. of common ingredients = 0

Total Number of ingredients = 26

Total Number of ingredients = 40

Water (aqua), glycerin, cetyl alcohol, panthenol, hydrolyzed keratin, polyquaternium-28, cyclopentasiloxane, phenoxyethanol, phenyl trimethicone, fragrance (parfum), polyquaternium-37, stearyl alcohol, propylene glycol dicaprylate/dicaprate, dimethiconol, steareth-21, pvm/ma copolymer, ppg-1 trideceth-6, citric acid, iodopropynyl butylcarbamate, benzyl alcohol, benzyl salicylate, citronellol, geraniol, hexyl cinnamal, limonene, linalool

Aqua/water/eau, amodimethicone, cetearyl alcohol, trideceth-5, polyquaternium-37, phenoxyethanol, propylene glycol dicaprylate, steareth-20, parfum/fragrance, sodium hydroxide, citric acid, glycerin, phenyl trimethicone, cetyl hydroxyethylcellulose, trideceth-10, ppg-1 trideceth-6, cetyl alcohol, prunus amygdalus dulcis oil, biotin, polyquaternium-67, arginine, behentrimonium methosulfate, chlorhexidine digluconate, quaternium-33, sorbitan oleate, acetic acid, benzyl benzoate, 2-oleamido-1,3-octadecanediol, hydrolyzed soy protein, limonene, benzyl alcohol, linalool, silica dimethyl silylate, hydrated silica, polysorbate 60, hydrolyzed vegetable protein pg-propyl silanetriol, sodium acetate, sodium chloride, isopropyl alcohol, potassium sorbate

Notable ingredients

Keratin Smooth Weightless Perfecting Leave In Lotion

Extreme Length Leave In Treatment With Biotin

Soothing: Panthenol

Solvent: Water (aqua), Benzyl alcohol, Cyclopentasiloxane, Glycerin, Limonene

Anti-microbial: Phenoxyethanol

Solvent: Aqua/water/eau, Benzyl alcohol, Benzyl benzoate, Glycerin, Limonene, Isopropyl alcohol

Abrasive: Hydrated silica

Absorbent: Hydrated silica

Load all

Ingredients with their functions

Keratin Smooth Weightless Perfecting Leave In Lotion

Extreme Length Leave In Treatment With Biotin

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.

Glycerin

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