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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 Huxley Secret Of Sahara Oil Essence; Essence-Like, Oil-Like Klairs Supple Preparation Facial Toner Klairs Supple Preparation Toner Unscented Missha Time Revolution The First Treatment Essence Intensive [Moist] LEEGEEHAAM Grow Hyal B5 Ampoule e.l.f. Hydrating Water Essence 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 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 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 Frudia Citrus Brightening Serum Hada Labo Air Aqua Uv - Fresh Spf 50/ Pa+++ Smashbox Camera Ready Bb Cream Spf 35 Huxley Secret Of Sahara Cream; More Than Moist LEEGEEHAAM Hyal B5 Toner Missha Misa Cho Gong Jin Toner Muji Sunscreen Spf27 Pa++