Caffeine in Drinks

6 Hour Power

Discontinued? This item may no longer be available.

Stacker2 6 Hour Power is a popular energy shot made by NVE Pharaceuticals.

Flavors of 6 Hour Power

  1. Lemon Lime
  2. Very Berry
  3. Orange 
  4. Punch
  5. Grape.

All flavors are sugar free.

Note: Consumer Reports recently tested 6 Hour Power and found it to average 149mg per bottle, which is slightly higher than what the company reported to us.

There is also an Extra Strength Version of 6 Hour Power, however, the caffeine content is not listed, but we would estimate it at around 180-200mg.

Active Ingredients

Vitamin B-12, Folic Acid, B-6, B-3 and a unique energy blend containing Taurine, Malic Acid, Caffeine, and N-Acetyl, L-Tyrosine and L-Phenylalanine


This review was completed by an independent drink reviewer and does not necessarily reflect the views or beliefs of this site.

6-hour-powerHow do you get around strict caffeine content beverage laws?

Well, you call the product a dietary supplement and your sweet as to put as much caffeine in it as you want.

6 Hour Power is one of the many energy shots to be making their debut in the Southern Hemisphere and thanks to labeling laws they are required to disclose their caffeine content so that mystery is here by solved!

So is 6hr worth the $3.50 price tag and will it be the answer for all the caffeine junkies in New Zealand and Australia who struggle to get their daily fix?


I sampled the orange flavored 6hr and when I open the 60ml bottle, I was pleasantly surprised by the nice orange flavor. A lot of the shots that I've tried are like syrup and overdosed with sucralose. Not 6hr Power as it seemed just right. Now I hate artificial sweeteners, but with it only being 60ml it's doable.


Along with 125mg of caffeine 6hr has the usual suspects, but with an added enzyme blend of amylase, protease, lipase, and lactase. This shot is sweetened with aspartame.


Now I'm just an "Up and Comer" according to Dusty's Addiction Diagnosis Quiz, so I'm actually buzzing as I type...... I downed 6 hour power after already having two cups of coffee. Gee I feel good and I hope it lasts for six hours like the bottle promises.


Good on 6 Hour Power for having the initiative to jump in the energy product market in the Southern Hemisphere because it's ripe for the picking so to speak.  If you're looking for a no Calorie pick-me-up and don't mind spending over $3 for 60ml then give 6 hour Power a go.

Ingredients in 6 Hour Power

Other Ingredients: Filtered Water, Natural And Artificial Flavors, Potassium Sorbate & Sodium Benzoate (to Protect Freshness), Sucralose.

Is 6 Hour Power high in caffeine?

6 Hour Power contains 61.58 mg of caffeine per fl oz (208.21 mg per 100 ml). A 2.03 fl oz bottle has a total of 125 mg of caffeine.


Our Review and See other references.
Last updated on 7 Oct 2019. Suggestions or corrections? Send Feedback