Like any other respectable artist I use the best materials to my knowledge and this is why as dry powder pigments I use Eye Candy pigments.

They are safe and non-toxic, cruelty free yet ultra fine purity, come in a wide variety of colors and mix well in resin.

And if you use this link https://www.eyecandycustomzus.com/?Click=141  and coupon AnaHefco15 you will get a 15%OFF at your check-out on any purchase on their website.