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Doctor's Best Fast Acting Arginine Complex Nitrosigine 60 Tablets front view showing the product label.

Doctor's BEST

Doctor's Best Fast Acting Arginine Complex Nitrosigine 1500mg Nitric Oxide Booster Supplement For Cardiovascular Support And Muscle Pumps 60 Tablets

Why you'll like it

  • Rapid Nitric Oxide Production — Nitrosigine complex starts boosting nitric oxide levels in fifteen to thirty minutes for immediate vascular benefits.
  • Enhanced Workout Performance — Promotes greater blood flow to working muscles to improve exercise tolerance and deliver superior muscle pumps.
  • Long Lasting Circulation Support — Elevates blood flow and arginine levels for up to six hours per dose to sustain physical energy.
  • Cardiovascular Health Maintenance — Helps improve vessel flexibility and cardiac circulation over time with consistent daily usage.
  • Clean Dietary Profile — Formulated to be completely non-GMO, vegan, gluten-free, and soy-free to accommodate diverse dietary needs.

Product details

Doctor's Best Fast Acting Arginine Complex Nitrosigine 1500m — Buy in India

With India's growing awareness of preventive health, more people are choosing authentic US supplements for quality assurance. Doctor's BEST is trusted globally for purity, potency, and third-party testing. Not available through any Indian retailer — this is the authentic USA version imported directly. Priced at ₹2,339 on Dropy — Delivered to your doorstep with COD option. 100% genuine USA import.

Doctor's Best Fast Acting Arginine Complex with Nitrosigine is a science-based dietary supplement engineered to rapidly elevate nitric oxide levels in the body. Designed for fitness enthusiasts, athletes, and individuals seeking advanced cardiovascular support, this premium formula helps optimize blood flow and enhance vascular flexibility. Each serving delivers a potent 1500mg dose of Nitrosigine, a patented complex of inositol-stabilized arginine silicate. L-arginine is a vital amino acid that serves as a precursor to nitric oxide, a molecule responsible for dilating blood vessels to promote efficient cardiac circulation and nutrient delivery. Unlike standard L-arginine supplements that take longer to absorb, this fast-acting complex begins working within fifteen to thirty minutes, providing sustained performance benefits that last for up to six hours. Regular supplementation helps maximize nitric oxide production over time, resulting in improved physical endurance, enhanced muscle pumps during training, and more efficient post-workout recovery. For Indian consumers looking to elevate their fitness or maintain healthy daily circulation, this product offers an advanced, clinically studied alternative to traditional amino acid tablets.

Explore our full range of Doctor's BEST products — from moisturizers to cleansers, all directly sourced from the USA with authenticity guarantee. Shop more skin care at Dropy.

  1. Take 2 tablets daily, preferably without food, or as recommended by a nutritionally informed physician.
  2. For optimal performance benefits on training days, consume the tablets approximately fifteen to thirty minutes prior to starting your workout session.

Arginine Silicate Inositol (ASI, as Nitrosigine) 1500mg, Potassium (from Nitrosigine) 60 mg, Microcrystalline cellulose, dicalcium phosphate, croscarmellose sodium, stearic acid, hydroxypropyl cellulose, magnesium stearate (vegetable source), clear coating (hypromellose, glycerine).

As printed by the brand. Check the pack label if you have an allergy.

BrandDoctor's BEST
CategoryL-Arginine
UPC753950004061
Ships fromUSA (sourced directly), checked in Navi Mumbai
Sold byDropy.in

Ratings & reviews

From our customers

4.86 reviews
Used this product?Your review helps other shoppers choose.
Write a reviewDoctor's Best Fast Acting Arginine Complex Nitrosigine 1500mg Nitric Oxide Booster Supplement For Cardiovascular Support And Muscle Pumps 60 Tablets
Filter reviews6 reviews

Top reviews first: highest rated, with photos first

  • 💖Brittany T.
    5 ★

    Effective article

    You can feel the power in this one almost as soon as you get it down.

  • Redwood
    5 ★

    Noticable improvements

    Noticable improvement in cognitive clarity after three days. Wow! Excellent product. Increased nitric oxide levels, improved cognition. Neurologist approved.Now I'm reordering with subscription.

  • [MAG] G.
    5 ★

    Does what it is supposed to do.

    Because I use a lot of supplements, it's important for me to pay attention to cost and value and side effects. This is a brand I use often because there are fewer side effects and they usually carry a strength and effectiveness that works for me.you won't be disappointed if you buy this brand.

  • Cf
    5 ★

    think it helped give me more flow in my feet after blocked artery detected

    I think it helped give me more flow in my feet after blocked artery detected

Doctor's Best Fast Acting Arginine Complex Nitrosigine 1500mg Nitric Oxide Booster Supplement For Cardiovascular Support And Muscle Pumps 60 Tablets6 customer reviews
4.8

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FAQs

What is the difference between Nitrosigine and L-arginine?

Nitrosigine is a patented complex of inositol-stabilized arginine silicate that is clinically shown to absorb much faster and last longer than standard L-arginine, increasing nitric oxide levels in fifteen to thirty minutes.

What is nitrosigine used for?

Nitrosigine is used to enhance nitric oxide production, which dilates blood vessels, increases blood flow to muscles during workouts, improves exercise endurance, and supports long-term cardiovascular health.

Is Nitrosigine safe to consume?

Yes, Nitrosigine has been extensively tested in clinical trials and is safe for healthy adults when consumed according to the recommended dosage instructions on the product label.

How can I be sure this Doctor's Best supplement is authentic in India?

Dropy sources products directly from official distributors and retailers in the United States. Every bottle is a genuine USA import, ensuring you receive the identical premium formula sold in the American market.

Can women take this fast acting arginine complex?

Yes, this supplement is designed for both men and women who want to support healthy circulation, improve physical performance, and optimize cardiovascular wellness.

How long will delivery take?

Most orders arrive in 15–20 days: we source each product directly from the USA, check it at our Navi Mumbai warehouse and pack it on video. Items marked Dropy Express ship from our India warehouse and arrive in 3–5 days.

Is cash on delivery available?

Full cash on delivery is available all over India on Dropy Express items. For other orders from ₹2,499 to ₹15,000 you can use Partial COD: pay 25% online now and the rest in cash on delivery.

Are your products genuine?

Yes. Every product is 100% authentic, sourced directly from the USA, quality-checked and packed on video at our Navi Mumbai warehouse.

What if my order arrives damaged or wrong?

Write to us at [email protected] as soon as it arrives. Damaged, wrong or not as described, our Buyer Protection gives you a full refund. The details are in our Return, Refund & Cancellation Policy.

Is delivery free?

Delivery is free on orders from ₹1,499. Below that a ₹79 delivery fee applies.