Ondansetron
4 mg · 4 mg as needed for nausea
$0/mo
In your stack
Full Protocol
Holistic Weight Loss
A clinician-guided protocol designed to support your holistic weight loss goals — with member pricing on every shipment.
This protocol supports
- Clinician-prescribed peptides matched to your goals
- Member pricing on every shipment
- Independently tested for purity and potency
- Ongoing physician support throughout your protocol
Protocol overview
Every protocol is reviewed and prescribed by a licensed clinician.
Customize your stack
Add or remove peptides to match your goals
Your base compound is always included. Toggle the supporting peptides below to build the stack that fits your goals — your cart updates in real time.
Semaglutide
2.5 mg/mL · 0.25-2.5 mg weekly
$59/mo
In your stack
Tirzepatide
16.6 mg/ml · 2.5-15 mg weekly
$69/mo
In your stack
How it works
1. Choose your clinician-approved protocol
2. Start your FREE member trial & save up to 70%
3. Complete your health assessment
4. When approved, your protocol ships overnight
Member reviews
What our members are saying
4.8/5 on Trust Pilot
Jenn, 48
“The clinician walked me through every option before I even started. I never felt like I was buying a product — I felt like I was joining a care team.”
Ben, 42
“Three months in and the energy is real. I'm sleeping deeper, recovering faster, and the labs are confirming what I'm feeling. Worth every penny.”
Common Questions
Safety
- Compounded in regulated U.S. pharmacies
- Medical-grade sourcing and quality controls
Medical Oversight
- Reviewed and prescribed by licensed clinicians
- Support available throughout your protocol
Personalized Approach
Your protocol is tailored to you — not fixed. Dosing, frequency, and duration are guided by your goals, your baseline and experience, and how your body responds over time. You’ll also receive guidance on when to adjust, cycle, or move into a maintenance phase.
FAQs
A structured course of clinician-selected peptides designed around a specific goal — longevity, recovery, sleep, or sexual function. Protocols include dosing guidance, check-ins, and adjustments.
Yes. Every CollectiveOS protocol is reviewed and prescribed by a licensed, board-certified physician after a short health assessment. Your medications are dispensed by a licensed US pharmacy.
Flat member pricing on every protocol, with no clinic markup. You see the exact product cost and the exact care fee, separately. Most members save up to 70% compared to retail pricing elsewhere.
Overnight from our US pharmacy partners, in temperature-controlled packaging when required. All orders ship discreetly with no identifying marks on the outer packaging.
Yes. Your membership is month-to-month and can be paused or canceled at any time from your account. No phone calls, no retention games.
Every batch is independently tested for purity, potency, and endotoxin levels. Certificates of Analysis are available on request for every product we ship.