About Doctor’s Best – Fast Acting Arginine Complex with Nitrosigine, 750mg – 60 tablets
Doctor’s Best Fast Acting Arginine Complex features Nitrosigine®, a patented inositol-stabilized arginine silicate complex delivering 1500 mg per serving. Nitrosigine is a scientifically engineered form of arginine designed for rapid bioavailability, making it a sophisticated choice for those seeking a premium arginine supplement as part of a balanced, active lifestyle.
Each serving of two tablets also provides meaningful amounts of calcium and potassium, two minerals that contribute to normal muscle function and electrolyte balance. The formula is free from gluten, soy, GMOs and animal-derived ingredients, making it suitable for vegan and vegetarian consumers.
Doctor’s Best is committed to science-based nutrition, using only ingredients backed by credible research. This product is manufactured to stringent quality standards, offering a clean, clearly labelled supplement you can incorporate with confidence into your daily routine.
Nutrition Facts
| Nutrient | Per serving (2 tablets) |
|---|---|
| Calcium (from dicalcium phosphate) | 93 mg (12% NRV) |
| Potassium (from Nitrosigine) | 60 mg (3% NRV) |
| Inositol-stabilized Arginine Silicate (as Nitrosigine®) | 1500 mg * |
* No established daily reference value.
Ingredients
Calcium (from dicalcium phosphate), Potassium (from Nitrosigine®), Inositol-stabilized Arginine Silicate (as Nitrosigine®). Other Ingredients: Microcrystalline cellulose, croscarmellose sodium, stearic acid, hydroxypropyl cellulose, magnesium stearate (vegetable source), clear coating (hypromellose, glycerin).
Usage & Dosage
Take 2 tablets daily, preferably without food, or as recommended by a nutritionally informed physician. Serving size: 2 tablets. Servings per container: 30.
Warnings
Nitrosigine is recommended for use in adults only and should not be used by pregnant or lactating women. Consult your physician before using this product if you are pregnant, lactating, have a medical condition, on prescription medications, or other supplements that may lower blood pressure while taking in concomitant with this product. Not for use by individuals under the age of 18 years. Keep out of reach of children.
Allergen Information
Free of: gluten, soy, GMO, animal ingredients. No allergens declared on label.
Storage
Store in a cool, dry place.
Dietary Information
- Vegan
- Vegetarian
- Gluten Free
- Lactose Free







