I recently purchased 2 lbs. of MSM from a feed store that is for horses. Can a human take it too? It states that is is 99.8% pure and I did the test on it to see if it sunk and it did. It looks very similar to the MSM crystals I purchased from someone in Hawaii. Is it safe to take it if it is for a horse???
When I first took MSM, I bought it from the feed store for $20/lb, the cheapest supp I have ever bought. I got well from just 1/4 tsp a day so one lb lasted for quite a long time.