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Buy L-Arginine
Whether before training or in everyday life: L-Arginine is one of the most popular amino acids among strength athletes. With us, you'll find L-Arginine as powder, capsules, and tablets, from the NanoPure line by GN Laboratories to other well-known sports nutrition brands.
What is L-Arginine?
The amino acid L-Arginine occurs in the human organism in the so-called L-form and is one of the semi-essential amino acids. Your body does produce it itself, but with intense muscle training, that is often not enough. That's why many people deliberately turn to supplements, because a deficiency can develop quickly under athletic strain. It is contained as a protein building block in foods like meat, nuts, or legumes, but usually only in small amounts.
In metabolism, L-Arginine serves as a building block for the body's own nitric oxide synthesis (NO synthesis), which is why it is one of the most widely used single amino acids in bodybuilding, strength training, and muscle-building workouts. Athletes who train their muscles and appreciate the so-called muscle pump frequently rely on it – whether in powder form for stirring into drinks or in capsule form for on the go.
L-Arginine Supplement – Powder, Capsules, and Tablets
In our range, you'll find products from various brands. We carry two ingredient variants: L-Arginine HCL (hydrochloride) and AAKG (arginine alpha-ketoglutarate).
HCL products
The HCL form is characterized by a high proportion of pure arginine and good solubility. In our range:
- Nano Pure L-Arginine HCL Powder 500 g (GN Laboratories) – made in Germany in premium quality, 100 % vegan, lab-tested batch by batch
- Arginine HCL 500 g (Big Zone) – proven powder from the bodybuilding world
- L-Arginine HCL 500 g (InLead) – pure HCL powder
- L-Arginine 90 Capsules (Biotech USA) – 1,000 mg of L-Arginine HCl per capsule
- ArgiPower 1500 Mega Caps 120 Capsules (Olimp) – high-dose L-Arginine capsules with 1,500 mg per capsule
AAKG products
AAKG combines the amino acid with alpha-ketoglutarate. This form is especially popular with athletes who value a buffered arginine variant:
- AAKG 1250 Extreme Mega Caps 120 Capsules (Olimp) – also available as a 300-count pack
- Arginine AKG 150 Capsules (PEAK)
- AAKG 1000 100 Tablets (Biotech USA) – arginine tablets for uncomplicated intake
L-Arginine HCL or AAKG – which form suits you?
The two most common forms in supplements are HCL and AAKG. Beyond these, there is also the base form with an alkaline pH value. We currently do not carry it in our range. HCL and AAKG differ in several respects:
| Property | L-Arginine HCL | AAKG |
| Arginine content | approx. 75–83 % | approx. 49–51 % |
| Compound | Arginine + hydrochloric acid | Arginine + alpha-ketoglutarate |
| Bioavailability | High | Medium |
| Forms available from us | Powder and capsules | Capsules and tablets |
| Solubility | Good (especially as powder) | Medium |
| Popular with | Athletes who prefer pure arginine | Athletes who prefer a buffered form |
Both forms have their advantages: If you're looking for the amino acid in powder form, the HCL form with its high bioavailability is a good choice: You can adjust the amount flexibly and simply stir it into water or your shake. If you prefer the uncomplicated intake of L-Arginine via capsules or tablets, you'll find both HCL and AAKG variants in our range.
Buy pure L-Arginine at Gigas Nutrition
Wondering where to buy L-Arginine? With us, you get a wide selection: from the NanoPure line by GN Laboratories to established brands like Olimp, Biotech USA, Big Zone, PEAK, and InLead. Thanks to short delivery times and lightning-fast shipping (weekdays until 2 p.m.), your order reaches you quickly.
Our tip: The Nano Pure HCL Powder from GN Laboratories stands for premium quality: quickly soluble, nearly taste-neutral, and 100 % vegan. Every batch is tested in an independent laboratory to maintain the highest quality standards, and production takes place in Germany under GMP, HACCP, and IFS standards.
Looking for related products? Also discover our L-Citrulline products – an amino acid that is frequently used in combination with it. Or browse our entire amino acids collection and our pre-workout boosters.
Food supplements are not a substitute for a varied and balanced diet and a healthy lifestyle.
Frequently asked questions about L-arginine
Where can I order L-arginine?
You can order directly from us online, as powder, capsules or tablets. We stock GN Laboratories as well as other well-known sports nutrition brands. Thanks to express delivery (ordered by 2 p.m. on weekdays), you will have your order at home quickly.
What is the difference between amino acid L-arginine HCL and AAKG?
L-arginine HCL has a higher pure arginine content (approx. 75-83 %) and is easily soluble as a powder. AAKG combines the amino acid with alpha-ketoglutarate and contains around 49-51% pure arginine. Both forms are popular with athletes - the choice depends on your preferred dosage form and personal preference.
Which dosage form is right for me?
L-arginine powder is suitable if you want to adjust the quantity flexibly and stir it into drinks. Arginine capsules and tablets are ideal for on the go and can be taken quickly without measuring.
Is L-arginine vegan?
Not all products in our range are automatically vegan. Our Nano Pure L-Arginine HCL powder is 100% vegan and free from animal ingredients - also suitable for vegetarians. For capsule products, it depends on the capsule shell - products with gelatine capsules (e.g. from Biotech USA or Olimp) are not vegan.
How do I take L-arginine?
Always follow the consumption recommendation on the respective product - the recommended daily dose and the method of intake can be found on the packaging. Do not exceed the specified amount for consumption. In general, the amino acid is often taken around 30 minutes before training with sufficient water. On non-training days, many athletes take it in the morning on an empty stomach. The exact amount varies depending on the product and dosage form.