Spike® Hardcore Energy

• Works fast*
• Contains zero sugars, zero carbs, zero artificial colors*
• Has awesome flavor*
• Boosts energy, mood, and motivation*
• Increases muscle power output and strength
• Decreases fatigue
• Increases muscular work capacity
• Improves aerobic capacity (peak oxygen uptake)
• Improves memory, concentration, and learning capacity*
• Supports brain and nerve function*

Beta-Alanine

Beta-alanine is a natural amino acid that buffers the burning fatigue from high-intensity exercise and significantly increases the amount of work you can do. Beta-alanine also reduces mental stress.* Learn More

Caffeine

Caffeine increases cyclic AMP and is well-known for its research-backed effects boosting energy and metabolism and potentiating other stimulants and fat-loss ingredients.* Learn More

L-Tyrosine

L-tyrosine is a naturally occurring amino acid used by the brain to make stimulatory neurotransmitters that improve memory, mood, focus, libido, coping ability, and sense of well-being. L-tyrosine supplementation leaves people feeling refreshed after training or manual labor by mitigating some of the short-term stress caused by intensive work.*

NOTE: N-acetyl-L-tyrosine is a more water-soluble form of the amino acid L-tyrosine* Spike Shooter®, Spike® Hardcore Energy, and Spike® Double Shot formulas contain N-acetyl-L-tyrosine. Power Drive® powder contains L-tyrosine. Learn More

NUTRITION FACTS

Servings Size 1 Can

Amount Per Serving

Calories 10-15

% Daily Value

Total Fat 0g 0%

Sodium 150mg 7%

Total Carbohydrate 0g 0%

Protein 0g

Vitamin B12 1000mcg 41670%

Not a significant source of saturated fat, trans fat, cholesterol, dietary fiber, total sugars, added sugars, vitamin D, calcium, iron, and potassium.

Ingredients: Carbonated water, citric acid, N-acetyl-L-tyrosine, beta-alanine, sodium citrate, natural flavors, caffeine, sucralose, sodium benzoate (protects flavor), methylcobalamin (vitamin B12).

CONTAINS 350 MG CAFFEINE PER CAN.

DO NOT EXCEED TWO CANS DAILY.

• Drink for a boost of sustained energy.*
• Don't exceed two cans daily.

Can I buy Spike Hardcore energy drink in stores?

Spike® energy drink is available at some convenient stores, mostly 7-Elevens. Call your favorite local store and ask them to start carrying the Spike® products. Stores really do listen to customers.

1. Artioli GG et al. Role of beta-alanine supplementation on muscle carnosine and exercise performance. Med Sci Sports Exerc. 2010 Jun;42(6):1162-73.
2. Derave W et al. Muscle carnosine metabolism and beta-alanine supplementation in relation to exercise and training. Sports Med. 2010 Mar 1;40(3):247-63. doi: 10.2165/11530310-000000000-00000.
3. Donovan T et al. β-alanine improves punch force and frequency in amateur boxers during a simulated contest. Int J Sport Nutr Exerc Metab. 2012 Oct;22(5):331-7. doi: 10.1123/ijsnem.22.5.331.
4. Hoffman JR et al. β-Alanine supplementation and military performance. Amino Acids. 2015 Dec;47(12):2463-74. doi: 10.1007/s00726-015-2051-9. Epub 2015 Jul 24.
5. Harris RC et al. The absorption of orally supplied beta-alanine and its effect on muscle carnosine synthesis in human vastus lateralis. Amino Acids. 2006 May;30(3):279-89.
6. Stout JR et al. Effects of beta-alanine supplementation on the onset of neuromuscular fatigue and ventilatory threshold in women. Amino Acids. 2007;32(3):381-6.
7. Abe H. Role of histidine-related compounds as intracellular proton buffering constituents in vertebrate muscle. Biochemistry (Mosc). 2000 Jul;65(7):757-65.
8. Suzuki Y et al. High level of skeletal muscle carnosine contributes to the latter half of exercise performance during 30-s maximal cycle ergometer sprinting. Jpn J Physiol. 2002 Apr;52(2):199-205.
9. Derave W et al. Beta-Alanine supplementation augments muscle carnosine content and attenuates fatigue during repeated isokinetic contraction bouts in trained sprinters. J Appl Physiol. 2007 Nov;103(5):1736-43.
10. Hill CA et al. Influence of beta-alanine supplementation on skeletal muscle carnosine concentrations and high intensity cycling capacity. Amino Acids. 2007 Feb;32(2):225-33.

