October 1st is an important day in China, National Day, and the whole country celebrates this day every year. According to China’s statutory rest regulations, we will be on holiday from Octob...
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...
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...
Nonivamide, with CAS 2444-46-4, has the English name Capsaicin and the chemical name N-(4-hydroxy-3-methoxybenzyl) nonylamide. The molecular formula of capsaicin is C₁₇H₂₇NO₃, and its molecular wei...
Sodium isethionate (Chemical name: Sodium 2-hydroxyethanesulfonate) , with the unique chemical substance identification number CAS 1562-00-1, is a structurally stable and mild organic sulfonate com...