I have purchased this item both in bulk form from another on-line retailer for use in breakfast shakes and have used these caps from Swanson. I have found both forms to be great energy boosters. In bulk form it adds a kind of peanutty flavor to the shake. The caps are easier for when your on the road or when you have that after lunch dip in the metal alertness. I agree with the others that it does not have any of the side affects of the typical energy drink or mini-shots(5 Hour etc.), which I avoid entirely now.BUYER WARNING! Do certainly be CAREFUL of your SELLER/SHIPPER when you are buying Swanson products. If it doesn't say it is being sold/shipped by Swanson you may not be able to expect the same integrity when it comes to calculating the shipping charges. Notice that when you click on "Add To Cart" it tells you that there is an additional shipping charge ($4.99 at the time of this review). I ordered 12 Swanson products. 10 were sold/shipped by Swanson. I ordered 2 bottles of 1 product which was sold/shipped by DrugStoreLiquidator. The 10 items sold by Swanson were shipped for a combined total of $4.99 as they have been on all my past Swanson orders. The 2 bottles of Swanson products sold via DrugStoreLiquidator shipped for $10.98. Yeah, cancel please!For comparison, I had a stainless steel muffler for my truck shipped halfway across the country in a huge box stuffed with padding and that cost less to ship than they were going to charge for mailing two small bottles of dried herbage. Shameful! Unfortunately since I caught this scam before it shipped and cancelled the order I cannot rate the seller.