I used MSM from another supplier before I found out about MISMO. I was glad I switched as I believe MISMO MSM to be a purer grade product. However, I have to restrict my usage as MSM prices are never discounted even for long time regular customers. When I use MISMO MSM, I get better benefits for joints and active muscle recovery after exercise than I do from other suppliers. I wish I could afford to use it more regularly and liberally. May be MISMO MSM will go back to offering discount rates for MISMO MSM to regular customers in the near future again.