1. Oyster shell will be an effective alternative stain remover if further developed. 2. Pounded oyster shell has calcium carbonate. Calcium carbonate or chalk is one of the components of the detergent. .3. This will be ideal for promoting the care for our environment since it doesn’t have any harmful effects to plants and other organisms. 4. Soaking the stained cloth in distilled water with pounded oyster shell will remove its stain. Significance of the study This study aims to provide a health an eco-friendly stain remover since all commercially available stain removers react with organic material to trinalomethanes like chloroform which is well-known carcinogen. It is also conducted to test which stain remover could off set a stain well….