Key Benefits
More Nitrate-Dense Than Beets– Deliversmore dietary nitrate per gramthan common beets or green spinach
Concentrated Serving Size– 4.4 g (400 mg dietary nitrate) in just ½ tablespoon
Supports Natural Circulation– A plant-based source of nitrates to complement an active lifestyle
Clean, Steady Energy Source– No caffeine, no crash — from naturally occurring plant compounds
Post-Activity Support– Nutrient-rich red spinach extract that fits easily into your wellness routine
One Pure Ingredient– 100% red spinach extract with no fillers, sugar, or oxalates
Vegan & Non-GMO– Clean and simple nutrition you can trust
Choose Your Package and Save!
MEMBERSHIP SAVINGS – 15% OFF
$33.96 ONLY
Get 15% off each bottle with subscription. Cancel anytime.
100% Satisfaction Guaranteed
All-Natural Energy Without The Crash
Your satisfaction is our priority. We’re so confident in the quality and effectiveness of RS400™ that we offer a 100% Satisfaction Guarantee. Try our pure RS400™, and if you’re not completely satisfied with your results, we’ll make it right.
Customer Review
Why Choose RS400?™
RS400 delivers more plant-based nitrates than common sources like beets and greens. Here’s how it stands apart:
Multiple Times Higher in Plant Nitrates
RS400 provides significantly more dietary nitrate per serving than common sources like beets or spinach, offering a concentrated, plant-based option to complement your active lifestyle.
A Clean, Convenient Alternative
Skip the mess, earthy taste, and oxalates common to beetroot. RS400 delivers high-nitrate red spinach extract in a clean, concentrated, and easy-to-use form—without the hassle.
FREQUENTLY ASKED QUESTIONS
RS400 is rigorously 3rd party tested for nitrate levels, pesticides, and many other chemicals, but as a single ingredient botanical food with a nutrition facts panel vs supplement panel, NSF and Informed Sport are unnecessary.
We use the HPLC-UV testing method. The nitrate is naturally occurring in the plant, and there are 400mg of naturally occurring nitrate in every serving.
Red Spinach, also known as Amaranth, is an ancient plant that science has only recently discovered for its high nitrate content and ability to boost your body's overall performance. Once primarily used in traditional diets, its performance-enhancing properties are now gaining attention in the world of sports nutrition.
RS400 delivers more than 4x times the nitrate of beets for more nitrate boost. This leads to a stronger body and enhanced exercise performance without the earthy taste or preparation of beetroot.
Red spinach powder can be mixed with smoothies, juices, or sprinkled on salads. It also blends well into soups, stews, and even baked goods for an extra nutritional boost.
Simply take one serving of RS400 daily, ideally 1-2 hours before your athletic activity.
Yes, RS400 is formulated with natural ingredients, making it safe for athletes of all types. However, if you have any specific health concerns or conditions, it’s always a good idea to consult with your healthcare provider before adding a new supplement to your routine.
Yes, RS400 is 100% plant-based, making it suitable for both vegetarians and vegans.
RS400 can be taken alongside other supplements. If you're already using nitrate-based products or have specific dietary concerns, it's best to consult your doctor or nutritionist to ensure compatibility.