Buying Kaffen8 was easy. Buying Kaffen8 was easy. I really find taking the liquid caffeine is very do able and does it's job to give me energy when I need it. The thing that I feel is lacking on the site is that they don't tell a person where they get the caffeine from, and whether it's been tested for toxins

Good productp Product arrived quickly. It is easy to use. The container makes accurate measurement easy. Good quality.

good job ordering from their website was seamless. arrival of product was good. It arrived in padded envelope, despite the bottle is plastic, seems it leaves vulnerability for puncture. a small box would have have been preferred. Overall though, experience was good.

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

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