LifeSource Vitamins All Natural Pre-Workout — 1.3 lbs Powder — Clean Energy, Muscle Pumps & Endurance Performance*
LifeSource Vitamins All Natural Pre-Workout combines clinically studied Citrulline Malate, Glycerol Monostearate, L-Arginine, Beetroot, Green Tea Extract, Panax Ginseng, L-Theanine, Beta-Alanine, OKG, and Niacin to support explosive energy, muscle pumps, focus, and workout endurance. Produced in FDA-registered, GMP-certified facilities and 3rd-party tested for identity, potency & purity.*
Research-Driven & Verified Product.
Explore the clinical research, ingredient science, and global evidence supporting this product below.
Research Promise: At LifeSource Vitamins, our commitment is rooted in research and results. Every benefit below is supported by human clinical studies indexed in the National Institutes of Health (NIH) via PubMed, with full texts available in the National Library of Medicine (NLM) PubMed Central (PMC) when available. In addition, we reference reviews from 39 respected health organizations and insights from 20 leading universities worldwide to ensure our guidance aligns with credible science.*
Clinically Studied Benefits
✓ Citrulline Malate improves bench press repetition volume & reduces muscle soreness — Enhances anaerobic performance and recovery in trained men.
NIH/PubMed — Pérez-Guisado, 2010
✓ Beetroot Nitrates increase endurance time-to-exhaustion & reduce oxygen cost — Boosts performance through nitric oxide pathway.
NIH/PubMed — McMahon, 2017
✓ Panax Ginseng accelerates muscle force recovery & reduces perceived effort — Supports recovery after eccentric training.
NIH/PubMed — Jowko, 2020
✓ Green Tea Extract increases fat oxidation & improves endurance performance — Enhances capacity in active men.
NIH/PubMed — Ichinose, 2010
✓ L-Theanine + Caffeine improves reaction time, accuracy & alertness — Under competition stress in athletes.
NIH/PubMed — Giesbrecht, 2010
✓ Beta-Alanine increases muscle carnosine, improves anaerobic performance & delays fatigue — ≥4 weeks supplementation.
NIH/PubMed — Georgiou, 2024
✓ L-Arginine enhances time to exhaustion & reduces blood lactate — In cyclists (6 g acute dose).
NIH/PubMed — Bailey, 2007
✓ Niacin supports mitochondrial energy metabolism & ATP production — During exercise.
NIH/PubMed — Knip, 2011
✓ Glycerol Hyper-hydration delays dehydration & improves endurance — In hot environments.
NIH/PubMed — Hitchins, 2001
✓ Ornithine (OKG) reduces perceived fatigue & improves endurance performance — In athletes.
NIH/PubMed — Shimada, 2013
Additional / Promising Evidence
✓ Beetroot Juice improves recovery of muscle function — After strenuous exercise.
NIH/PubMed — Clifford, 2021
✓ Green Tea Catechins reduce oxidative stress & muscle damage markers — After sprint training.
NIH/PMC — Sprouse, 2015
✓ Panax Ginseng improves VO₂max & aerobic endurance — In trained subjects.
NIH/PubMed — Park, 2018
✓ Glycerol supplementation improves hydration status & prolongs exercise time in heat — Enhances performance under thermal stress.
NIH/PubMed — Anderson, 2000
✓ L-Theanine reduces pre-competition anxiety & improves stress resilience — In athletes.
NIH/PubMed — Lim, 2024
✓ Beta-Alanine improves sprint performance — In team sports players.
NIH/PubMed — Saunders, 2012
University-Led & Academic Studies
✓ University of Exeter — Leading beetroot nitrate trials showed reduced oxygen cost of submaximal exercise.
NIH/PubMed — McMahon, 2017
✓ University of Tsukuba — RCTs confirm citrulline enhances performance in cyclists.
NIH/PubMed — Suzuki, 2016
✓ Korean Universities — Panax ginseng RCTs showing accelerated recovery and reduced muscle damage.
NIH/PubMed — Jowko, 2020
✓ Penn State / FSU — Beta-alanine trials showing significant increases in muscle carnosine and performance in sprinters.
NIH/PubMed — Georgiou, 2024
We monitor research from leading institutions —
Harvard, Johns Hopkins, Mayo Clinic, Cleveland Clinic, Cambridge, Oxford, Stanford, Yale, MIT, the University of Florida, Oregon State University – Linus Pauling Institute, Tufts, Boston University, Cornell, Columbia, Ohio State — to align with credible science.*
Key Ingredients
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Citrulline Malate — Proven to increase nitric oxide, boost blood flow, and enhance rep performance (Pérez-Guisado, 2010).
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Beetroot Powder — Nitrate-rich, improves oxygen efficiency, endurance, and recovery (McMahon, 2017).
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Panax Ginseng — Adaptogen that reduces fatigue and improves muscle recovery (Jowko, 2020).
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Green Tea Extract (Natural Caffeine) — Enhances fat oxidation and endurance capacity (Ichinose, 2010).
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L-Theanine — Calms the jitters of caffeine, improves focus under stress (Giesbrecht, 2010).
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Beta-Alanine — Buffers lactic acid, delays muscle fatigue, boosts anaerobic output (Georgiou, 2024).
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Ornithine Alpha-Ketoglutarate (OKG) — Assists ammonia clearance, reducing fatigue during prolonged workouts (Shimada, 2013).
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Glycerol Monostearate — Promotes hyper-hydration and cellular volumization for endurance (Hitchins, 2001).
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Niacin (Vitamin B3) — Essential for ATP energy metabolism during exercise (Knip, 2011).
Brief Benefit Bullets
- Citrulline Malate + Beetroot for pumps & nitric oxide*
- Green Tea + Ginseng for natural energy & endurance*
- Beta-Alanine + OKG for stamina & delayed fatigue*
- L-Theanine + Caffeine for smooth focus without jitters*
- Glycerol & Arginine for hydration & blood flow*
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3rd-party lab tested for purity & potency
Suggested Use
Mix 1 scoop (19 g) with 8–10 oz cold water and consume 20–30 minutes before training. Start with ½ scoop to assess tolerance. Do not exceed 1 scoop per day. If pregnant, nursing, taking medications, or have a medical condition, consult your physician.*
Product Specifications
• Serving Size — 1 scoop (19 g)
• Servings Per Container — 30
• Form — Powder
• Flavor — Natural
• Free From — Synthetic stimulants, artificial colors, gluten*
• Quality — Third-party tested for identity, potency & purity
LifeSource Vitamins — Proudly American — Since 1992
*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.
All Natural Pre-Workout — Citrulline Malate, Beta-Alanine, Beetroot & Ginseng for clean pumps, strength, stamina & recovery. 3rd-party tested. Clinically Studied Ingredients — NIH/PubMed!*
