Doctor’s Best Fast Acting Arginine Complex features Nitrosigine, a patented inositol-stabilised arginine silicate that supports nitric oxide (NO) production in the body. Each serving of 2 tablets delivers 1500 mg of Nitrosigine alongside 93 mg of calcium and 60 mg of potassium, making it a well-rounded formula for those who train regularly and want to support blood flow to working muscles during exercise.
Designed to get to work within 15 minutes, a single dose is engineered to deliver benefits lasting up to 6 hours throughout your session. Continued use is said to build NO levels over time, supporting flow and vessel flexibility. The formula is vegan-certified, non-GMO, gluten free, and soy free — straightforward credentials for those who are particular about what goes into their supplements.
Each bottle contains 60 tablets, giving you a solid supply to work through alongside your training. Doctor’s Best is a well-regarded science-focused brand, and this product reflects their commitment to using research-backed, patented ingredients rather than generic alternatives.
| Weight | 0.1150 kg |
|---|---|
| Ingredients | Calcium (from dicalcium phosphate), Potassium (from Nitrosigine), Inositol-stabilized Arginine Silicate (as Nitrosigine), Microcrystalline cellulose, croscarmellose sodium, stearic acid, hydroxypropyl cellulose, magnesium stearate (vegetable source), clear coating (hypromellose, glycerin). Non GMO, Gluten Free, Soy Free, Vegan. Non GMO, Gluten Free, Soy Free, Vegan. |
| Recommended Use | Take 2 tablets daily, preferably without food, or as recommended by a nutritionally informed physician. |
| Warnings | Nitrosigine is recommended for use in adults only and should not be used by pregnant or lactating women. Consult a physician before use if you have a medical condition, taking medications for hypertension, diabetes, or other supplements that may lower blood pressure while taking in concomitant with this product. Keep out of reach of children. Store in a cool dry place. |
| Brand | Doctor's Best |
| Nutritional Information | Recommended daily dose (2 Tablets) %NRV • Calcium (from dicalcium phosphate) 93 mg 12% • Potassium (from Nitrosigine) 60 mg 3% • Inositol-stabilized Arginine Silicate (as Nitrosigine) 1500 mg |
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