Bests & Worsts Reviews from Amazon

I found that this formulation of Serrapeptase is effective for me in the same fashion as the "Dr.'s Best" variant, which I tried before and am currently trying again now. There are some key differences though: 1. It seems as this formulation is slightly weaker than the similar rated Dr. Best 120,000 SPU's. To get the equivalent effect I had to use 3 pills. (but the Source bottle calls for 2 pills for 120,000 units, which is equal to 1 Dr.'s Best pill of 120,000 SPU) 2. I had ZERO negative side effects at the 3 pill dosage- with Dr.'s Best I get stomach cramping & flatulence/gas. I get neither of those things with the Source Naturals, yet the positive benefits. (relief of minor arthritis & sinus drainage/reduction of inflammation and a general reduction of my allergy symptoms) So, while the cost is higher than Dr.'s Best to get the same benefits- it actually is worth it to me because of the zero negative side effects in my case.