I can definitely tell that liquid glucosamine reduces pain. I take it religiously. I have friends with hip and knee problems who feel the same way. In my case the hard pills never worked at all.
The brands I've seen have various concentrations of glucosamine HCl, glucosamine Sulfate, Chondrotin, MSM, shark cartlidge, Yucca powder... and other ingredients. W10-40 has
1250 mg GC
25 mg shark carlidge (chondrotin source)
and several other vitamins and minerals.
It really works for me even though it has no MSM and only a little chondrotin. I've seen other formulations with 2000/500/50 mgs of glucosamine/Chondrotin/MSM. I have no idea what the optimum ingredients and proportions are.
Jim
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