How many capsules should I take, and when?

Adults take two capsules daily with 6-8 oz of water. There's no required timing, so pick a consistent moment — many people take theirs before a workout — and stick with it.

Who is Nitric Oxide a good fit for?

It's made for active adults who want to support healthy circulation, endurance, and recovery — whether you're training regularly or just staying on top of your wellness routine.

Is it safe to take? Any interactions I should know about?

Don't exceed the recommended dose. If you're pregnant or nursing, under 18, or have a known medical condition, check with your physician before using this or any dietary supplement. Your healthcare provider knows your situation best.

What's in it, and what makes it clean?

Just three active amino acids — L-Citrulline DL-Malate, L-Arginine Hydrochloride, and L-Arginine Alpha-Ketoglutarate — in a vegetable-cellulose capsule with brown rice flour. A short, straightforward ingredient list with nothing you can't pronounce.

Do you offer a subscription or returns?

Yes. Subscribe & Save 10% ships monthly at $21.59 with cancel-anytime flexibility, versus $23.99 for a one-time order. Not the right fit? We offer 30-day returns.

Nitric Oxide

Betterly Nitric Oxide is a simple, two-capsule daily formula built around three amino acids — L-Citrulline DL-Malate, L-Arginine Hydrochloride, and L-Arginine Alpha-Ketoglutarate — that help support your body's natural nitric oxide production. Nitric oxide plays a role in healthy blood flow, so this blend is designed to support normal circulation, nutrient delivery to working muscles, and endurance during exercise. It's an easy addition to a training or everyday wellness routine, with a short, straightforward ingredient list and no hype — just the aminos doing the work.

Gluten-Free
Vegetarian
Allergen-Free
Non-GMO
Vegan

One-time purchase$26.90Subscribe & Save 10%Delivered monthly · cancel anytime$24.21/mo

A small order handling fee (about 4%) is added at checkout and shown in your cart before you pay.

* These statements have not been evaluated by the Food and Drug Administration. This product is not intended to diagnose, treat, cure, or prevent any disease.

Key benefits

Supports Healthy Blood Flow

The L-citrulline and L-arginine blend helps support your body's nitric oxide production for normal, healthy circulation.

Made for Your Workout

Designed to support blood flow and endurance so you can get more out of training and everyday movement.

Nutrient Delivery to Muscles

Helps support normal delivery of nutrients to working muscles during exercise.

Supports Recovery

Supports muscle function and recovery after exercise, so it's easier to bounce back and keep going.

Key ingredients

L-Citrulline DL-Malate — supports the body's natural nitric oxide production for healthy blood flow and exercise endurance L-Arginine Hydrochloride — a nitric oxide precursor that helps support normal circulation and nutrient delivery to muscles L-Arginine Alpha-Ketoglutarate — supports normal blood flow and muscle function during exercise

How to use

As a dietary supplement, adults take two (2) capsules daily. For best results, take with 6-8 oz (177-237 ml) of water, or as directed by a healthcare professional.

Frequently asked questions

How many capsules should I take, and when?: Adults take two capsules daily with 6-8 oz of water. There's no required timing, so pick a consistent moment — many people take theirs before a workout — and stick with it.
Who is Nitric Oxide a good fit for?: It's made for active adults who want to support healthy circulation, endurance, and recovery — whether you're training regularly or just staying on top of your wellness routine.
Is it safe to take? Any interactions I should know about?: Don't exceed the recommended dose. If you're pregnant or nursing, under 18, or have a known medical condition, check with your physician before using this or any dietary supplement. Your healthcare provider knows your situation best.
What's in it, and what makes it clean?: Just three active amino acids — L-Citrulline DL-Malate, L-Arginine Hydrochloride, and L-Arginine Alpha-Ketoglutarate — in a vegetable-cellulose capsule with brown rice flour. A short, straightforward ingredient list with nothing you can't pronounce.
Do you offer a subscription or returns?: Yes. Subscribe & Save 10% ships monthly at $21.59 with cancel-anytime flexibility, versus $23.99 for a one-time order. Not the right fit? We offer 30-day returns.

Goes great together