feed it to my little bubby one, it seems really good he is very shiny. It costs £18.30ish i think, and it should last him 40 days as he is small, a horse you feed a little more to I'm not sure, maybe give them a ring?
Haven't tried it but thought about it for one of mine and asked spillers the same question.
This is the reply
Cool Concentrate retails at approximately £18.30 per bag, and comes in a 10kg sack. This should last a pony approximately 40 days, and a horse 20 days, if fed at the recommended ration.
So I actually thought it worked out quite expensive for what it was!
My 4 yr old is on it. He has 500 gramms a day. It comes in a 15 kg bag and is around £18 (though we got £5 off)
It is supposed to supply all the daily vitamins required which is useful when only feeding small quantities of food. I only tried it because he's young and still developing but is prone to putting on weight, so the theory is he's getting a balanced diet