It works wonders for my old mini's heaves.

Order came earlier than expected, and was well packaged. Price is good vs other similar products. Unfortunately my horse will not consume it despite various ways I’ve tried to disguise it so I am not able to comment on the effectiveness

I tried Spirulina for my pony. She has goopy, runny eyes every summer and my vet put her on Cetirizine HCl, 10 pills am and pm. I didn't want to be giving her that again. We live in southwest Florida. This summer I tried the Spirulina and am very happy with the results. While she still wears a fly mask during the day, her eyes are no longer swollen and goopy. I will continue to use the Spirulina until our weather cools off.

Too messy! :(

Mad Barn Spirulina has helped my two horses with their skin issues related to allergies, bite reactions, and/or older more sensitive skin in the hot summer months. Truly, adding spirulina into their feed regimen cured their issues (after I had tried all the medical options). This is the second summer using spirulina and I will start them in earl spring again next season.

I fed one bag. Very messy,in this dry climate it sticks to you hand or measuring cup spreads easily on counter. I did not see a y difference in my horse.

I'm using this on a pony who has allergies and it's helping with his breathing. I also use allergy pills but he needed something extra to help with the dry dusty air.