If you have been researching lightening skincare products, you may have heard of the ingredient kojic acid. This is used to whiten skin, and it primarily works for dark spots and freckles. Here is an explanation of how kojic acid works and what you may want to know about using it. Where Does Kojic Acid Come from? Kojic acid was originally found in 1989 in mushrooms from Japan, but it has since been discovered in other substances, like the residue that comes from fermenting rice wine. Scientists have noted the acid in soy, rice, and ... Read More