Personal Care
New · Precision SmartStacks
Your body changes. Your supplements should too.
A daily pouch of 6–8 custom capsules, formulated specifically for your individual, unique biology — then re-optimized every month based on your updated health data. Because the stack that was right for February-you is wrong by July.
Build my stack
★★★★★
4.95 from Monthlees members
100+
Biomarkers deciphered
6-8
Daily capsules per pouch
1
Re-optimization each month
HOW IT WORKS
How Precision works in three easy steps
01 · 5 MINUTES
From guessing...
You answer 25 questions about your energy, sleep, digestion, and recovery. No blood draw required yet — just your honest answers about how you've been feeling. This alone gives the engine enough signal to build your first stack
02 · UPLOAD YOUR LABS
To knowing...
Your labs (Rythm Health or your own) unlock your advanced data-driven formula. The engine maps every result against a deterministic rule table — nothing LLM-hallucinated. Each biomarker steer that can steer a capsule in or out.
03 · 30 SECONDS
... to having a system.
Every month, your latest data re-runs through the engine. If something shifted, the engine proposes an update. Approve it in 30 seconds or keep your current stack. The system doesn't guess — it adapts.
SAY GOODBYE TO GUESSING
The old model: you research, you guess, you hope. With Precision, your data decides.
Every Precision capsule is conflict-checked — because calcium blocks iron absorption, and most multivitamins serve both to the same person without asking. Zinc competes with copper. Magnesium with calcium. These aren't rare edge cases — they're everyday interactions that your current stack is ignoring because nobody built it as a system.
And every capsule is conflict-checked against the rest of your pouch. No biochemical bar fights.
MONTH 1 —
First labs + survey
Deficiencies mapped. Engine proposes 8-capsule stack.
MONTH 2 —
Updated labs
Re-check shows improvement. Iron & glycine no longer deficient. Stack drops to 6 capsules.
MONTH 3 —
Update needed
Stress spike detected from survey alone. Glycine added back temporarily. System adapts before labs catch up.
MONTH 12 —
Annual review
D3: 18→56. Savings: $960 vs old cabinet. Stack is 5 capsules. Declined one proposal because member wanted to retest — system respected it.
Three things the supplement industry doesn't want you to know.
The math doesn't work. You're spending $140–$250/month on supplements picked from Reddit, influencer codes, and the GNC employee who asked you one question. Here's why none of it sticks:
LIE #1 —
"ONE MULTIVITAMIN FITS EVERYONE"
A single formula built for the statistical average of 300 million people. Your ferritin is low? Irrelevant. Your B12 is already high? Here's more anyway. You're paying for blanket coverage your body doesn't need.
LIE #2 —
"MORE IS BETTER"
Four bottles from four TikTok videos. Your magnesium and calcium are competing for absorption. Your zinc is canceling out your copper. Nobody checked — and you're not a one-person research department.
LIE #3 —
"IT WORKS FOREVER"
The stack that fixed your energy in January might be completely useless by July. Your stress rewired your cortisol. Your hormones shifted. But the bottles in your cabinet don't know that — they're still solving January's problem.
ONE POUCH. ONE PRICE. ZERO CABINET ARCHEALOGY.
You get one easy-to-take daily pouch - built for your unique biology.
Supplements are great - they're helpful for so many things. But half-used bottles accumulate fast, and before you know it, you have an entire cabinet full of things you may never need or use again - especially since your biology is constantly shifting.
Vitamin D3 (half-used)
$22
Grocery-Store Magnesium
$34
B-Complex (ran out, forgot to reorder)
$28
Ashwagandha
$32
Fish Oil (burps)
$31
Zinc (taking it with calcium — cancels out)
$29
Iron (taking it blind — no labs)
$17
Probiotic (fridge door, probably dead)
$49
Precision SmartStacks
$242
starts at $69.18/mo*
*Member rate — Precision is a Monthlees member benefit · price shown after your stack is formulated or updated · labs via Rythm Health or upload your own
It's time to get more precise.
Five minutes of questions. One optional lab draw or upload. A custom Precision SmartStack built for the body you have this month.
†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. Precision SmartStacks supports nutritional optimization and does not replace care from your clinician.
