Performance+ Test
Understand Your Performance—In Real Time
The SparkDX Performance+ Test gives you a clear snapshot of how your body is functioning right now—so you can make smarter decisions around activity, focus, and recovery.
Train smarter. Stay focused. Recover better.
Understand your performance and readiness
Get a real-time view of how your body is functioning by measuring key biomarkers like nitric oxide and pH—so you can better support endurance, focus, and recovery.
Simple, at-home performance testing
No blood. No needles. Just a quick saliva-based test you can do anywhere—delivering fast, real-time insights when they matter most.
Train smarter. Recover better.
Turn your results into clear, actionable insights to optimize workouts, improve recovery, and make confident decisions about activity and rest.
Choose Your Purchase Type
Single Purchase
$24.99
One Time Purchase includes 4 tests
Monthly Subscription
$19.99
Your monthly subscription includes X tests & free shipping
Free standard shipping on orders $50+
Free shipping on subscriptions
Secure CheckoutTaking your test is quick and simple. Follow the steps below for accurate results.
Your Quick Test Flow Guide
Download Instructions for Use
View detailed instructions and safety information.
Need help? Our support team is here to guide you.
Contact us at support@sparkdx.com
Watch How to Take the Test
See the step-by-step process before you begin.
Spark is changing thousands of lives
“Works like magic and the results are too quick!”
“Was hesitant but it worked really well”
“Works like magic and the results are too quick!”
“Was hesitant but it worked really well”
Customer Reviews
We're all about transparency. Read reviews by real people who use STIM Spark.
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Urvashi L
November 16, 2025
Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam, quis nostrud exercitation ullamco laboris nisi ut aliquip ex ea commodo consequat
Urvashi L
November 16, 2025
Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam, quis nostrud exercitation ullamco laboris nisi ut aliquip ex ea commodo consequat
Urvashi L
November 16, 2025
Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam, quis nostrud exercitation ullamco laboris nisi ut aliquip ex ea commodo consequat
Urvashi L
November 16, 2025
Benefits of Regular Testing
Why Testing Regularly Matters
One result is a snapshot. Patterns over time reveal more about your body.
Make Smarter Daily Decisions
Use personalized insights to better understand your body day to day.
Personalized Insights from Your Trends
Your data becomes clearer, more meaningful, and more actionable over time.
Why Testing Regularly Matters
One result is a snapshot. Patterns over time reveal more about your body.
Make Smarter Daily Decisions
Use personalized insights to better understand your body day to day.
Personalized Insights from Your Trends
Your data becomes clearer, more meaningful, and more actionable over time.
