Our 10 Best Nsf Citrulline for 2026 [US]

May 2026 Edition

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1

Editor's Choice

9.7

PhysiVantage

Sendure-X Beetroot + Citrulline Powder - Caffeine-Free Pre-Workout - Boosts Blood Flow, Energy, VO2 Max, Endurance, Recovery - NSF Sport Certified, Peak Performance, Natural - 30 Servings Wild Berry

Editor's bottom line:

“This nsf citrulline is the best one we tested. In terms of quality, brand and price, we couldn't ask for more.”

Main Highlights

CAFFEINE-FREE PRE WORKOUT POWDER - Have a great workout and perform your best without the nasty jitters and post-workout crash common to many pre-workouts. SENDURE-X supports nitric oxide production and oxygen kinetics, giving you an energy, VO2, and performance boost you will feel, while also accelerating recovery between high-intensity intervals!
SCIENCE-BACKED, PERFORMANCE-BOOSTING INGREDIENTS - Contains clinically relevant amounts of beetroot extract powder and citrulline malate--both are proven performance-boosters, well-documented in peer-review scientific literature.
GREAT-TASTING & ALL-NATURAL - Enjoy our delicious Mixed Berry flavor! Naturally sweetened with stevia leaf, and free of artifical colors, flavors, and GMOs. NOTE: This product contains NO stimulants and NO beta-alanine, and this means NO jitters and itchy, tingling skin!
NSF CERTIFIED FOR SPORT - Every production run of SENDURE-X is third-party tested and certified "safe for sport" by the NSF. And like all PhysiVantage products, SENDURE-X is manufactured in the USA!
SUPPORTS CIRCULATION & HEART HEALTH - Use as daily supplement for a nitric oxide boost to support blood pressure, circulation, and heart health. Consume 1 scoop dialy, mixed into 16 to 24 oz of water.

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Picked by 397 people today

2

9.5

PURIST

PURIST Pre-Workout Powder | Citrulline, Beta Alanine, Natural Caffeine, Nootropics | Contains Stevia | Sugar Free, NSF Certified | Men & Women, Busy Parents | 30 Servings (Strawberry Lemonade)

Main Highlights

Clean, Crash-Free Energy Boost: Fuel every workout with 175mg of organic caffeine from PurCafa clean, plant-based source of energy. No jitters, no crash. Just sustained pre workout power for busy parents and professionals on the move that are looking for improved mental and physical performance.
Focus-Forward Nootropics Blend: Elevate mental performance with CognatiQ, nooLVL, and Alpha GPC. This nootropic stack sharpens concentration and reaction timeperfect for high-performance workouts, busy mornings, or any time mental clarity matters most.
Straight Forward Performance: we only use ingredients with a proven track record. Some pre-workout powders have over 20 ingredients, but sometimes less is more. All of our ingredients have clinical studies that back their claims, so you can be sure what you're taking is working
Sugar-Free, Gut-Friendly Formula: Only 1g carb and zero sugar, sweetened with Reb M Stevia for a light, clean taste. No artificial flavors or sweeteners. Enjoy a refreshing lemonade preworkout thats easy on your stomachno bloating, no crash, just clean hydration.
NSF Certified for Sport Confidence: Purist Pre Workout is NSF Certified for Sport, giving you peace of mind that every scoop is tested for banned substances and label accuracy. Trusted by pro athletes, designed for real-world parents and high performers.

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3

9.5

Proven4 Sport

Proven4 Sport BCAA Recovery Powder – NSF Certified for Sport – 5g Branched Chain Amino Acids 2:1:1, Electrolytes, Glutamine & Citrulline Malate - Caffeine-Free Post-Workout - 30 Svgs (Arctic Freeze)

Main Highlights

[NSF CERTIFIED FOR SPORT] CLEAN LABEL TRUST: Every batch is third-party tested for over 280 banned substances. This certification ensures that what is on the label is in the bottle, with no hidden stimulants or fillers.
[2:1:1 BCAA RATIO] MUSCLE PROTEIN SYNTHESIS: Formulated with a research-backed 2:1:1 ratio of L-Leucine, L-Isoleucine, and L-Valine to promote muscle protein synthesis. This specific amino acid profile supports lean muscle maintenance and helps offset muscle breakdown during intense training.
[RECOVERY SYNERGY] GLUTAMINE & CITRULLINE MALATE: Features 1g of L-Glutamine and 1g of L-Citrulline Malate to aid in post-exercise recovery. This combination supports natural recovery processes and metabolic waste clearance, allowing you to return to your next session feeling refreshed.
[ELECTROLYTE HYDRATION] STAMINA & ENDURANCE: Packed with a 450mg electrolyte blend to replenish vital minerals lost through sweat. This formula supports optimal hydration levels, helping you maintain peak performance through the final minutes of your game.
[STIMULANT-FREE VERSATILITY] ANYTIME RECOVERY: Our caffeine-free formula is perfect for evening training or late-night games where sleep quality is a priority. It dissolves easily in 8-10 oz of water, providing a refreshing, clean-tasting Arctic Freeze flavor- recovery drink without the crash or jitters of traditional pre-workouts.