1. Schoenfeld B et al. Caffeine Supplementation for Powerlifting Competitions: An Evidence-Based Approach," Journal of Human Kinetics. volume 68/2019, 37-48.
2. Nehlig A eta al. Caffeine and sports activity: a review. Int J Sports Med. 1994 Jul;15(5):215-23. doi: 10.1055/s-2007-1021049.
3. Yokokawa T et al. Caffeine increases myoglobin expression via the cyclic AMP pathway in L6 myotubes. Physiol Rep. 2021 May;9(9):e14869. doi: 10.14814/phy2.14869.

4. Caffeine for the Sustainment of Mental Task Performance: Formulations for Military Operations.

   Institute of Medicine (US) Committee on Military Nutrition Research. Washington (DC): National Academies Press (US); 2001.
5. Tabrizi R et al. The effects of caffeine intake on weight loss: a systematic review and dos-response meta-analysis of randomized controlled trials. Crit Rev Food Sci Nutr. 2019;59(16):2688-2696.
6. Ruiz-Moreno C et al. Caffeine increases whole-body fat oxidation during 1 h of cycling at Fatmax. Eur J Nutr. 2021 Jun;60(4):2077-2085.
7. Costill DL et al. Effects of caffeine ingestion on metabolism and exercise performance. Med Sci Sports. Fall 1978;10(3):155-8.

1. Owasoyo JO et al. Tyrosine and its potential use as a countermeasure to performance decrement in military sustained operations. Aviat Space Environ Med. 1992 May;63(5):364-9.
2. Roelands B et al. The effects of acute dopamine reuptake inhibition on performance. Med Sci Sports Exerc. 2008 May;40(5):879-85. doi: 10.1249/MSS.0b013e3181659c4d.
3. Shurtleff D et al. Tyrosine reverses cold-induced working memory deficit in humans. Pharmacol Biochem Behav. 1994 Apr;47(4):935-41. doi: 10.1016/0091-3057(94)90299-2.
4. Struder HK et al. Influence of paroxetine, branched-chain amino acids and tyrosine on neuroendocrine system responses and fatigue in humans. Horm Metab Res. 1998 Apr;30(4):188-94. doi: 10.1055/s-2007-978864.
5. Sutton EE et al. Ingestion of tyrosine: Effects on endurance, muscle strength, and anaerobic performance. Int. J. Sport Nutr. Exerc. Metab. 15:173– 185. doi: 10.1123/ijsnem.15.2.173.
6. Tumilty L et al. Oral tyrosine supplementation improves exercise capacity in the heat. Eur J Appl Physiol. 2011 Dec;111(12):2941-50. doi: 10.1007/s00421-011-1921-4.
7. Attipoe S et al. Tyrosine for Mitigating Stress and Enhancing Performance in Healthy Adult Humans, a Rapid Evidence Assessment of the Literature. Mil Med. 2015 Jul;180(7):754-65. doi: 10.7205/MILMED-D-14-00594.
8. Jongkees BJ et al. Effect of tyrosine supplementation on clinical and healthy populations under stress or cognitive demands--A review. J Psychiatr Res. 2015 Nov;70:50-7. doi: 10.1016/j.jpsychires.2015.08.014.
9. Rasmussen DD et al.Effects of tyrosine and tryptophan ingestion on plasma catecholamine and 3,4-dihydroxyphenylacetic acid concentrations. J Clin Endocrinol Metab. 1983 Oct;57(4):760-3. doi: 10.1210/jcem-57-4-760.