Theses B-12 Deva Vegan Vitamins were jut okay in my opinion. They seem to have some amazing reviews but they just weren't my favorites. First off, they don't melt under my tongue like most other things that are meant to melt under the tongue. I find these just kind of sit under my tongue doing nothing until I'm forced to wiggle it around my mouth. After a few minutes I cave and bite it a little while trying to swish it back under my tongue. The whole thing dissolves in about 5 minutes and make my mouth feel odd. The taste is okay though, not anything too vitamin tasting but not so candy tasting that you run the risk of binging on it while craving a late night snack. I am not a true vegan so I believe I have okay B-12 levels, though I do try to eat mostly vegetarian I do include some dairy and meat weekly. I do not take these daily, but when I notice my energy has crashed for a little, I start taking these and do notice a difference. I'm not talking a "Pringle" difference as in as soon as you pop the fun don't stop or some "Redbull" induced energy surge that is Heart attack inducing...rather after a few DAYS, I feel better in comparison to the days before taking these. I do like the Deva brand and trust in the product itself, it's just I wish they melted faster. I was expecting something that melted on par to a homeopathic pellet. This one takes a bit more work but for the quality you can't beat the price online