Cosmetics Formulation Development

Pure PPM Value Vitamin C (L-ascorbic acid) calculated from where, for example Pure Vitamin C 30,000 PPM Usually the PPM value claimed by some brands. What is it used to indicate? Thanks in advance for the answer.

Hello, PPM means part-per-million, which is 1 in a million, usually used. Measure the concentration of certain ingredients Used at a very low rate, if converting the ppm rate to %, it will be as follows: 1,000ppm = 0.1%, 10,000ppm = 1%, therefore 30,000ppm = 3%. Usually, if the concentration is from 10,000ppm or 1% or more, it is popular. Use % as a unit rather than reporting in ppm because the number is too big.

I'm confused. Thank you very much for the information ^^