Nutrition
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Brand architecture
Five clear performance goals.
XS simplifies sports nutrition into easy-to-understand categories built around action.
EnergizeBoosts energy.
HydrateDelivers essential hydration.
StrengthenSupports building lean muscle.
BurnSupports metabolism.
RecoverOptimizes muscle recovery.
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Protein questions & answers
How much protein supports your goals?
The general recommendation is about 0.83 grams per kilogram of body weight per day. Needs can increase with physical activity, resistance training, age, goals, and individual health considerations.
The American College of Sports Medicine recommends approximately 1.2–1.7 grams per kilogram per day for people who lift weights regularly or train for running and cycling events.
Newer research also challenges the idea that the body can only use about 30 grams of protein at one sitting. A controlled study found a larger and longer anabolic response after 100 grams compared with 25 grams following exercise.
This information is educational and is not individualized nutrition or medical advice. Protein needs vary; consult a qualified health professional for personal guidance.
Strengthen category
XS Muscle Multiplier supports lean muscle, power, and strength.
Daily use of XS Muscle Multiplier for 10 weeks is clinically proven to increase lean muscle mass, power, and strength while reducing body fat and fueling muscle recovery when combined with regular resistance training and a balanced diet.
Powered by all 9 essential amino acids plus 320 mg of L-Arginine, each serving provides 4.1 g of powerful essential amino acids with zero sugars and no artificial colors, flavors, or preservatives.
9Essential amino acids
320 mgL-Arginine
4.1 gEAAs with optimized 5:1:1 BCAA ratio
ZeroSugar, caffeine, dairy, soy, and gluten
Claims are based on supplied product information. Results require regular resistance training and a balanced diet.
Launching June 17, 2026
XS Creatine+ gives performance a triple-action boost.
Designed for bodybuilders, endurance athletes, and fitness enthusiasts, the unflavored and unsweetened formula mixes easily into any drink.
5 gCreatine monohydrate supports muscle performance.
2 gCalcium HMB supports muscle protein synthesis and recovery.†
772 mgKey electrolytes support cell hydration.
Unlike protein and essential amino acids that help build muscle, creatine provides cellular energy (ATP) to support intense activity. *These statements have not been evaluated by the Food and Drug Administration. †Based on ingredient function.
Burn category
Add an edge to your workouts.
XS Ignite Powder contains a clinically significant dose of Morosil™ Moro blood orange extract. Clinical studies show this ingredient can support weight loss and reductions in visceral fat when combined with diet and regular exercise.*†
400 mgMoro blood orange extract
200 mgL-glutamine
15Calories per sachet
ZeroCaffeine
Portable sachets can be taken alone or mixed into food and drinks. The naturally sweetened Blood Orange citrus flavor contains no artificial colors, flavors, or preservatives and is free of dairy, gluten, and soy.
*These statements have not been evaluated by the Food and Drug Administration. This product is not intended to diagnose, treat, cure, or prevent any disease. †When combined with diet and regular exercise.
Watch & learn
Official XS features.
Celebrate This Summer - Limited Edition Rocket Blast Flavor!
This fun flavor is here for the summer, just in time to celebrate America's 250th Anniversary! Enjoy a bold burst of positive energy from this nostalgic flavor, inspired by the spirit of American adventure. Packed with 114 mg of caffeine, mega doses of B vitamins and only 10 calories and zero sugar or carbs per can.
Shop Rocket BlastXS Muscle Multiplier
Strengthen support with all 9 essential amino acids, 320 mg of L-Arginine, and 4.1 g of EAAs to help fuel muscle recovery and workout performance.
Shop Muscle Multiplier
XS Sports Nutrition & Energy
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