Hydroxyproline
Hydroxyproline is a surfactant and skin conditioning ingredient. It’s in 8 products on Poliage, most often cleanser, moisturizer and serum. Avoid lists on Poliage that include it: none.
Updated October 23, 2026
In plain English
An amino acid. Conditions skin and hair.
What it does
Contains Hydroxyproline: antistatic
Function listed in CosIng
Contains Hydroxyproline: hair-conditioning
Function listed in CosIng
Contains Hydroxyproline: skin-conditioning
Function listed in CosIng
Contains Hydroxyproline: surfactant
Function listed in CosIng
Source: CosIng, the European Commission cosmetic ingredient database, ref 34525, accessed October 22, 2026.
Products that contain Hydroxyproline
CHI
Aloe Vera Curl Enhancing Shampoo
Shampoo · Lists fragrance, fragrance allergens, silicones, coconut derivatives
Drunk Elephant
B-Hydra Intensive Hydration Serum with Hyaluronic Acid
Serum · Lists coconut derivatives
Thrive Causemetics
Bright Balance Hydrating Gel Cleanser
Cleanser · Lists fragrance allergens, essential oils, coconut derivatives
boscia
Cryosea Firming Icy-cold Cleanser
Lists exfoliating acid, coconut derivatives
Thrive Causemetics
Deluxe Bright Balance Hydrating Gel Cleanser
Cleanser · Lists fragrance allergens, essential oils, coconut derivatives
Dr. Dennis Gross
Dewy Deep Cream
Moisturizer · Lists exfoliating acid, essential oils, silicones
L’Oréal
Hydra Energetic Bille glacée Yeux anti-poches + anti-cernes
None of Poliage’s flag groups listed
Allies of Skin
Molecular Barrier Recovery Cream Balm
Moisturizer · None of Poliage’s flag groups listed
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