Cleanliness is an important part of Islam, including Quranic verses that teach how to achieve ritual cleanliness, keeping oral hygiene through the use of a form of toothbrush known as miswak. Ritual ablution can be observed by the practices of wudu, ghusl, and tayammum (water-free alternative using any natural surface such as rock, sand, or dust).
Leaving hair and nails is permissible after 15 days and disliked after 40 days. The best day for removing needless hair and cutting nails is Friday. It is permissible to use shaving cream to remove needless hair. Needless hair and nails should be buried to prevent illnesses from spreading. Cutting eyebrows is permissible if they are too long.
Islam more than anything promotes cleanliness and hygiene. It is good to practice all the forms of hygiene as it brings one closer to Allah.
