gemthepax ive used for years its really good for the gut and i find the ybs are alot better in the nest like u said the feathering is good and also it keeps the droppings good i will say i tryed the g10 pelletts which contain this product and found they wernt as good so reverted back to the bottled one its also a good probiotic as well so i use this after medication in racing season alternity tho