What Color is Your Pee?, While this demonstration isnt perfect and it can vary, the overall colors used are meant to point you in the right direction., Most people think having clear pee is Glutathione Antioxidant that supports detoxification, immune health, and brighter skin. The 7 Colors of Urine and Their Associated Health Indicators Vitamin B supplements, especially those containing riboflavin (vitamin B2), often cause bright yellow or neon colored urine. This happens because excess riboflavin is water soluble and is excreted through urine when the body has Bright yellow urine: Colors, changes, and causes