L-Arginine & L-Citrulline Capsules – High-Strength, Vegan

Q: What are L-arginine and L-citrulline?

L-arginine is a semi-essential amino acid – the body can produce it itself, but not always in sufficient amounts during certain phases of life. L-citrulline is a closely related amino acid and the direct precursor of L-arginine in the metabolism. Both have long been well-established amino acids among athletes and health-conscious people.

Q: Which foods contain L-arginine?

Contrary to common belief, meat is not the best source. Pumpkin seeds contain four times as much L-arginine as meat. Legumes, nuts, peas, lupins, hemp and rice are also excellent sources. With a balanced plant-based diet, a good arginine supply is therefore quite achievable.

up to −18%

Arginin & Citrullin Kapseln Dose – Aminosäure-Duo für Sportler

About the product

You give everything in training – but at some point, willpower alone is no longer enough. That's when what you provide your body with really counts. L-arginine and L-citrulline have been among the most popular amino acids in strength and endurance sports for years – and for good reason: your body converts citrulline back into arginine itself.

What makes our Arginine & Citrulline Capsules special:

We combine both amino acids in the proven 2:1 ratio: 3,000 mg of L-arginine plus 1,500 mg of L-citrulline per daily dose. Two active ingredients, one vegan capsule shell – nothing else. No fillers, no gimmicks.

Your benefits at a glance:

✔ 3,000 mg L-arginine + 1,500 mg L-citrulline per daily dose
✔ Proven 2:1 ratio – just as athletes have valued it for years
✔ Only 3 ingredients: two amino acids plus a vegan capsule shell
✔ Capsules instead of bitter powder – no taste, no mixing
✔ 100% vegan & free from artificial additives
✔ Made in Germany, independently lab-tested
✔ 180-day money-back guarantee – you take zero risk

For everyone who wants more

Whether it's strength training, endurance sports or simply an active lifestyle: 3x2 capsules spread across the day with meals – and your amino acid base is covered, without having to mix up powder shakes.

Usage & ingredients

Content per capsule
Ingredient	1 capsule
L-arginine	500 mg
L-citrulline	250 mg

Amount per daily dose
Ingredient	Daily dose 6 capsules
L-arginine	3000 mg
L-citrulline	1500 mg

Recommended intake
Take 2 capsules 3 times daily with plenty of liquid with a meal.

Ingredients
L-arginine, L-citrulline, capsule shell: hydroxypropyl methylcellulose

Properties
Vegetarian	yes
Lactose-free	yes
Sugar-free	yes
Vegan	yes
Gluten-free	yes
GMO-free	yes

Allergens
Milk	no
Eggs	no
Cereals containing gluten	no
Sulphur	no
Fish	no
Crustaceans	no
Molluscs	no
Lupins	no
Soybeans	no
Mustard	no
Celery	no
Sesame	no
Peanuts	no
Tree nuts	no

Arginine & Citrulline Capsules

In training, there comes a point where willpower alone isn't enough? 3000 mg L-arginine plus 1500 mg L-citrulline per day, in a 2:1 ratio.

More pump in your training
Arginine acts fast, citrulline lasts
Double high-dosed
For him & for her

In stock – delivered in 1–2 working days

180-day money-back guarantee

Every tub earns a stamp – a 3-pack earns 3. Loyalty card

Pay after 30 days with PayPal or Klarna

Try it first, pay later: with Klarna invoice or PayPal Pay Later you settle your order 30 days after delivery, at no extra cost. You choose the option at checkout.