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4

9.2

Core Med Science

Core Med Science Pre Workout Powder for Men & Women - Low Stim with Caffeine, L-Citrulline, Beta Alanine & Alpha GPC for Clean Energy, Focus & Pumps - NSF Certified for Sport - Bombsicle, 30 Servings

Main Highlights

CLINICALLY-DOSED PRE-WORKOUT: Each serving of Core Med Science Performance Pre-Workout delivers a purpose-built blend of L-Citrulline Malate (6 g), Beta-Alanine (3 g), Betaine Anhydrous (2 g), Alpha-GPC (300 mg), L-Arginine (2000 mg), Vitamin B12 (500 mcg), and moderate caffeine (100 mg) to support energy, endurance, muscle pumps, and mental focus. Bombsicle flavor, 30 servings.
FORMULATED FOR PERFORMANCE: This pre-workout supports sustained energy, enhanced blood flow for better pumps, delayed muscle fatigue, improved mind-muscle connection, sharper cognitive clarity, and overall endurance for workouts or daily activity.
SMOOTH MIXING, GREAT TASTE: Easy-to-mix, flavorful powderstirs cleanly in water or shakes. No clumps, no chalky aftertaste, just balanced energy and focus to fuel performance.
HOW TO USE: Mix 1 scoop with 8oz of water 20 minutes before training or activity. Beginners or caffeine-sensitive users may start with ½ scoop. Safe for daily use, including non-gym or casual activity. Do not exceed 1 serving per day.
CORE MED SCIENCE PERFORMANCE: With Core Med Science Performance, you're not just supplementing; you're investing in your body's potential to perform at its best. Elevate your training, recovery, and overall physical prowess with products designed for athletes. All Core Med Science Performance products are NSF for Sport certified and are third party tested for banned substances.

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Our Best Overall Choice

Best Choice

9.7

PhysiVantage

Sendure-X Beetroot + Citrulline Powder - Caffeine-Free Pre-Workout - Boosts Blood Flow, Energy, VO2 Max, Endurance, Recovery - NSF Sport Certified, Peak Performance, Natural - 30 Servings Wild Berry

Editor's bottom line:

“This is the best one we tested. In terms of quality, brand and price, we couldn't ask for more.”

Main Highlights

CAFFEINE-FREE PRE WORKOUT POWDER - Have a great workout and perform your best without the nasty jitters and post-workout crash common to many pre-workouts. SENDURE-X supports nitric oxide production and oxygen kinetics, giving you an energy, VO2, and performance boost you will feel, while also accelerating recovery between high-intensity intervals!
SCIENCE-BACKED, PERFORMANCE-BOOSTING INGREDIENTS - Contains clinically relevant amounts of beetroot extract powder and citrulline malate--both are proven performance-boosters, well-documented in peer-review scientific literature.
GREAT-TASTING & ALL-NATURAL - Enjoy our delicious Mixed Berry flavor! Naturally sweetened with stevia leaf, and free of artifical colors, flavors, and GMOs. NOTE: This product contains NO stimulants and NO beta-alanine, and this means NO jitters and itchy, tingling skin!
NSF CERTIFIED FOR SPORT - Every production run of SENDURE-X is third-party tested and certified "safe for sport" by the NSF. And like all PhysiVantage products, SENDURE-X is manufactured in the USA!
SUPPORTS CIRCULATION & HEART HEALTH - Use as daily supplement for a nitric oxide boost to support blood pressure, circulation, and heart health. Consume 1 scoop dialy, mixed into 16 to 24 oz of water.

Show Price

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Special Amazon deal ends in:

10 Best Nsf Citrulline of 2025

Tested and Reviewed: Top 10 Nsf Citrulline deals with expert ratings from 8.1 to a perfect 10

PhysiVantage

Sendure-X Beetroot + Citrulline Powder - Caffeine-Free Pre-Workout - Boosts Blood Flow, Energy, VO2 Max, Endurance, Recovery - NSF Sport Certified, Peak Performance, Natural - 30 Servings Wild Berry

Editor's bottom line:

Main Highlights

PURIST

PURIST Pre-Workout Powder | Citrulline, Beta Alanine, Natural Caffeine, Nootropics | Contains Stevia | Sugar Free, NSF Certified | Men & Women, Busy Parents | 30 Servings (Strawberry Lemonade)

Main Highlights

Proven4 Sport

Proven4 Sport BCAA Recovery Powder – NSF Certified for Sport – 5g Branched Chain Amino Acids 2:1:1, Electrolytes, Glutamine & Citrulline Malate - Caffeine-Free Post-Workout - 30 Svgs (Arctic Freeze)

Main Highlights

Core Med Science

Core Med Science Pre Workout Powder for Men & Women - Low Stim with Caffeine, L-Citrulline, Beta Alanine & Alpha GPC for Clean Energy, Focus & Pumps - NSF Certified for Sport - Bombsicle, 30 Servings

Main Highlights

Our Best Overall Choice

PhysiVantage

Sendure-X Beetroot + Citrulline Powder - Caffeine-Free Pre-Workout - Boosts Blood Flow, Energy, VO2 Max, Endurance, Recovery - NSF Sport Certified, Peak Performance, Natural - 30 Servings Wild Berry

Editor's bottom line:

Main Highlights

Deals are Live