Polyethyleneimine (PEI for short), with a CAS number of 9002-98-6, is a water-soluble cationic polymer. Its core feature is that its molecular chain is rich in a large number of amino groups (prima...
Polyvinylpyrrolidone (PVP) ,cas number 9003-39-8,pvp is a non-ionic polymer that is the most distinctive, best-studied and most widely studied fine chemical among N-vinyl amide polymers. Has deve...
What is zinc pyrithione?
Zinc pyrithione (also known as 2-Mercaptopyridine N-Oxide Zinc Salt, zinc 2-pyridinethiol-1-oxide or ZPT) is known as a “coordination complex” of zinc and pyrit...
This summer, the sun exposure and high temperature came unexpectedly, walking on the road, many people sunscreen clothes, sunscreen hats, umbrellas, sunglasses.
Sun protection is a topic that can n...
In life, skin problems are common. Acne is a very common skin problem, but everyone’s acne problem is different. In my years of skin care experience, I summarized some causes and solutions of...
Polyethylenimine(PEI) is a water-soluble polymer. The concentration in water of commercial products is usually 20% to 50%. PEI is polymerized from ethylene imide monomer. It is a cationic polymer t...