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Have a question about which product you should use for your fueling needs? Please click the following link.
Should I use Perpetuem or Sustained Energy?
Perpetuem is available in the following delicious flavors: Caffé Latte, Strawberry-Vanilla, Orange-Vanilla, and Unflavored.
Welcome to the world's finest endurance fuel specifically formulated for multi-hour to multi-day events. No matter how long or extreme your exercise regimen or races may be, Perpetuem is always up to the task. Thoroughly tested and proven in the world's toughest endurance events, Perpetuem's unique formula—complex carbohydrates, GMO-free soy protein, healthy fats, and key auxiliary nutrients such as sodium phosphate—is unsurpassed for maintaining optimal athletic performance for as long as you want. Perpetuem provides consistent, reliable energy, maximizes stored fat utilization, and buffers lactic acid to prevent muscle fatigue. On the road or trail, Perpetuem is the breakfast, lunch, and dinner of champions!
Extra Benefits:
Carnosine, one of the ingredients in Perpetuem (it's also in HEED, Sustained Energy, and Recoverite), is both a performance aid (a superb lactic acid buffer) and a premium general health nutrient (multiple free-radical scavenging and anti-glycation antioxidant).
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.
The HAMMER AUTOSHIP Program offers the ultimate in convenience and VIP treatment with scheduled shipments and discounted pricing.
View 2013 Autoship Program Price List

Call 800.336.1977 to have one of our friendly client advisors help you select the correct Hammer Nutrition fuels and supplements to meet your needs and goals. We then ship your products every 90 days (free ground shipping!) without you ever having to pick up the phone again.
An advisor will also call or email you approximately ten days before your scheduled ship date to see if you'd like to add anything to your order to take further advantage of free shipping and discounted pricing.
Receive a free Hammer Nutrition clothing kit with your first order! Select one of our sport-specific kits: cycling jersey and shorts, tri jersey and shorts, running top and shorts, or swimwear with a swimcap and a large towel. Ask a Client Advisor for more information.
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*Sorry, international clients are not eligible for this program; only valid for U.S. residents.
*If you cancel the autoship program before taking delivery of four consecutive quarterly shipments, we will bill your credit card for the retail cost of the free clothing kit. If you discontinue the program and rejoin within one year, you are not eligible for more free clothing until your fourth consecutive shipment after resuming. Aside from these stipulations, you are free to cancel your participation in this program at any time. Quarterly shipment must total at least $150 each. Cannot be combined with other offers.
Use as a primary source of calories during exercise/competition lasting more than two hours.
Serving Size
One scoop of Perpetuem contains 135 calories.
Suggested Doses by Body Weight
| WEIGHT | SCOOPS | CALORIES |
| Up to 120 lbs (Up to 54.5 kg) |
Up to .75 scoop/hr | Approx 101 calories |
| 120-155 lbs (54.5-70 kg) |
1 scoop/hr | 135 calories |
| 155-190 lbs (70-86 kg) |
1.25-1.5 scoops/hr | 169-202.5 calories |
| 190+ lbs (86+ kg) |
Up to 2 scoops/hr | 270 calories |
*These are estimated doses. Each athlete should determine in training, under a variety of conditions, their personal optimum.
Mixing / Usage Instructions
IMPORTANT NOTE: Due to potential spoilage issues, Perpetuem cannot be premixed and left for several hours in warm weather. Please read the FAQs on pages 42-43 for more detailed information on this important topic.
You can mix and consume Perpetuem three different ways depending on individual preference and logistical concerns. Please experiment with the following options to determine which works best for you.
The One-Hour Bottle - Mix the suggested amount of Perpetuem for your body weight (see chart above) in 16-28 ounces (approx 475-830 ml) of water. Consume one bottle hourly. This method is ideal when training or racing with a support crew and vehicle. If youre without a support crew, but still want to use this option for mixing, keep in mind that its obviously less convenient as youll have to stop more frequently to mix your fuel. Also, because you are trying to fulfill both hydration and caloric requirements from one source, you have limited ability to adjust one without affecting the other; you may need to consume additional water to satisfy hydration requirements.
The Multi-Hour Bottle - This is by far the most convenient method of fueling because it allows you to be self-sufficient for many hours, requiring only additional plain water along the way. The only limitation is how many scoops you can fit into a bottle. Determine your proper hourly intake of scoops by experimenting with the numbers from the dosage chart. Lets say youve determined through testing that two scoops of Perpetuem per hour is your ideal caloric intake. For a 4-hour workout, youll need eight scoops in a bottle, filled with water and shaken. You may need to add a few scoops at a time to get it all to mix well. You then nurse this bottle, taking small sips every 15-20 minutes. At this concentration, the water in the mixed bottle does not contribute much at all to your hourly fluid intake needs. To meet your fluid requirements, carry a second and possibly even a third bottle of plain water, use a hydration system, or know where you can refill along your route. Drink according to the temperature/humidity and your exertion level so that you consume in the range of 16-28 ounces (approx 475-830 ml) of plain water per hour. This way, as long as you can obtain water along the way, youre set for hours of hard training.
