Klean Antioxidant
Targeted antioxidant defense against training-induced oxidative stress.
$48.45Subscribe & save
The protocol, in your hands.
The same NSF Certified for Sport fuel and clinical-grade tools Dr. Petersen prescribes inside the program — available to order, refill, and track.
Parker Petersen — 195-lb wrestler to 320-lb NFL nose tackle on a physician-led protocol. Every product here is the same NSF Certified for Sport fuel behind that build.
In your Performance Portal
Your scale, synced to your dashboard.
Every Withings scale connects to your FirstCall Performance Portal, so each morning weigh-in lands in your dashboard right next to your Styku scans and physician protocol. You'll track markers a bathroom scale can't:
Body-fat & lean-mass trendsSegmental muscle balance (per-limb)Vascular ageResting heart rateBasal metabolic rate6-lead ECG & AFib*Blood oxygen · SpO₂*Nerve / stress-recovery*
*Advanced markers vary by model — 6-lead ECG, SpO₂, and nerve-response require Body Scan or BodyScan 2. Body Smart is included with every membership; upgrade to any model for the difference shown on each scale.
Frequently bought together
The core daily stack — build muscle, fuel training, and cover the gaps.
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Bundle total
$137.74
Klean Isolate · $61.27Klean Creatine · $32.77Klean Multivitamin · $43.70