The Konjac Sponge, buy or not to buy?

So for a long time the konjac sponges came in many brands as a new best and trendy item. But what is it actually? Konjac, botanical name Amorphophallus Konjac, also written as Konjak, is a plant that occurs naturally in countries such as Japan, China, Korea, Taiwan, and Indonesia. In China and Japan, the plant …