5g pure citrulline for clean pumps and easy stacking
BlackMarket Labs L-Citrulline keeps it simple for one goal: boost nitric oxide and blood flow without extra junk. This isn't some loaded pre-workout. It's just 5,000mg of pure L-citrulline per scoop. That lets you control your own pump setup, stims, and pre-workout vibe. In a world of weak blends and busy labels, this straightforward approach is a big plus.
L-citrulline boosts arginine levels better than taking arginine straight up. Arginine can get broken down too fast in your body, but citrulline skips that issue. It turns into L-arginine in your kidneys, and that helps make nitric oxide. Nitric oxide relaxes blood vessels, so you get better blood flow to muscles, more oxygen and nutrients, and that full pump you feel during workouts. It also helps clear out ammonia through the urea cycle—ammonia's a waste product that builds up and makes you tired during tough sessions.
The science on citrulline is solid. Over 46 clinical trials and 5 meta-analyses back it up, especially for raising arginine and helping blood pressure in some folks. For gym use, the best doses in studies are 6,000-8,000mg for quick pump effects. So 5,000mg here is a good, effective amount that you'll notice, but it's a bit under the top research range. In real life, it should still give you better pumps, veins popping, and smoother workouts for a lot of people.
BlackMarket L-Citrulline by BlackMarket Labs contains 5g L-Citrulline, a clinical dose for muscle recovery and growth.
Key Highlights
- 5,000mg L-Citrulline per scoop is a solid dose of a top nitric oxide booster. You'll feel better pumps, more veins, and improved workout flow, way better than the skimpy 2-3g hidden in blends.
- It's pure L-citrulline, so the full 5g is the real deal. No malate padding the numbers like in some products—this is straight citrulline you can check against the studies.
- L-citrulline raises arginine better than arginine alone. It dodges quick breakdown, turns into arginine in your kidneys, and ramps up nitric oxide for wider blood vessels and better flow.
- The pump comes from nitric oxide opening up blood vessels. Muscles get more oxygen and fuel, so you feel fuller reps, popping veins, and a stronger pump as your session builds.
- Citrulline helps the urea cycle clear ammonia from hard training. It's not just for looks— it fights fatigue in long, high-volume workouts.
- With over 46 trials and 5 meta-analyses, citrulline has serious backing. That's why it sticks around as a go-to in performance supps, even with all the new hype stuff.
- Studies often use 6-8g for best quick results, so this 5g is effective but not the max. It's a fair call: works great for many, but if you want the absolute strongest pump from citrulline alone, you might aim higher.
- No stims here, so it stacks easy with caffeine, glycerol, nitrates, creatine, or electrolytes. Build your own pre-workout without someone else's mix dictating the rules.
BlackMarket L-Citrulline by BlackMarket Labs contains 5g L-Citrulline, a clinical dose for muscle recovery and growth.
Who Is This For?
- Bodybuilders chasing hypertrophy who want max pumps, muscle fullness, and that mind-muscle link without stims every time. 5g pure L-citrulline boosts flow and feel, key for reps with control, tempo, and fatigue.
- Evening trainers avoiding sleep wreckers. Stim-free citrulline supports flow and performance without caffeine hanging around.
- Folks with their own caffeine who want custom stacks. 5g citrulline adds pumps to coffee or nootropics without double-dosing stims or unknowns.
- Strength guys with volume accessories after big lifts. Citrulline helps flow and clears ammonia, keeping late workout strong.
- Pump chasers sick of blends hiding weak doses. One ingredient, exact 5g, clear every time.
- Endurance or circuit folks needing circulation for conditioning, pushes, or long sessions. NO and urea roles sustain output.
How to Use
Mix 1 scoop in 10-16 oz water, take 30-45 mins pre-training. Timing lets it absorb before flow needs spike—beats taking it late. New to it or sensitive gut? Half scoop first, then full. Shaker's best for mixing, or stir hard in a glass. Empty stomach keeps it clean, but light meal 60-90 mins before is cool for energy. Stim-free, so add to coffee, pres, glycerol, creatine, electrolytes. No cycling for tolerance. Store cool and dry—amino powders clump with moisture.
What to Expect
0-10 mins: Mix and drink a simple amino powder—no rush, no big immediate hit. 10-20 mins: It's absorbing, but no sharp feel since it's about body changes, not buzz. 20-40 mins: Training starts, demand rises, and you notice fuller muscles, quicker pumps, better veins. 40-90 mins: Where it really pays off—sets keep drawing blood, workout stays strong instead of flattening. Days 1-7: Figure out your fit, solo or stacked, and most spot clearer pump gains. Weeks 2-4: Sessions get consistent as you nail timing, hydration, and stacks—no loading needed like creatine.
Key Ingredients
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L-Citrulline — 5,000mg — Boosts nitric oxide for fuller, more productive training pumps
BlackMarket L-Citrulline by BlackMarket Labs contains 5g L-Citrulline, a clinical dose for muscle recovery and growth.
Frequently Asked Questions
How much L-citrulline is in BlackMarket Labs L-Citrulline?
Each scoop provides 5,000mg of pure L-citrulline. That is a meaningful standalone dose for pumps, blood flow, and workout quality, though it sits slightly below the 6-8g range most commonly cited for the strongest acute standalone research effects.
Is this pure L-citrulline or citrulline malate?
This product provides pure L-citrulline, not citrulline malate. That means the full 5g on the label is the active amino acid itself rather than a blend whose total weight includes malic acid.
Does BlackMarket Labs L-Citrulline contain caffeine or stimulants?
No. This is a stim-free single-ingredient formula built only around L-citrulline, so it is suitable for users who want pump support without caffeine or who want to stack it with their own stimulant source.
When should I take BlackMarket Labs L-Citrulline before training?
Take 1 scoop about 30-45 minutes before your workout. That timing gives citrulline enough time to absorb and begin supporting arginine and nitric oxide production before your working sets start.
Can I stack this with my regular pre-workout?
Yes, and that is one of its best use cases. Because it contains only L-citrulline and no stimulants, it can be added to a low-citrulline pre-workout to strengthen pumps without doubling up on caffeine or overlapping multiple unnecessary ingredients.
Will I feel this right away like a high-stim pre-workout?
Not in the same way. Citrulline does not create a buzz or immediate rush; most users feel it as the session builds through better pumps, fuller muscles, improved vascularity, and less of that flat feeling during repeated sets.
Is 5g enough, or should citrulline be dosed higher?
Five grams is an effective dose and absolutely more meaningful than the underdosed 2-4g amounts found in many formulas. That said, the most commonly supported acute performance range for standalone L-citrulline is usually 6-8g, so this serving is effective but not maximally aggressive.
Can I use this on rest days?
You can, but most users reserve it for pre-workout use because citrulline’s main appeal here is acute blood-flow and training support. Unlike creatine or beta-alanine, it does not depend on long-term tissue saturation for its main performance role.
What does L-citrulline actually do in the body?
L-citrulline is converted into arginine in the kidneys, and that arginine is used to produce nitric oxide. Nitric oxide relaxes blood vessels, which improves blood flow and supports pumps, nutrient delivery, and oxygen transport during exercise.
Who is this product best suited for?
It is ideal for lifters who want better pumps and blood flow without stimulants, evening trainees avoiding caffeine, and advanced users who prefer to build custom stacks. It is especially useful for hypertrophy training, high-volume sessions, and anyone who feels their current pre-workout leaves them looking and feeling flat.
