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And then I have another question: what if Pterostilbene is mixed? into the serum. The serum does not contain ethanol and Propylene Glycol , but the serum contains Butylene Glycol instead. Like this, Pterostilbene Will it be able to work?

If mixed with Pterostilbene into the serum by blending it to disperse into the serum, but there is no ethanol or Propylene Glycol in the serum. I would like to know what Pterostilbene Will it be able to work?

If in the formula put EGF 5%, if the concentration is in ppm, it means that in this formula there will be a concentration of EGF at 250 ppm or not, if not, how many ppm is correct?

I want to ask if Xylooligosaccharide Why is it called inci Fructooligosaccharide ?