Product Description
You've tried beet juice shots. You've loaded up on citrulline. But here's what most athletes don't realize: if your body can't absorb nitric oxide precursors efficiently, you're leaving performance on the table.
Quicksilver Scientific Cardio Elite is the first nitric oxide booster that starts working the second it hits your mouth – no waiting for your digestive system to break it down. Thanks to advanced nanoemulsion technology, the key nutrients are so small they absorb directly through your oral tissue and into your bloodstream.
Faster Blood Flow Without the Wait Traditional NO boosters take 30-60 minutes to kick in because they need to pass through your entire digestive system. Cardio Elite's nanoparticles are smaller than wavelengths of light – they begin absorption instantly through the mouth's soft tissue, giving you faster nitric oxide support when you need it most.
The Science Made Simple This formula combines potassium nitrate and nitrite (the compounds that your body converts directly into nitric oxide) with L-citrulline (the amino acid that extends NO production), plus circulation-supporting botanicals like Dan Shen, Ginkgo, and Rhamnan sulfate – a premier algae extract from Japan that helps relax blood vessels. Multiple studies show nitrate supplementation reduces the "oxygen cost" of exercise, meaning your body needs less oxygen to produce the same amount of work.
How to Use It
- Pre-Workout: Take 1 teaspoon 10-15 minutes before training on an empty stomach
- Daily Support: Use 1-3 times daily for sustained cardiovascular benefits
- Pro Tip: Hold in your mouth for 90 seconds before swallowing to maximize sublingual absorption
Elite cyclists and endurance athletes use Cardio Elite because improved blood flow means better oxygen delivery to working muscles, enhanced mental clarity during long efforts, and faster recovery between intervals.
This isn't just another beet supplement that sits in your gut. This is instant-absorption nitric oxide support that works as fast as your training demands.
Warning: Consult your practitioner prior to use if taking hypertension medications, other nitrate-based supplements, PDE5 inhibitors, or other medications. Discontinue use if you feel dizzy or faint. Do not use if pregnant of breastfeeding
- Gluten free
- Vegan
Supplement Facts
20 Servings
Serving Size: 5 mL (1 tsp.)
Serving Per Container: 20
| Amount Per Serving | ||
|---|---|---|
| % Daily Value* | ||
| Potassium (as Potassium Nitrate, Potassium Nitrite) 60mg | ** | |
| Proprietary Blend 1025mg | ** | |
| Dan Shen root extract (Salvia miltiorrhiza), Hawthorn berry extract (Crataegus monogyna), L-Citrulline, Rhamnox™100 Green Seaweed (Monostroma nitidum) extract, Potassium Nitrate and Potassium Nitrite, He Shou Wu (Fo-ti) root extract (Polygonum multiflorum), Ginkgo leaf extract (Ginkgo biloba), Myrrh (Commiphora myrrha) resin extract, Ginseng Plus® Panax Notoginseng root extract, Boswellia resin extract (Boswellia Serrata), Cinnamon bark oil. | ** | |
* Percent Daily Values are based on a 2,000 calorie diet. Your daily values may be higher or lower depending on your calorie needs.
** Daily Value (DV) not established
Always Happy Promise: Don't like a product? Tell us within 30 days of receipt and we'll make it right and make you happy. Here at The Feed, we want you to love your experience and the sports nutrition products you purchase. If, for any reason, you are not satisfied with your nutrition specific purchase, tell us.
We do not accept returns on food items that have been opened, but we will issue a store credit if you are unsatisfied. In the event of a return, you must first contact us before sending back a return shipment.
Consumable products over $40 receive a 50% store credit. This includes specialty nutrition products such as ketones or supplements/vitamins.
Quicksilver Scientific Cardio Elite FAQ's
Everything you need to know before getting started.
For workout benefits, take 1 teaspoon 10-15 minutes before training on an empty stomach. For daily cardiovascular support, you can take it 1-3 times throughout the day, ideally 10 minutes before meals.
Most NO boosters need to go through your entire digestive system before absorption begins, taking 30-60+ minutes. Cardio Elite uses nanoemulsion technology to create particles so small they start absorbing directly through your mouth tissue the moment you take it, giving you faster nitric oxide support.
Holding the liquid in your mouth allows the nanoparticles to absorb through the soft tissue under your tongue and along your cheeks (sublingual absorption). This bypasses your digestive system entirely for maximum speed and bioavailability.
Yes! Studies show nitrate supplementation reduces the "oxygen cost" of exercise – meaning your body requires less oxygen to perform the same amount of work. This can improve exercise capacity, support better blood flow to working muscles, and enhance mental clarity during long training sessions.