You train, then spend the next two days walking downstairs sideways.
L-Citrulline & L-Arginine Stack
Formulated to support post-workout recovery, so the day after feels like a day of training rather than a write-off.*
Wellness · Circulation & Recovery
Heavy legs weren't in the job description.
Two amino acids that work on the same thing from different ends: blood flow. L-citrulline and L-arginine together support circulation and post-workout recovery — for the session tomorrow, not just the one today.
- Supports post-workout recovery so tomorrow doesn't start stiff and heavy*
- Citrulline malate plus two forms of arginine — the pairing serious training stacks are built on
- Supports healthy circulation, the quiet system behind stamina and warm hands
- Two capsules with water — no scoops, no shaker, no sickly pre-workout flavour
🌾Gluten-Free🥬Vegetarian🌱Vegan-Friendly🧬Non-GMO🚫Allergen-Free🇺🇸Made in USA🌾Gluten-Free🥬Vegetarian🌱Vegan-Friendly🧬Non-GMO🚫Allergen-Free🇺🇸Made in USA🌾Gluten-Free🥬Vegetarian🌱Vegan-Friendly🧬Non-GMO🚫Allergen-Free🇺🇸Made in USA
Why it works
Recovery is the part of training nobody posts about.
Pre-workouts leave you buzzing at 9pm and still sore in the morning.
L-Citrulline & L-Arginine Stack
No stimulants here at all — this works on circulation, not adrenaline. Take it any time of day.
Most 'pump' products hide their doses inside a proprietary blend.
L-Citrulline & L-Arginine Stack
Every milligram is printed on the panel: 400 mg citrulline malate, 400 mg total arginine. Nothing hidden.
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💪
Recovery
Supports post-workout recovery.*
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🩸
Circulation
Two amino acids in the nitric-oxide pathway.
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🚫
Stim-Free
No caffeine — morning or evening, your call.
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📄
Doses Shown
No proprietary blend hiding the amounts.
The ritual
How to take it
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1
Take
Two capsules daily with 6–8 oz of water.
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2
Time it
Around your session or with a meal — consistency beats timing.
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3
Stack it
Water, sleep and protein still do the heavy lifting. This supports them.
Full transparency
What's inside — and what's not
L-Citrulline DL-Malate (400 mg), L-Arginine Hydrochloride (350 mg), L-Arginine Alpha-Ketoglutarate (50 mg), in a vegetable cellulose capsule with brown rice flour. Four ingredients. That's the whole list.
Never✕ Stimulants✕ sweeteners✕ artificial colours✕ proprietary blends
100-Day Money-Back Guarantee
Train with it for 100 days. If your recovery isn't any easier, reach out for a full refund — bottle included.
Applies after 21 days of consistent use, once per product, and covers the product price — not shipping. See our Refund Policy for details.
Pay Over Time
Split it into 4 interest-free payments with Afterpay, or use Shop Pay Installments — chosen at checkout.
Made Fresh, Shipped Tracked
Freshly made for you in 1–5 business days, then shipped tracked from the USA — typically at your door in 5–9 business days.
The Honest Comparison
Why capsules beat another tub of blue powder
Most pump products are a stimulant hit with a pinch of amino acids and a flavour system. This is the two amino acids, dosed and declared.
| What matters | ✦ Austin Bloome L-Citrulline & L-Arginine Stack | Typical pre-workout tub |
|---|---|---|
| Doses printed per capsuleNo proprietary blend hiding the amounts | ✓ | ✕ |
| Stimulant-freeTake it in the evening without wrecking your sleep | ✓ | ✕ |
| Two arginine formsHCl plus alpha-ketoglutarate, not just the cheap one | ✓ | Sometimes |
| No sweeteners or flavoursWater is the only thing you add | ✓ | ✕ |
| Travels in a pocketNo tub, no scoop, no shaker to wash | ✓ | ✕ |
| Made fresh in the USAMade to order and shipped tracked | ✓ | Sometimes |
400mg Citrulline400mg ArginineStim-Free
One bottle is a 30-day supply at two capsules daily.
L-Citrulline DL-Malate (400 mg), L-Arginine Hydrochloride (350 mg), L-Arginine Alpha-Ketoglutarate (50 mg), Vegetable Cellulose (capsule), Brown Rice Flour.
- L-Citrulline DL-MalateAn amino acid bound to malic acid.The headline ingredient — the body converts citrulline onward into arginine, which is why the two are paired.
- L-Arginine HClThe standard, well-absorbed arginine.Feeds the same circulation pathway directly, at 350 mg per serving.
- L-Arginine AKGArginine bound to alpha-ketoglutarate.A second form included alongside the HCl, declared separately at 50 mg.
- Vegetable capsule & rice flourThe shell and the filler.Only what the capsule needs to hold its dose evenly — no flavours or sweeteners.
Questions, answered
What does this actually do?
Citrulline and arginine both feed the pathway your body uses to widen blood vessels, which is why they're the classic circulation and recovery pairing. It's formulated to support post-workout recovery* — support for training, not a substitute for it.
Is this a pre-workout?
Not in the usual sense — there's no caffeine or stimulant of any kind. It works on the circulation side rather than the buzz side, so you can take it in the evening without it costing you sleep.
What's the difference between the two arginine forms?
Hydrochloride is the standard, well-absorbed form; alpha-ketoglutarate is a second form often included alongside it. You get 350 mg of the first and 50 mg of the second, printed on the panel rather than buried in a blend.
Will it give me a visible pump?
Some people notice it, some don't — it varies with training, hydration and dose, and we're not going to promise you a look. What it's formulated for is supporting circulation and post-workout recovery.*
How much do I take, and when?
Two capsules daily with a decent glass of water (6–8 oz). Around your session or with a meal both work — pick whichever you'll actually remember.
Do I need to take it right before training?
No. Daily consistency matters more than timing. Plenty of people take it with breakfast and train at night.
When will I notice a difference?
Recovery effects tend to show up over a couple of weeks of consistent training and dosing, not on day one. If you're chasing an immediate hit, this isn't that product.
What's actually in the capsule?
Four things and nothing else: 400 mg L-Citrulline DL-Malate, 350 mg L-Arginine HCl, 50 mg L-Arginine AKG, in a vegetable cellulose capsule with brown rice flour to hold the dose evenly. No flavours, no sweeteners, no proprietary blend hiding the numbers.
How long does one bottle last?
A month — 60 capsules at two a day. The multi-bottle option covers a full training block, and Subscribe & Save keeps it arriving without a gap.
How should I store it?
Cool, dry, lid closed. Amino acids draw moisture, so gym bags and bathroom shelves are the two worst spots for it.
Can I take it with other supplements?
It stacks fine with protein, creatine and magnesium. If you take blood-pressure or erectile-dysfunction medication, or anything nitrate-based, check with your doctor first — these amino acids act on the same pathway.
Is it safe for my stage — including pregnancy or breastfeeding?
This one is for general adult wellness, and it isn't intended for use during pregnancy or breastfeeding. If that's where you are right now, our Pregnancy and Postpartum collections are built for exactly that season instead. If you're under 18, on blood-pressure medication, or managing a heart condition, talk to your doctor before starting. This statement has not been evaluated by the FDA. This product is not intended to diagnose, treat, cure or prevent any disease.
Is it worth it — and what if it isn't for me?
A bottle is a month of the full 800 mg citrulline-and-arginine pairing, declared to the milligram, with no stimulants and nothing to mix. Give it a training block, and if it isn't for you, our 100-Day Money-Back Guarantee refunds you in full — the only thing you lose is the postage.