Gel or Paste - If you want to carry the highest volume of calories in the least amount of space, making a thick mix is your best option. Perpetuem can be made into a super-concentrated, near paste-like consistency and dispensed from a Hammer Gel Flask. Using a blender or bowl and spoon, mix scoops of powder with a small amount of water, gradually adding water as necessary to create the desired consistency. If youre using one of the flavored Perpetuems, remember that the heavier and more concentrated you mix it,
the sweeter and stronger the flavor will become. You can also add Hammer Gel or HEED for flavor, if desired. Depending on how many scoops per hour you require, and how concentrated the mix is, each flask of Perpetuem can supply you with 2-4 hours of fuel. As with the multi-hour bottle, you must carry additional bottles of plain water or use a hydration system to meet your fluid requirements.
Special Note on Perpetuem: Perpetuem is a high concentration calorie source (via its complex carbohydrate, soy protein, and healthy fat components); therefore we have noted that many athletes do well with a substantially lower calorie intake when using Perpetuem as their primary-to-sole fuel. With this particular fuel we highly recommend starting with the lowest amount suggested-perhaps even a bit lower and work your way up to a higher amount, if a higher amount proves to be necessary via testing in training.
Important information:
By design, neither Perpetuem nor Sustained Energy contain artificial preservatives. Preservatives provide absolutely no benefits for athletic performance or general health—we consider them health hazards, in fact, which is why we do not include them in either of these products, or any of the Hammer Nutrition fuels. As a result of this, however, once mixed into solution, the protein component in both Perpetuem and Sustained Energy is affected in the following ways:
We believe that not having artificial preservatives in our products is far more important than these two inconveniences; however, they are factors that you need to consider when using Perpetuem or Sustained Energy.
With that in mind, here are some questions we frequently receive:
FAQs
Q: How soon after I make Perpetuem or Sustained Energy do I have to drink it?
Q: If I mix Perpetuem or Sustained Energy and keep it in the refrigerator, will it break down any of the desired properties?
Q: I'm doing a full iron-distance triathlon, and the weather is going to be hot. I want to use Perpetuem for the bike portion. How do you suggest I mix it so that it doesn't get warm and unpalatable?
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Perpetuem Caffé Latte Supplement Facts |
||
|---|---|---|
| Serving
Size: 69 g (Approx 2 Level Scoops) 2 Level Scoops: 106.0 cc = 7.2 Tbsp = 21.5 tsp |
||
| Amount Per Serving | % Daily Value | |
| Calories | 270 | |
| Calories from Fat | 20 | |
| Total Fat | 2.5 g | 4%* |
| Saturated Fat | 0.5 g | 3%* |
| Total Carbohydrate | 54 g | 18%* |
| Sugars | 7 g | † |
| Protein | 7 g | 14%* |
| Calcium | 36 mg | 4% |
| Iron | 2 mg | 9% |
| Phosphorus | 211 mg | 21% |
| Magnesium | 8 mg | 2% |
| Manganese | 1 mg | 55% |
| Chromium | 110 mcg | 92% |
| Sodium | 220 mg | 9% |
| Potassium | 120 mg | 3% |
| Choline Bitartrate 50 mg | † | |
| L-Carnitine 50 mg | † | |
| L-Carnosine 100 mg | † | |
| Caffeine 25 mg | † | |
| *Percent Daily Values are based on a 2,000 calorie diet. | ||
| †Daily Value not established | ||
| Ingredients: Maltodextrin, Soy Protein Isolates, Energy Smart® (fruit juice, natural grain dextrin), Soy Lecithin, Coffee Powder, Natural Vanilla Flavor, Trisodium Phosphate, L-Carnosine, L-Carnitine (as Carnipure), Choline Bitartrate, Caffeine, Stevia, Chromium Polynicotinate. | ||
