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I'm just wondering here. is that the recommended rate is to be a % suitable for the skin Or something good for absorbing the skin like this? Like Madecassoside should use 0.2-2%. But I recommend 1% means that this 1% is good for the skin or will it work the best or is there another reason?

When placing an order, there is a recommended usage rate. This is recommended as a % that the active ingredient and is good like this? Just go and read a sample research paper. ใบบัวบก is usually used about 5% to say that it works well but in the market. You recommend 1%, so I'm not sure if using th...

And the recommended 1% to use is the best percentage, right? I mean, which one is good that penetrates through the skin well and has good stability?

Please give me some answers. 1. Saying that the concentration is ultra high ( Madecassoside 80%) means that if selected Use the substance at a rate of 1%, there will be Madecassoside in 80% recipe? Usually, if you go to notify, the name of the ingredient is Centella Asiatica Extract or Madecassoside ?