Pasty butt is a common occurrence among baby chicks that happens when poop builds up and dries around the chick's vent. The buildup can be fatal if not removed. It is important to check your chicks booty often to see if they need help removing this blockage. This is where we come in! Messy Mildred chick shampoo is created using organic, eco-friendly, plant based ingredients and contains no artificial colors or scents. Not only that but all of the ingredients are USDA Certified to organic food standards! It is gentle and safe and can even be used on other feathered friends like the ones that quack! So rest assured our formula is gentle for the little peeps.