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...
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) chemical structure contains a pyrrolidone ring, which imparts excellent water solubility, film-forming ability, adhesion, and biocompatibility.
The “K25″ in P...
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...
Glyoxylic acid CAS 298-12-4, has a molecular formula of C₂H₂O₃ and a molecular weight of 74.04. Its aqueous solution is a colorless transparent liquid, slightly soluble in ethanol, ether and benzen...
For effective skin care, of course, it is inevitable to have a certain concept of ingredients, not only the promotion of the product, but also the ingredients of the product. Today, let’s tal...