Proline
Proline is a skin conditioning and hair conditioning ingredient. It’s in 101 products on Poliage, most often conditioner, serum and body lotion. Avoid lists on Poliage that include it: none.
Updated October 22, 2026
In plain English
Proline: used to make hair smoother and easier to comb.
What it does
Contains Proline: hair-conditioning
Function listed in CosIng
Contains Proline: skin-conditioning
Function listed in CosIng
Source: CosIng, the European Commission cosmetic ingredient database, ref 78685, accessed October 22, 2026.
Products that contain Proline
Thrive Causemetics
Bright Balance Hydrating Gel Cleanser
Cleanser · Lists fragrance allergens, essential oils, coconut derivatives
Torriden
CELLMAZING Brightening Mask
Mask · None of Poliage’s flag groups listed
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
Soapbox
Collagen & Fruit Enzymes Repairing Conditioner
Conditioner · Lists fragrance, fragrance allergens
Soapbox
Collagen & Fruit Enzymes Repairing Shampoo
Shampoo · Lists fragrance, fragrance allergens, coconut derivatives
collagen face mask
None of Poliage’s flag groups listed
Pacifica
Cosmic Hemp Balancing Face Wash
Lists fragrance, coconut derivatives
boscia
Cryosea Firming Icy-cold Cleanser
Lists exfoliating acid, coconut derivatives
Kristin Ess
Curl Conditioner
Conditioner · Lists fragrance, fragrance allergens
Kristin Ess
Curl Shampoo
Shampoo · Lists fragrance, fragrance allergens, coconut derivatives
Dove
Damage Therapy Amino Curl Define Soft Touch Curl Cream
Hair styling · Lists fragrance, fragrance allergens, exfoliating acid, silicones
Davines
Davines MOMO Moisturizing Shampoo
Lists fragrance, fragrance allergens, essential oils, coconut derivatives
Medicube
Deep Reviving Peptide Eye Cream
Eye cream · Lists fragrance, fragrance allergens, silicones
Thrive Causemetics
Deluxe Bright Balance Hydrating Gel Cleanser
Cleanser · Lists fragrance allergens, essential oils, coconut derivatives
dr groot shampoo
Lists fragrance, drying alcohol, exfoliating acid, salicylic acid, coconut derivatives
Skinfood
Egg White Pore Foam
Lists fragrance, drying alcohol, silicones, coconut derivatives
Medik8
Exo-PDRN Prismatic+
Serum · Lists fragrance allergens
Allies of Skin
Founder’s Essence 56 Ellagic & P.A.D. Light Reflecting Fluid
Toner · Lists exfoliating acid
Moroccanoil
Frizz Shield Spray
Hair styling · Lists fragrance, fragrance allergens, exfoliating acid, silicones
R+Co
GEMSTONE Color Conditioner
Conditioner · Lists fragrance, fragrance allergens, coconut derivatives
The Ordinary
Glycolic Acid 7% Exfoliating Toner
Exfoliant · Lists exfoliating acid
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