★★★★★
I, too, took Apple Cider Vinegar for months (years, really) but saw no impact with my arthritis. Now I take 4 mg Astaxanthin twice a day and no pain. I also take serrapeptase whenever I get any sort of pain (migraine, muscle ache, etc) and it clears it up. I took serrapeptase for a twisted knee and, after a month, no more pain--from last summer and still fine.