Thousands of happy customers
Purely natural ingredients
180-day money-back guarantee

About the product

What makes our Arginine & Citrulline Capsules special:

Your benefits at a glance:

✔ 3,000 mg L-arginine + 1,500 mg L-citrulline per daily dose
✔ Proven 2:1 ratio – just as athletes have valued it for years
✔ Only 3 ingredients: two amino acids plus a vegan capsule shell
✔ Capsules instead of bitter powder – no taste, no mixing
✔ 100% vegan & free from artificial additives
✔ Made in Germany, independently lab-tested
✔ 180-day money-back guarantee – you take zero risk

For everyone who wants more

Usage & ingredients

Content per capsule
Ingredient	1 capsule
L-arginine	500 mg
L-citrulline	250 mg

Amount per daily dose
Ingredient	Daily dose 6 capsules
L-arginine	3000 mg
L-citrulline	1500 mg

Recommended intake
Take 2 capsules 3 times daily with plenty of liquid with a meal.

Ingredients
L-arginine, L-citrulline, capsule shell: hydroxypropyl methylcellulose

Properties
Vegetarian	yes
Lactose-free	yes
Sugar-free	yes
Vegan	yes
Gluten-free	yes
GMO-free	yes

Allergens
Milk	no
Eggs	no
Cereals containing gluten	no
Sulphur	no
Fish	no
Crustaceans	no
Molluscs	no
Lupins	no
Soybeans	no
Mustard	no
Celery	no
Sesame	no
Peanuts	no
Tree nuts	no

As seen on

Made in
Germany
Made in
Germany

Two amino acids – one effect. 1,500 mg of L-arginine and 750 mg of L-citrulline per daily dose – two amino acids that work closely together in the body and reinforce each other's effects.

Arginine and citrulline are precursors of nitric oxide (NO), which plays an important role in blood flow. Especially valued by athletes who want to get the most out of every workout.

More pump, more performance – naturally enhanced.

More pump in your training
Arginine acts fast, citrulline lasts
Double high-dosed
For him & for her

Capsules or powder?

Where the difference really shows in everyday life.

Surpresa Natural capsules	Nutrient powder
Taste-neutral	Grassy, bitter taste
Just swallow – done	Needs flavourings & sweeteners*
Precisely pre-dosed	Measure it yourself
No mixing, no measuring	Clumps quickly
Ideal on the go	Dust & residue
Capsule shell protects the ingredients	Absorbs moisture – clumps over time
Long shelf life, even after opening	Needs airtight storage

* Powders often need flavourings and sweeteners to mask their own taste. Our capsules do without.

Rated thousands of times

4.5

Tested by people like you – not just by us.

We have been making our capsules in Glinde near Hamburg since 2011. Thousands of customers have tried them and rated them honestly – on Amazon and here in our shop.

Amazon 4.4 over 3,300 reviews
Our shop 4.9 over 1,200 reviews

180-day money-back guarantee Not satisfied? You get your money back. Terms

As of 27 Sep 2026 · reviews of all Surpresa products, average rounded.

FAQ

Clear answers to everything that matters.

Transparent, well-founded and honest – so you know exactly what you’re getting.

Still have a question?

Write to us at info@surpresanatural.de – we reply personally and quickly.

What are L-arginine and L-citrulline?

L-arginine is a semi-essential amino acid – the body can produce it itself, but not always in sufficient amounts during certain phases of life. L-citrulline is a closely related amino acid and the direct precursor of L-arginine in the metabolism. Both have long been well-established amino acids among athletes and health-conscious people.

Why are L-arginine and L-citrulline combined?

L-citrulline enters the bloodstream via the intestine and is converted into L-arginine in the liver. This does not happen instantly – but continuously, over a longer period of time. This creates a long-lasting effect: the body receives a steadier supply of L-arginine instead of a short peak followed by nothing.

Which foods contain L-arginine?

Contrary to common belief, meat is not the best source. Pumpkin seeds contain four times as much L-arginine as meat. Legumes, nuts, peas, lupins, hemp and rice are also excellent sources. With a balanced plant-based diet, a good arginine supply is therefore quite achievable.

What is special about arginine from sugar cane fermentation?

Our L-arginine and L-citrulline are obtained in highly concentrated form from the fermentation of sugar cane – a natural, gentle process. This makes it purely plant-based, free from solvent residues and particularly well tolerated – unlike synthetically produced amino acids.