Side effect: Yellow urine is normal as B complex is a water soluble vitamin – Superior Potency Vitamin B Complex: Our formula delivers all 8 essential B vitamins with vitamin C, folate, biotin, choline, inositol – Superior Quality: Pure Vitamin B Complex without the use of fillers or binders. All our ingredients are bought from suppliers that go through a very thorough audit process to ensure they can meet our higher standards – Premium Quality: Gluten Free, Non-GMO, GMP, Veggie caps, Third tested party, Purity & Potency Lab tested – Manufactured in a FDA registered facility in accordance with Good Manufacturing Practices (GMP) – As a dietary supplement take, one (1) capsule per day with a meal or as recommended by your healthcare practitioner