Easy to use
I love that I can add it to whatever I am drinking since I don't really like coffee, but caffeine taken with other supplements make them more bioavailable. I also love that I can add it to topical applications for my skin!
By Shairise B.
Saturday, November 7, 2026 · Customer reviews of US businesses
The Fair Hearing score
Excellent
156 reviews
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Honesty, pricing, process and quality scores appear once 5 customers have rated them.
Liquid Caffeine is your source for highly concentrated caffeine. Add it to any drink to make it an energy drink! Dispense a safe portion into your drink with the provided pump. Cut the sugar and chemicals out of your caffeine intake with Liquid Caffeine. Traveling get our packets. Each packet contains 80mg of caffeine and is great for when you are on a trip.
Liquid Caffeine (liquidcaffeine.com) has 156 customer reviews on The Fair Hearing, with an average rating of 4.8 out of 5.
156 approved reviews, newest moderated first
I love that I can add it to whatever I am drinking since I don't really like coffee, but caffeine taken with other supplements make them more bioavailable. I also love that I can add it to topical applications for my skin!
By Shairise B.
I’m doing carnivore so I’m using this instead of coffee.
By Tom R.
Quick delivery
By Daniel M.
Amazing product! The 'sweet is made with stevia too!
By Charlyn
Great product! Very versatile. Freedom to caffeinate whichever drink you like! Add this to my morning shake and 💥. It’s on!
By Chris C.
Cut out the middle man and use liquid caffeine in all your healthy drinks. No need to buy all these chemically laced energy drinks when most of the time the real ingredient is lots of caffeine. save your kidneys the stress and get the only thing you need. I put it in teas or juices or anything that has a some flavor to tune out the bitterness which is inherit with caffeine.
By mark
I have been purchasing from Liquid Caffeine for many years and they have always provided quality products and service. In the very rare instance that an order isn't quite right, they are quick to respond and remedy the issue.
By Michael
Excellent caffeine product. The service is efficient and prompt. The shipping is good, there is no product loss. The pump gets almost the last drop of the liquid.
By JN