According to Sekkisei's webpage:
A foaming powder wash that effectively brightens the complexion with each use, while restoring skin’s natural moisture barrier and preventing inflammation.
On a wet palm, place powder about the size of a quarter. Using lukewarm water, work into lather. Wash face and rinse well.
Herbal Extracts: Peony Root Extract, Perilla Extract, Coix Seed Extract, Angelica Extract
This is my all time favorite summer facial cleanser, and true to its word, it does brighten your face with each use. I think because it comes in a powder form, it does slightly exfoliate your skin with each wash.
This is only my summer favorite because after I wash my face it does feel a bit dry, but since my skin is sort of oily during summer, this is a great product.