Although this vitamin recommends using sublingually (dissolving under the tongue), it can also be swallowed. If you can get past the bitterness(somewhat similar to aspirin), it is best utilized under the tongue. With that said, I myself prefer to swallow this product. I use it daily and take additional servings right after running as part of my recovery. I need a product to work fast, and feel this one does. I have recommended, and my senior mother takes the vitamin B12 from this company. This product does not have a slippery coating, so swallowing is a little slower, but the tablets are small. I prefer supplements with as few fillers /excipients as possible and feel this one fits the bill.