Cosmetics Formulation Development

from the product page Alpha Lipoic Acid (ALA) where the blending method is specified as: **infused in oil or Propylene Glycol or Emulsifier avoid overheating league 40 degrees** means that you should take Alpha Lipoic Acid (ALA) to dissolve in Propylene Glycol first and then add. Is it in the Essence formula? If yes, the ratio of Alpha Lipoic Acid (ALA) : Propylene Glycol should be how much thank you

Hello, ALA solubility. If you want to dissolve until clear, you may need to use Propylene Glycol in quantity not less than 10 times of ALA. or cream No need to dissolve until clear, use Glycol only 2-3 times of ALA to help dissolve, but ALA will be dispersed in the formula and absorbed into the skin.

Thanks for the answer on the ratio of Alpha Lipoic Acid (ALA) : Propylene Glycol . is to dissolve ALA in Propylene Glycol first, then add it to the formula, right?

Hello, if the purpose is to dissolve until clear, that's correct, but in the actual formula development Sometimes we don't want it to melt until clear. May be dissolved to some extent But it doesn't have to be perfect. It is well distributed in the formula. The skin can absorb it as well. (but at least partially thawed If not completely dissolved the skin will not be able to absorb it)