Kaffn8 Reviews 1,349

I wanted to give an updated review as of 4/2025. I have been purchasing Kaffn8 now since 9/2020. Five years of ordering and I'm still satisfied. I always buy in large quantities, because... See more

Kaffn8 is a game changer for me. It is extremely well priced: no tax, free shipping, AND a handwritten thank you note (which, imo, actually goes a long way in terms of service). I prefer unflavo... See more

Ordering was simple, shipment time was short and product arrived with literature and a handwritten note (nice!). The product works, you can take your favorite non-caffeinated beverage and add some fo... See more

I love Kaffn8! As a mom who works full time and is also a full-time student, I get tired around 3pm, and feel drained by 8pm. So I use a little Kaffn8 in most of my drinks throughout the day, includin... See more

Great has no taste. Low amount of caffeine for the price. Switching back to my other supplement with caffeine it's way more cost effective. I really wish this product was cheaper or more concentrate... See more

Deliveries are prompt, never damaged, AND they include a personal, hand written thank you!!!!! Who cares that much to do that?!?! Also, the product gives me that non-coffee tasting caffeine boost i... See more

Order came super fast and packaged great. Plus, with sweet hand-written note from owners! The directions sheet was very helpful as well. Great product and quick, customer service and delivery! Will de... See more

I just worked 5 nights (12 hour shifts) in a row and Kaffn-8 got me through it. Panera charged lemonades used to be my go to for caffeine for my work shifts; but, they recently stopped selling them d... See more

I have been looking for a new option for my morning wake up caffeine dose, since I quit diet cola for health reasons. I don’t like coffee, tea or energy drinks. The back story for Kaffn8 was very appl... See more

I much prefer to get my caffeine without having to resort to soda or flavored drinks that may not be safe. I add a bit to my water or tea, giving me that little boost of energy without going overboar... See more

It definitely does the job. Wish I had of ordered a larger amount, but for the first order, I'm very impressed. I've been trying to find a way to separate myself from the energy drinks and save money... See more

I wanted to get off the overly sweet, energy drinks. They were also very confusing as to contents and total caffeine content. I needed a caffiene boost, but not all the extra stuff. Kaffn8 is so sim... See more

I love unsweetened energy drinks first thing in the morning. There are very few on the market. The ones I could get are off the market. Every other one has some sort of sweetener or another. I dec... See more

I like the product but it was leaking inside the package when delivered. I emailed kaffn8 admin 3 days ago but have not yet had a response. UPDATE-from 3 stars to 5. I received a reply and am ge... See more

I've ordered from Kaffn8 many times, and my order always arrives within 3-4 days. I use a little in my morning juice, which helps me stay awake since I don't drink tea or coffee.

The order came in very quickly and was as described. The order came with a personal, hand written letter of thanks. To me, that says something about the company. They will be my supplier of liquid caf... See more

I've been using the product to make caffeinated salsa and selling it. The reviews are great and couldn't have done it without testing with kaffn8 first. Highly recommend

I decided to try this to mix in drinks to replace the half of a Charged Lemonade I was drinking every day. After 2 months, I'm ordering more as this product is amazing! Easy to measure and add to drin... See more

I get my product quickly and it is very effective, I love the whole experience! I like getting to choose what drinks are caffeinated, and I like that I never have to have coffee or soda!

Great product with great shipping. The package (bottle) was off putting to the people in my circle. They said it looked like a bottle of chemicals (poison) that should not be consumed. I didn't min... See more

Great product and saves me money making my own drinks. Also healthier because I know what I'm drinking. Been buying for years now and love the personal touch.

I love this stuff! Perfect before a morning workout when you don't want to have coffee. Always arrives fast after ordering.

I am so happy to find a product that is tasteless when added to water but gives me the caffeine I need. I am avoiding all the additives in soda and flavored waters.

We will definitely be repeat customers - it's been a convenient way to add caffeine to our juices, sparkling water, electrolyte mixes - anything! Thank you!

Great product and excellent customer service! I’ve gotten away from drinking red bull and energy drinks because of this.

Customer service is very responsive at resolving issues. I have been using this company for about four years and I have no complaints with the business.

This product is a great idea, I like it! Took a minute to understand the innovative packaging, once I did, I appreciate how smart the design is.

I love it that I don't have to consume sugary drinks to get a measure of caffeine. I can add the desired dosage depending on events or time of day.

Lightening fast shipping, well packaged; no leaks. Now I can make my own caffeinated beverages!

The service was excellent. I received my product faster than I thought. The folks are very appreciative of the business.

Promptly filling my orders consistently and this shipment each bottle was bagged to contain leakage that has occurred with other shipments.

The Kaffn8 team is quick to fil orders and the order is always correct...and of course the product is great for non-coffee drinkers!

I really like the handwritten note on the receipt. Also, they acknowledged that I had purchased before and thanked me. It's a nice touch.

Always an A+++ experience. The personal "thank you" for my repeat business from Susan is always a pleasure to read.

I like the bottle's design. It allows you to measure the amount you want. My experience with the product has been positive.

very clean awake feeling as opposed to multiple different kinds of energy shot

Fast and efficient ordering and delivery. Does not hinder flavor of anything I put it in! Highly recommended.

Easy to order and very easy to use. If you want the boost, but not all the extra additives you find in the over sweetened energy drinks, use Kaffn8! And try it with a lil lime.

Simple to use, easy measuring bottle, and works for any beverage. Ordering is easy and product comes fast.

I bought this for my 7 year old who has ADHD. Doc suggested a little caffeine might help him focus. I wanted to add it to water with a little lemon so we could avoid artificial sweeteners and sugar bu... See more

It doesn’t taste bad but it isn’t tasteless. It also doesn’t seem to give the kick of energy I’ve come to experience from caffeine. Like I said it’s not bad but I was expecting more from “pure” caffe... See more

I gave an initial negative review, but was subsequently contacted by the folks at Kaffn8, who traced the problems with the order and straightened it out. So I’m revising my review upward, and f... See more

Kaffn8 is a terrific product, however I would love to see the existing tamper-proof seal under the cap changed to one that is removable in one piece and does not tear into pieces risking contaminati... See more

Great purchase process and experience on site. I had a questions and the actual product developer responded quickly. I would have given it 5 starts if it wasn't because the order-to-ship time was 3 or... See more

I would have liked to receive notice that my order had been received earlier. The only way I knew that the order had been successful was when the charge showed up on my credit card. That being said, I... See more

The product is fine.... Being used to caffeinate haircare products with no issues. My issues is with shipping.... Who ships liquids in an envelope? Through USPS no less..... Couldn't track the... See more

I LOVED Kaffin8!!! This product worked as stated. There was a slight "sharp" aftertaste that was easily masked by any nondairy additive. Great pre-workout, great morning shake additional.

Great product but I worried that if I wasn't careful, more caffeine from the main container could siphon to the measuring container when I am pouring, which could be very dangerous!

Everything shipped quickly, and was high quality. The measurement and storage instructions are clear. My package was delayed en route, but by USPS, not Kaffin8.

I'm very pleased with this product. I like adding it to a cold tea concentrate and then adding carbonated water.