As you age, your nitric oxide declines
It's the molecule that protects your body as we age, yet it halves by age 40.
Optimise your NONitric oxide is the foundational molecule for HEALTH.
More nitric oxide means more blood, oxygen and energy reaching every part of you.
One molecule. Hundreds of functions.
Heart
Healthy circulation & blood pressure
Energy
Oxygen to every muscle
Brain
Clarity & focus
Defence
Antioxidant & immune support
Less nitric oxide by the time you're 40.
Healthy NO levels are foundational. All other supplements come second to optimising NO. Without healthy NO levels your body will never respond as you wish.
As nitric oxide falls, disease takes over.
Test. Optimise. Support.
Three steps, one a day. Pick where you start — either way, you'll know your numbers.
Test Strips
A 15-second saliva strip shows where you stand.
- Know your nitric oxide baseline
- 15-second saliva test
- Affordable one-time purchase
Test Strips + Ultimate 4
One scoop daily rebuilds your nitric oxide.
- 30 daily serves of Ultimate 4
- Test strips to track your rise
- Four NO pathways, therapeutic doses
Test Strips + Ultimate 4 + Boost
Add Boost to lock in long-term results.
- Everything in Ultimate 4
- Boost for daily support
- The complete optimal protocol
Vegetarian · 100% natural · update or cancel anytime · fast global shipping
What's inside — and what it does.
No proprietary blends, no fillers, no synthetic vitamins or minerals. Just the building blocks your body uses to make and protect nitric oxide.
Standardised to 360 mg dietary nitrates, which generates 350–400 mg/L nitric oxide in the blood.
The only NO formula you can measure.
Watch your saliva strip climb toward the optimal range as Ultimate 4 goes to work.
Aim for 220–435 mg/L, sweet spot ≈ 350. Below 110? It's time to act.
Rediscover energy levels from your YOUTH.
Rebuild the one molecule you can actually bring back — and feel the difference.
People who tested, then felt it.
"I'd accepted feeling flat as getting older. Three weeks in, my strip jumped two whole bands. The energy is back."
"Being able to measure it sold me. Watching my number climb toward 350 makes it feel real."
"Proper doses, not a token sprinkle. My morning walk doesn't leave me winded anymore."
The Butterworth Method"I built Ultimate 4 for myself — to fix the one change I saw in everyone after 40: declining nitric oxide. Real results, not hype."
Stop accepting the slow fade.
Test your level, optimise with Ultimate 4, and bring your nitric oxide back.
Optimise your NO