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100% Pure L-Arginine Powder
$31.96
RRP $39.95
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Description
Switch Nutrition 100% Pure L-Arginine is a single-ingredient, unflavoured powder providing 1000 mg of free-form L-arginine in each 1 g scoop. L-arginine is a conditionally essential amino acid and the substrate the body uses to make nitric oxide. It contains free-form L-arginine rather than L-arginine hydrochloride, so the 1000 mg figure is arginine itself and not a salt weight. It is the 200 serve tub, which is 200 g. That role is why arginine turns up in so many pre-workout formulas, and the plain powder is for people who would rather set their own amount before training than take whatever a blend has decided for them.
Product Strengths
- Measured out before training at an amount you set yourself, rather than one fixed inside a blend.
- 1000 mg of free-form L-arginine in every 1 g scoop, not a hydrochloride salt.
- 200 serves in the 200 g tub.
- Single ingredient, unflavoured, with no fillers.
- 17 kJ and 1.0 g of protein per serve.
Suitable For / Not Suitable For
Suitable for: Active adults and athletes.
Not suitable for: Anyone with an allergy to the listed ingredients; Pregnant or breastfeeding women, unless advised by a health professional.
Ingredients
| Each 1 g serve (1 scoop) contains | Amount |
|---|---|
| L-arginine, free form | 1000 mg |
Ingredient: 100 per cent pure L-arginine. Each 1 g serve provides 17 kJ of energy and 1.0 g of protein.
Suggested Use
Mix 1 scoop, being 1000 mg, into 250 to 350 mL of water, or add a scoop to your pre-workout, amino, protein or superfood drink. Take before exercise, or as required.
Allergens
Although it has no added gluten, dairy or soy containing ingredients, it is manufactured in a facility that also processes wheat, tree nuts, seeds, dairy, soy, corn and fish. Always review label for full list of ingredients.
Storage
Store in a cool, dry place away from direct sunlight and keep the container tightly sealed after opening.
Disclaimer
This product is a formulated supplementary sports food and is not a sole source of nutrition. It should be used in conjunction with a balanced diet and an appropriate physical training or exercise programme. Not recommended for children under 15 years of age, or for pregnant or breastfeeding women. Always read the label and follow the directions for use.
ingredients
suggested dose
L-Arginine
What is L-arginine?
L-arginine is an amino acid your body makes and gets from food, and here it comes on its own as a single supplement. Look for L-arginine on the label, or a salt such as arginine HCl or AAKG.
Christina HanleyBHSc (Nutritional Medicine), Digital Experience & Content Manager
Checked this page September 2026
See what we checked
Is L-Arginine right for you?
Common questions
Is L-arginine the same as L-citrulline?
No. They're two different amino acids, each with its own page here. They're related, which is why you'll often see them mentioned together, but one isn't a form of the other. If a label says L-citrulline or citrulline malate, you're buying citrulline, not arginine. Pick the one you actually came for, and ask us if you're not sure.
Is oral L-arginine a listed ingredient in Australia?
The only Australian listing we found for arginine (item 673) is for creams and other medicines applied to the skin. That doesn't mean oral L-arginine is banned. It's usually sold as a food-style supplement that makes no health claim, and arginine salts may be listed separately under their own names. Either way, read the label on the product you're looking at.
The evidence, and its limits
The Australian rules
Not sure this is the right form for you? Ask one of our naturopaths. It is free and takes 10 minutes.
Always read the label and follow the directions for use. General information only, and not a substitute for advice from your doctor or one of our naturopaths.