They have a great product They have a great product, fast shipping, and I always get a personal handwritten thank you note! What’s not to like? Good people!

Make any beverage caffeinated with… Make any beverage caffeinated with complete control over dosage! Inexpensive and very effective. I've been adding caffeine to my afternoon protein shake instead of having a second drink/coffee. 10/10

I got a brain injury kaffn8 helps symptoms I got a brain injury permanent brain damage, reactive gliosis as a result of this concussion so I suffer with headaches daily, and cognitive issues so I was given Ritalin, but I don't like Ritalin, so I began looking for jolt energy cola for caffeine but jolt is no longer for sale and searched for caffeine and found kaffn8 and I put it in my coca cola and it taste like jolt cola and get the caffeine I need. I no longer need Ritalin thanks to kaffn8,. Please don't stop selling this product. Because of your product kaffn8, it allows for a natural healthier way to deal with post tbi concussion syndrome symptoms instead of Ritalin a narcotic

I have tested a few different products I have tested a few different products. Some just added too much bitterness, and those where the taste was great were rather expensive. After testing Kaffn8 I knew that I found the product: neutral taste and a great price. In addition, it was a nice gesture to see a handwritten note on the invoice that came with the delivery.

I've ordered Kaffin8 many times over… I've ordered Kaffin8 many times over the past few years, and it always arrives in perfect shape within a few days.