RMS Nutrition
Sprint Recovery
L-Citrulline & L-Arginine Stack
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Clinical-dose L-Citrulline Malate 2:1
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Supports fast-twitch muscle recovery
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Designed for multi-race track meets
Performance Report
Dead Legs in Your Second Race? Here Is the Physiology — And the Fix Sprinters Have Been Building Themselves for Years.
Sprinters have been mixing citrulline from bulk powder for years because nothing branded was designed for between-race recovery at a meet. Sprint Recovery formalizes the stack.
By Finn Reiser, Team USA Sprinter & Founder, RMS Nutrition | 6 min read
It is meet day. You ran a clean prelim at noon — felt smooth, hit your time. Semis are at 3pm.
You rest. Legs up. Roll out. Eat something light. Hydrate.
Your warmup for semis feels different. Heavier. Less snappy. By the time you step to the line for your second race, the legs that ran that prelim are not quite there anymore.
"My brain tells me to go faster but the legs just don't respond." Sprint community, every forum, every season
Collegiate sprinters run up to 6 events in one meet day. 100m prelim, semis, finals. 4x100. Sometimes a 200m in between. Each maximal sprint depletes nitric oxide, accumulates ammonia in muscle tissue, and leaves your fast-twitch fibers progressively less responsive.
The gap between your prelim and your final is not recovery time. It is a countdown to the performance you have left.
No supplement brand built anything for this specific problem. Until now.
Why L-Arginine Mostly Does Not Work — And What Does
If you have been around track long enough, you have probably heard about arginine. Maybe you tried it. Maybe it did nothing.
Here is the pharmacology that explains why.
When you take oral L-arginine, most of it is metabolized in the liver before it reaches your plasma through a process called first-pass metabolism. The actual dose that arrives at your muscles is minimal. That is why every well-designed study of arginine in performance athletes shows inconsistent to zero results.
"Forget the arginine. Just take citrulline." LetsRun.com — consistent across multiple threads
L-citrulline bypasses the liver entirely. It is absorbed in the gut, transported to the kidneys, converted to arginine, and enters the bloodstream efficiently. The result: sustained plasma arginine elevation and nitric oxide production that arginine supplementation alone cannot produce.
Bailey 2015
6g per day of L-citrulline improved severe-intensity exercise tolerance by 12%. L-arginine at the same dose: zero effect. The pharmacokinetic difference explains everything.
EJSS 2024
European Journal of Sport Science: citrulline malate at 8g per day reduced sprint performance decrement from 6.10% to 4.68% across 10 x 40m shuttle sprints (p=0.034, large effect size). The decrement — the gap between your best and your worst sprint in a session — shrank significantly.
Mechanism
L-citrulline produces NO through vasodilation, improves blood flow to working muscle, and critically — reduces ammonia accumulation between maximal efforts. Ammonia buildup is a primary driver of the "dead legs" sensation between races.
12%
Improvement in severe-intensity exercise tolerance with L-citrulline vs zero effect with L-arginine (Bailey et al., 2015)
Why Sprinters Were Right to Build This Stack Themselves
"I'm part of a sprint group. I can't find any good information on supplements for what I'm doing. Most of them are focused on the gym." Bodybuilding.com forum, 2017 — still accurate today
For years, informed sprinters have been buying citrulline malate from bulk powder suppliers — completely unbranded — because nothing commercially formulated spoke to their specific need: run a maximal 100m, recover in 45 minutes, run another one.
The problem with the DIY approach: dosing inconsistency, no timing guidance, no quality assurance, and no label claim verification. Bulk powder from an unmarked bag tells you nothing about its third-party testing status.
Sprint Recovery formalizes what the track community already figured out. Clinical citrulline dose. L-arginine as direct substrate to support the conversion cycle. Transparent label. Meet-day timing protocol printed on the packaging. Drug-test safe.
The Timing Mistake That Makes Citrulline Useless
Most athletes who try L-citrulline treat it like a pre-workout: mix it 10 minutes before training, notice nothing, conclude citrulline does not work.
The problem is the pharmacokinetic cascade. Citrulline is absorbed in the gut, transported to the kidneys for conversion to arginine, and arginine then enters the bloodstream for NO synthesis. This full cascade takes 60 to 90 minutes. If you are taking it right before training, the mechanism is not even halfway complete when you finish sprinting.
