Remove Dead Skin Cells: Since sponge is made of circular hole
"structure, different from the usual linear fiber structure, it can more"
efficiently remove dead skin cells to promote regeneration of new skin cells
from beneath. Sponge's effectiveness in this regard varies with the size of
"its openings. Take Siva's #9000 (Health Sponge) for example, after three"
"weeks of using it once every three days, improvement of skin texture on"
hands and other parts of the body can already be observed
After burying , this product itself decomposes gradually( biodegradable). No harmful component and heavy metal included.