First read the instructions on the packaging of toilet paper. Choose virgin wood pulp, and then measure its softness. If the packaging is transparent, look at the texture of the paper. Of course, the finer the paper, the softer it will be. To check the toughness of the paper, just press it lightly with your thumb to see if it will return to its original shape. If it does, it means the toughness is better and the paper will chip less. The most important thing is, never buy the exaggerated white ones. (No impurities at all) Toilet paper, the whiter it is, the more fluorescent agent it contains...