Psyllium Husks 4,8 / 5 Independent Feedback based on 10 verified reviews. Alison Davidson 3 months ago. Keeps them safe from sand colic Georgina Owen 3 months ago. Worked well and my mare's droppings have returned to normal. We have recently moved to a yard where the soil is very sandy and she was showing signs of sand colic. Mrs Jackie Teggart 4 months ago. DIDN'T DO WHAT I THOUGHT IT WOULD, BUT THAT'S NOT YOUR FAULT Ms Jo Moore 4 months ago. Used it for years and only use the Feedmark psyllium. It works really well and gets rid of sand almost instantly - highly recommended Jo Kelleway 5 months ago. Does what it says on the tin Trusted Customer Website is easy to use, super quick delivery. The product is of a high quality and it works. Sarah Moorbey 9 months ago. Good quality and well packaged. The horses were happy to eat it too. Trusted Customer Brilliant and effective product Trusted Customer My daughters pony is on restricted grazing and we're on sandy land. She has psylium husks once a month to stop the risk of sand colic Trusted Customer Gives reassurance. All horse carers need to be more aware of the dangers of sand colic, even if they think the land isnâ€™t sandy.