Dissolve alpha arbutin in water before adding it to other products.
Pure alpha arbutin comes in powdered form.
This powder must not be applied directly into a skin because it’s too potent and may cause a burning sensation.
In addition, it cannot be mixed directly into a skin care product without being dissolved first.
If it isn’t dissolved, the arbutin will just sit in the product like flaky chunks of powder and won’t spread evenly across your skin.