Dr. Mercola Methyl B12 Energy Boost Spray, 0.98 Fl. Oz. (29 mL), 39 Servings, 1,000 mcg Per Serving, Dietary Supplement, Supports Mental Focus, Non-GMO

pros, works fast, pleasant taste. dosage is 4 sprays, i take 2-3 in the morning. clearer thinking, better concentration, more alert, without getting " jittery " cons, once you open the bottle, effectiveness goes down within a month or so. i keep mine in the fridge - maybe it will last longer. been using this for several years, will continue to do so

Have bought this a second time, I’m noticing energy increase. I’ve been taking a record twice a day of my supplements along with my long walk activities, blood pressure, heart rate and weight. If I take this before my evening walk I can climb the stairs at the exit route easier. My records are showing this benefit.

I love this stuff. It tastes good and it gives me great energy throughout the day and I need my B vitamins anyway. It’s super simple and you just spray in your mouth and swallow.

The product is very quick to impact on the body. After research this one seemed the best although more expensive than other products but it is worth it

I really like this spray. However this isn’t the first time that it has leaked I had stopped using it because of leaking when traveling and the spray bottle not working. So I decided to start up again only to have the bottle leaked all over the packaging. So disappointed.