Threonine
Threonine is a hair conditioning and hair waving or straightening ingredient. It’s in 92 products on Poliage, most often conditioner, serum and moisturizer. Avoid lists on Poliage that include it: none.
Updated October 23, 2026
In plain English
Threonine: used to make hair smoother and easier to comb. Also used in hair-waving and straightening products.
What it does
Contains Threonine: antistatic
Function listed in CosIng
Contains Threonine: hair-conditioning
Function listed in CosIng
Contains Threonine: hair-waving-or-straightening
Function listed in CosIng
Source: CosIng, the European Commission cosmetic ingredient database, ref 38594, accessed October 22, 2026.
Products that contain Threonine
Peach & Lily
Advanced Rebound Bioglow Zombie Cream™
Moisturizer · None of Poliage’s flag groups listed
Innersense
Air Dry Styling Cream
Hair styling · Lists fragrance, fragrance allergens, essential oils, coconut derivatives
The Ordinary
Amino Acids + B5
Serum · None of Poliage’s flag groups listed
Drunk Elephant
Amino Rain Glasswater Serum
Serum · Lists coconut derivatives
Medicube
Azelaic Acid Niacinamide Toner
Toner · None of Poliage’s flag groups listed
Sephora
Beauty insider
Lists coconut derivatives
Dr. Dennis Gross
BioRejuvenation Serum Collagen Amino Acids + G.N.A.
Serum · Lists fragrance allergens, exfoliating acid, retinoid, silicones, coconut derivatives
Skinfood
Black Sugar Perfect Cleansing Oil
Lists fragrance, drying alcohol, silicones
Moroccanoil
Blonde Perfecting Purple Conditioner
Conditioner · Lists fragrance, fragrance allergens, drying alcohol, silicones
Moroccanoil
Body Lotion Ambiance de Plage
Body lotion · Lists fragrance, fragrance allergens
Moroccanoil
Body Lotion Ambre Noir
Body lotion · Lists fragrance, fragrance allergens
Moroccanoil
Body Lotion Bergamote Fraîche
Body lotion · Lists fragrance
Moroccanoil
Body Lotion Dahlia Rouge
Body lotion · Lists fragrance, fragrance allergens
Moroccanoil
Body Lotion Fragrance Originale
Body lotion · Lists fragrance
Moroccanoil
Body Lotion Oud Minéral
Body lotion · Lists fragrance, fragrance allergens
Moroccanoil
Body Lotion Soleil de Tanger
Body lotion · Lists fragrance, fragrance allergens
Moroccanoil
Body Lotion Spa Du Maroc
Body lotion · Lists fragrance, fragrance allergens
Salt & Stone
Body Wash
Body wash · Lists fragrance, fragrance allergens, coconut derivatives
Thrive Causemetics
Bright Balance 2-in-1 Instant Exfoliator
Exfoliant · Lists exfoliating acid, salicylic acid, coconut derivatives
Torriden
CELLMAZING Collagen Firming Cream
Moisturizer · Lists silicones
Torriden
CELLMAZING Firming Gel Mask (Face Only)
Mask · None of Poliage’s flag groups listed
Dermalogica
Circular Hydration Serum
Serum · Lists fragrance allergens, exfoliating acid, essential oils
Murad
Clarifying Cream Cleanser
Cleanser · Lists fragrance, exfoliating acid, essential oils, salicylic acid, coconut derivatives
collagen face mask
None of Poliage’s flag groups listed
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