Polyquaternium-51

Polyquaternium-51 (CAS 125275-25-4) is a phospholipid-based cationic polymer designed to mimic the moisture-retention behavior of cell membranes.

Where is Polyquaternium-51 used?

• Skincare and facial care: biomimetic film that binds moisture and reduces transepidermal water loss without occlusion
• Hair care: conditioners and leave-on treatments that improve wet combability
• Ophthalmic formulations: contact lens solutions and eye drops
• In pharmaceutical topical preparations it functions as a rheology modifier and surface conditioner.

Commercial specifications

• Aqueous solution with active polymer content typically 30% to 50% depending on grade
• Standard commercial grades: PMB and Purebright product lines
• Cosmetic and pharmaceutical quality
• Packaging in drums or intermediate bulk containers