During summer I often use products with niacinamide and arbutin because I like to keep sun spots at bay. Normally I buy toners and serums with niacinamide and arbutin but sometimes I want to try different products that don't have arbutin in it. So I thought that this powder could be a good solution to that problem. I've tried blending it with creams, emulsions, serums, etc. and it's not as convenient as a product that is ready to go. But I still like it because it adds the lightening aspect to normal products.