Description
Never before has such a complete and effective endurance drink been available to athletes.
Perpetuem is a result of several years of research and thousands of miles of testing in a variety of endurance disciplines. Since its introduction in 2003, Perpetuem has allowed athletes to conquer the most extreme workouts and races with complete confidence! Perpetuem represents the ultimate, never-before-available link to satisfying the body’s fueling requirements no matter how long or difficult your exercise session or race.
- Carbohydrates – As with all Hammer Nutrition fuels, we never add simple sugars to the carbohydrate profile. Perpetuem contains a specific maltodextrin, which provides nearly 87% of its caloric composition in long chain carbohydrates.
- Protein – A calcium-enhanced soy protein isolate known as “XT” makes up nearly 10% of the caloric profile of Perpetuem, the same percentage that is cannibalized from muscle tissue during long, slow endurance workouts. This particular soy protein contains a very high amount of intact, cardiovascular-enhancing isoflavones.
- Fat – A de-oiled “super lecithin” (extracted from the soybean) is ideal for consistently and reliably fueling the body and maximizing energy production from stored fatty acids.
- Sweetener – Perpetuem contains Energy Smart®, the same healthy sweetener in Hammer Gel.






Sean –
Hammer Perpetuem has been my go-to product for every ultra-endurance distance event I have completed. I use the orange vanilla flavour and find that it mixes well with a shaker and the pleasant (not sweet or over-powering flavour) flavour is tolerable for the duration of ultra-endurance distance events (11h +). Not getting tired of the taste of what you are drinking is a game-changer in terms of performance. No cramps or stomach issues either.
Ryan (verified owner) –
Perpetuem provides me with the consistent energy levels I need, which, due to their gradual release, do not spike and fluctuate the way other sugary products I have trialled do. Im an ultra distance trail runner and I like to start with the chocolate flavour for the first half of a race up to 5 hours. In the back half When the body and mind begin to fatigue I switch to the cafe latte for that extra boost and focus.
Graham Seabrook (verified owner) –
I trained with and used solely Hammer products as a nutritional source for Ultraman Australia this year. Started each day with a caffeine gel 5 minutes before start. After that it was all Perpetuem. 10hrs day one, 11hrs day two and 9 1/2 hrs day three. Not to sweet. Not one stomach issue. Kept me going all day and I never tired of the taste. Absolutely perfect endurance fuel. Absolutely the best way to fuel for endurance events.
Carlos Trujillo (verified owner) –
I was introduced to Perpetuem by a friend who saw the amount of gels and other products I had for a long race. He recommended me Perpetuem, claiming I would only need a bottle with a couple of scoops. I was skeptical and had a race coming up in 1 week time. I didn’t have the chance to test the 2hrs + ride in the last week so I ordered a sample and decided to give it a go in the race (a bit risky since they say do not try something new, or practice it before)
The race lasted 2hrs and 35 mins, I only took with me 500ml of water mixed with 3 scoops of Perpetuem divided in 250ml reusable flaks and 1x 750ml bottle of plain water and 1 x 750ml of water with electrolytes.
I managed to perform really well, never felt hungry, it was nice to my stomach and my energy level was high at all times! As soon as I finished the race I ordered the big canister
Kristie –
The only thing that gets me through my long rides!
FILLIPP (verified owner) –
Perpetuem, I love it, no more sticky gels and mess. Plus it really works. I made a 4 hour bottle and 1 litre of heed. That lasted a 4 hour trail run. No bloating no energy lows and my concentration was laser focused. Afterwards I drank 500ml bottle with 2 scoops of recoverite. The Heed, Perpetuem and Recoverite kept me going for 8 hours.
Kevin (verified owner) –
I poured 1 serve (69g) of powder via a funnel into the hammer flask. I then poured water into the flask and shook vigorously! Took it on a ride of around 2 hours and sipped it with my water bottle. Worked really well and the taste was not sickly sweet at all. The consistency was probably slightly thinner than a gel. Unfortunately, on my second ride it fell out of my pouch and now I’ve lost the flask! Bugger! Hey Hammer… how about make a flask that clips onto the water bottle? You can thank me later for the idea !!!
Linda (verified owner) –
This is my new favourite flavour, orange vanilla. It’s not too strong. I used it for the bike leg of an Ironman. Keeps me well-fuelled. I make up a 4-6 hour bottle and take 100ml per hour. Works well. I have stomach issues but this works for me. I can go all day on perpetuem. I use it for trail running, tramping any endurance sport.
Glenn (verified owner) –
I use Perpetuem for my longer bike rides. For me 1.5 scoops per 500ml works well. Perpetuem doesn’t cause me any stomach issues and definitely keeps me going harder for longer. I add an Endurolytes Fizz Tablet/s with it which I find makes the flavour nicer and obviously gives the benefits of the Endurolytes Fizz.
Mathew Roberts (verified owner) –
I’ve been using perpetuem since around 2018. For long rides over 3hours i find this product keep me well fuelled, especially if i start consuming early into the ride. For races and the longer events, i manage the bottle over the longer period refilling throughout to make sure i have the required volume over the duration. very good product, no digestive issues. Highly recommended.
Mat (verified owner) –
I have used perpetuem (and espresso gels and fizz) since 2014 aftre a chance encounter with Brendan Davies (remember that guy). Its now 2025 and I have run about three (often many more) ultras a year, every year inlcuding this one. I think I just luckily hit the jackpot with something that works for me. Perpetuem feels like home. Its a signal to my body that we are in this for the long haul. I think Hammer have something that is unique in the market and that we will see people come back around to after the sugar calorie craze is debunked. Over four hours… you need more than sugar..and the longer you go the more important that becomes. Perpetuem can sustain me without additional food for a very long time.