Hello, it can be done, but it's not easy, you need to see
Calendula officinalis extract 0.9% how does it affect the physical effect of the formula? Usually, substances extracted from
Calendula usually has a color (yellow or red because it has a Lutein group), so this will overload the formula. How to make Placebo look the same May be a dark color so that it can't be seen that Which one has Lutein's color?