The 2024 sprint study used chronic loading — 3 days at 8g per day — not a single acute dose. Chronic loading produces more consistent results than trying to get the benefit from one serving.
Conversion cascade is not complete during your workout. Zero benefit. You conclude it does not work and never buy it again.
Conversion is complete at peak plasma levels when you step to the line for your second race. The decrement drops. Prelim legs in your final.
What Sprint Recovery Delivers
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Finn Reiser — Team USA Sprinter, RMS Nutrition Founder
I built Sprint Recovery because I ran multiple events in a day and felt what every sprinter feels — prelim legs and final legs are not the same thing. Nothing on the market was formulated for this. Everything was for bodybuilders wanting a pump. Sprint Recovery is for athletes who need to back up races.
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Clinical Citrulline Dose
6-8g L-citrulline per serving. The 2024 study used 8g/day and showed sprint performance decrement drop from 6.10% to 4.68%. This is the dose the research used.
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Bypasses Liver Metabolism
L-citrulline converts to arginine in the kidneys, reaching plasma efficiently. Bailey et al.: 12% improvement with citrulline; arginine at same dose showed zero effect.
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Weight Neutral
Zero water retention. Zero body composition change. The clean alternative for sprinters who abandoned creatine because of weight concerns. Take it between heats without worrying about race weight.
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Meet-Day Timing Built In
The protocol is on the label. 60-90 minutes before your next race. Take it during your warmdown from your previous heat. This is not guesswork — it is the timing the pharmacokinetics require.
The Protocol
Sprint Recovery Meet Day Protocol
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After your first race: Start your cooldown immediately. Begin your warmdown walk or jog.
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During cooldown: Take Sprint Recovery now. This gives the 60-90 minute conversion window before your next race.
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Lead-up days: Take Sprint Recovery daily in the 3 days leading up to your meet. Chronic loading produces more consistent benefits than a single acute dose.
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Training use: For sessions with 3+ quality reps where you feel performance drop-off. Take 60-90 minutes before your hardest speed endurance work.
Questions Sprinters Ask
Will this affect my drug test?
No. L-citrulline and L-arginine are naturally occurring amino acids found in food. Neither is on the WADA Prohibited List or the NCAA Banned Substance List. Sprint Recovery contains no stimulants, no undisclosed substances. Full label transparency.
I already take creatine. Can I stack these?
Yes. L-citrulline and creatine work through entirely different mechanisms and there is no known negative interaction between them. Creatine supports the phosphagen system for initial power output. Citrulline supports sustained blood flow and ammonia clearance between efforts. They address different parts of the recovery problem.
Why include L-arginine if citrulline is the superior compound?
L-arginine provides direct substrate for the NO synthesis cycle while citrulline is converting. The combination supports the conversion cascade more efficiently than citrulline alone during periods of high arginine demand — which is exactly what back-to-back maximal sprints create.
Athlete Reviews
What Sprinters Are Saying
★★★★★
"I used to trash my legs in prelims and have nothing left for finals. Sprint Recovery changed that equation. I come off the track from my first race and I'm already resetting. Back-to-back PRs at conference championships."
— Jameel W. | NCAA 100/200m, GA
★★★★★
"I recommend this to every one of my sprinters who runs multiple events. The science behind citrulline malate is solid — this just finally made it accessible for athletes instead of bodybuilders."
— Carla M. | High School Track Coach, OH
★★★★★
"Nothing branded was built for between-race recovery at a meet. Sprint Recovery fills that gap. Simple, clean, actually works."
— Devon P. | Club Sprinter, 200m/400m
Sprint Recovery by RMS Nutrition
Show Up Fresh for the Final
The only L-citrulline + L-arginine stack built for between-heat recovery. Clinical dose. Transparent label. Sprinter timing built in. Weight neutral.
$34.99
30 servings — Free shipping on orders over $50
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30-Day Money-Back Guarantee
Risk-free 30-day guarantee. If you're not satisfied, contact us for a full refund — no questions asked.
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Third-party tested • No prohibited substances • 30-day guarantee
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. Sprint Recovery is a dietary supplement. Results described are supported by cited research but individual results may vary. Consult a qualified healthcare professional before use. RMS Nutrition / AVS Inc., Fort Collins, CO.
