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What-it-does: moisturizer/humectant


A biocompatible copolymer (a big molecule that consists of more than one type of building blocks) that has the same structure as important cell membrane ingredient, phospholipid. It's a good skin moisturizer, leaves a silky, smooth feel on the skin and can help to reduce irritation caused by some not-so-nice ingredients (like surfactants).

Products with Polyquaternium-51

KLAVUU Sensitive Care Sea Silt Repair Toner Lululun Daily Facial Mask Extra Moisturizing Missha Time Revolution First Treatment Essence Intensive Tony moly The Black Tea London Classic Serum Botanic Farm Rice Ferment First Essence Nature Republic Soothing & Moisture Aloe Vera 90% Toner LEEGEEHAAM Peeling Gel innisfree Blueberry Rebalancing Skin CULLUN Ultra Radiance Hydrating Mist Isntree Hyaluronic Acid Water Sleeping Mask Klairs Rich Moist Soothing Serum Onomie Radical Setting Mist Purid Refreshing Brightening Serum Umoua Barrier Repair Essential Emulsion Huxley Secret Of Sahara Oil Essence; Essence-Like, Oil-Like Klairs Supple Preparation Facial Toner Klairs Supple Preparation Toner Unscented Missha Time Revolution Night Repair Probio Ampoule Cream Missha Time Revolution The First Treatment Essence Intensive [Moist] LEEGEEHAAM Grow Hyal B5 Ampoule e.l.f. Hydrating Water Essence Missha Time Revolution Artemisia Ampoule Missha Time Revolution The First Treatment Essence Rx [Pro Ferment] Muji Light Toning Water - High Moisture Muji Moisturizing Milk Moisture Muji Seaweed Body Milk Muji Sensitive Skin Cleansing Oil Muji Sensitive Skin Sheet Mask Nivea Sun Protect Water Milk Mild Holika Holika Good Cera Super Ceramide Toner LEEGEEHAAM Grow Tea Tree 70 Spot Muji Sheet Mask Doctor Babor Rose Toning Essence Muji Sensitive Skin Moisturising Milk High Moisture NYDG Ultra-Light Hydra-Gel Klairs Rich Moist Soothing Cream Clinique Foaming Sonic Facial Soap Kenzoki Melt-In Moisturizing Lotion Klairs Supple Preparation All-Over Lotion Nature Republic Soothing & Moisture Aloe Vera 92% Soothing Gel Mist Shiseido Syncro Skin Self-Refreshing Foundation Spf 30 Thalgo Hyaluronic Mask Umoua Barrier Repair Essence Advanced Verso Deep Hydration Mask Althea Real Fresh Skin Detoxer: Rose Hada Labo Gokujyun Premium Hyaluron Milk Emulsion Hada Labo Gokujyun Premium Hyaluronic Acid Lotion IOPE Whitegen Eye Serum Bioderma Atoderm Hand Cream Bobby Brown Extra Treatment Lotion