To use alum for skin tightening, start by mixing a small amount of alum powder with water or rose water to form a smooth paste. Apply this paste evenly to your face or areas where you want firmer skin, avoiding sensitive areas like the eyes. Leave it on for about 10–15 minutes, during which you may feel a tightening sensation as the alum works to contract the skin and reduce pore size. Afterward, rinse thoroughly with lukewarm water and gently pat your skin dry. Since alum can be drying, always follow up with a moisturizer. For best results, use this treatment one to two times a week, and always perform a patch test before full application to check for any sensitivity or allergic reaction
