GRN Labs Blood Flow Health Check

Check the signals that shape your blood flow health.

Answer 15 questions. See your baseline. Find the factors worth tracking first.

Takes 4 minutes. No login. No payment required.
Calculating

Weighting blood-flow signals.

Your Blood Flow Baseline

-- years

GRN educational vascular age estimate

Optimal High load

Top Drivers

Your full breakdown is ready. Enter your email to unlock it.

Because the number only means something once you know what's behind it.

Optional precision

Know your recent blood pressure?

A recent reading can sharpen this baseline. You can still continue without it.

Your score is ready.

One more step and you'll see exactly what's driving your score.

Please enter your first name.
Please enter a valid email address.

We use this to save your baseline. No ad targeting.

90-day blood flow plan

Your 90-day blood flow plan is ready.

Your estimate showed where your blood flow may need the most support. The plan starts with the factor pushing your score most.

Start with what is pushing your score most.

These are the factors that shaped your result. Start with the strongest one first.

What your plan unlocks

This is the full 90-day plan behind your score. Week 1 is only the starting point.

The dashboard gives you the full plan. This is where it starts.

Your first week is already mapped out.

Track the factors that matter for your profile.
Use your baseline to see what changed at day 90.

Checkout

Start with the plan that fits.

Unlock your 90-day blood flow plan and open your dashboard.

Secure checkout. Your dashboard opens after payment. Cancel any time.

Try it this week $8.99/week
Week to week, cancel any time

A low-friction way to start with your first week.

Start My Program $24.99/month
Save 30% vs weekly

A simple way to follow the plan for the first month.

Cancel any time. No questions asked.

Taking you to your protocol...

Your score is in. That number doesn't change on its own.

Your first week is ready now. Start with the plan built from your score.

$6.99/week

22% off your first week.

Keep the plan open for less this week.