| Contains: Soy. | ||
| This product is processed in a facility that also processes Dairy & Soy products. | ||
|
Perpetuem Orange-Vanilla Supplement Facts |
||
|---|---|---|
| Serving
Size: 69 g (Approx 2 Level Scoops) 2 Level Scoops: 106.0 cc = 7.2 Tbsp = 21.5 tsp |
||
| Amount Per Serving | % Daily Value | |
| Calories | 270 | |
| Calories from Fat | 20 | |
| Total Fat | 2.5 g | 4%* |
| Saturated Fat | 0.5 g | 3%* |
| Total Carbohydrate | 54 g | 18%* |
| Sugars | 7 g | † |
| Protein | 7 g | 14%* |
| Calcium | 35 mg | 4% |
| Iron | 1 mg | 8% |
| Phosphorus | 212 mg | 21% |
| Magnesium | 8 mg | 2% |
| Manganese | 1 mg | 55% |
| Chromium | 110 mcg | 92% |
| Sodium | 220 mg | 9% |
| Potassium | 75 mg | 2% |
| Choline Bitartrate 50 mg | † | |
| L-Carnitine 50 mg | † | |
| L-Carnosine 100 mg | † | |
| *Percent Daily Values are based on a 2,000 calorie diet. | ||
| †Daily Value not established | ||
| Ingredients: Maltodextrin, Soy Protein Isolate, Energy Smart® (fruit juice, natural grain dextrin), Soy Lecithin, Natural Flavor, Trisodium Phosphate, L-Carnosine, L-Carnitine (as Carnipure), Choline Bitartrate, Chromium Polynicotinate. | ||
| Contains: Soy. | ||
| This product is processed in a facility that also processes Dairy & Soy products. | ||
|
Perpetuem Strawberry-Vanilla Supplement Facts |
||
|---|---|---|
| Serving
Size: 69 g (Approx 2 Level Scoops) 2 Level Scoops: 106.0 cc = 7.2 Tbsp = 21.5 tsp |
||
| Amount Per Serving | % Daily Value | |
| Calories | 270 | |
| Calories from Fat | 20 | |
| Total Fat | 2 g | 3%* |
| Saturated Fat | 0.5 g | 3%* |
| Total Carbohydrate | 54 g | 18%* |
| Sugars | 9 g | † |
| Protein | 6 g | 12%* |
| Calcium | 34 mg | 3% |
| Iron | 2 mg | 9% |
| Phosphorus | 206 mg | 21% |
| Magnesium | 8 mg | 2% |
| Manganese | 1 mg | 52% |
| Chromium | 110 mcg | 92% |
| Sodium | 210 mg | 9% |
| Potassium | 75 mg | 2% |
| Choline Bitartrate 50 mg | † | |
| L-Carnitine 50 mg | † | |
| L-Carnosine 100 mg | † | |
| *Percent Daily Values are based on a 2,000 calorie diet. | ||
| †Daily Value not established | ||
| Ingredients: Maltodextrin, Soy Protein Isolates, Energy Smart® (fruit juice, natural grain dextrin), Soy Lecithin, Natural Flavor, Trisodium Phosphate, L-Carnosine, Red Beet Juice Powder, L-Carnitine (as Carnipure), Choline Bitartrate, Chromium Polynicotinate. |
||
| Contains: Soy. | ||
| This product is processed in a facility that also processes Dairy & Soy products. | ||
|
Perpetuem Unflavored Supplement Facts |
||
|---|---|---|
| Serving
Size: 69 g (Approx 2 Level Scoops) 2 Level Scoops: 106.0 cc = 7.2 Tbsp = 21.5 tsp |
||
| Amount Per Serving | % Daily Value | |
| Calories | 270 | |
| Calories from Fat | 20 | |
| Total Fat | 2.5 g | 4%* |
| Saturated Fat | 0.5 g | 3%* |
| Total Carbohydrate | 54 g | 18%* |
| Sugars | 7 g | † |
| Protein | 7 g | 14%* |
| Calcium | 35 mg | 4% |
| Iron | 1 mg | 8% |
| Phosphorus | 211 mg | 21% |
| Magnesium | 8 mg | 2% |
| Manganese | 1 mg | 55% |
| Chromium | 110 mcg | 92% |
| Sodium | 220 mg | 9% |
| Potassium | 75 mg | 2% |
| Choline Bitartrate 50 mg | † | |
| L-Carnitine 50 mg | † | |
| L-Carnosine 100 mg | † | |
| *Percent Daily Values are based on a 2,000 calorie diet. | ||
| †Daily Value not established | ||
| Ingredients: Maltodextrin, Soy Protein Isolate, Energy Smart® (fruit juice, natural grain dextrin), Soy Lecithin, Trisodium Phosphate, L-Carnosine, L-Carnitine (as Carnipure), Choline Bitartrate, Chromium Polynicotinate. | ||
| Contains: Soy. | ||
| This product is processed in a facility that also processes Dairy & Soy products. | ||