Decoden, where do I begin. I have seen my friend decorate her photo case decoden style, but I never knew what it was called. Now I do LOL. Decoden originates from Japan, like all things kaiwaiiiiii, no surprise there. I personally have never tried it, so let’s give it a shot. The opportunity presented itself when Etude House sent us their BB cushion decoden kit in their June pink bird box, so I said why not! I’m personally not a super duper girly girl, but I’ll give it a shot.