I was going to get the Jarrow Formula Methyl B12 (5000 mg) at the local health store but while at Costco I ran across the supplement aisle and I was surprised to find that now Kirkland Signature sells : B-12 Methyl (5,000 mcg) sublingual tabs (300 count). That's almost a years supply.

I know Jarrow is a very reputable brand but this Kirkland brand states that it is "USP Verified" for potency and ingredients.

Has anyone tried the Kirkland brand and would they be on-par with the quality & potency of Jarrow?