6. Treat skin conditions.
Despite what we typically think, urine is not a waste product—in fact, it is about 95-98% water, with the remainder forming a combination of hormones, minerals, and salt. If you’re not too squeamish, you can treat acne, eczema, and psoriasis by dabbing on a little urine using a clean, damp towel and leaving it on for a few minutes before rinsing it off. Be sure to collect the urine using the “clean-catch method,” that is, beginning to urinate and collecting it mid-stream. Morning urine is thought to be best for face treatments because the hormones become more concentrated overnight.