01 · The number
60% of the weight you lost on GLP-1 comes back within a year of stopping.
A May 2026 Cambridge meta-analysis pooled discontinuation cohorts across semaglutide and tirzepatide trials and found patients regain an average of 60% of their initial weight loss in the 12 months after stopping the medication. Regain plateaus around 75% — meaning roughly 25% of the original loss is maintained without behavioral support.
The analysis didn’t say the drugs failed. It said the pattern underneath the appetite stayed live. Quiet on the medication. Loud again the day the shot wears off.
02 · The four rebound patterns
The shot got quiet differently for different people.
The 60-second regain risk quiz places you in one of four rebound families. Each one is a specific moment, a specific script, and a specific interrupt window — the exact 3 seconds COYL fires in.
01 · Night Rebounder
The 9 PM kitchen, after the appetite came back.
The shot is wearing off by 9 PM and your hand is in the freezer before your brain catches up. The negotiation sounds reasonable. It always sounded reasonable.
Highest risk: 9:00 PM – 11:30 PM
02 · Weekend Rebounder
Five clean days, one collapse Saturday.
Monday through Friday the structure holds. Saturday afternoon the schedule disappears and the script returns — the brunch order, the delivery app, the 'I deserve this' sentence.
Highest risk: Saturday 14:00 – Sunday 23:00
03 · Stress Rebounder
The work-week the appetite leaked through.
The shot keeps hunger quiet until something hard happens — a presentation, a fight, a deadline. Then the script doesn't ask permission; it just runs.
Highest risk: stress event + 2 hours
04 · Reward Rebounder
The 'I earned this' loop that never stops.
You finished something hard, or hit a number on the scale, or got through a tough week. The reward language is the rebound — and the shot doesn't catch it.
Highest risk: 60-120 minutes after a perceived win
03 · How Rebound works
The shot did the appetite work. We do the pattern work.
01 · Detect
Learn your rebound window.
The quiz pins your highest-risk hour, the day-of-week shape of your collapse, and the script your autopilot runs. Updates weekly as the pattern moves.
02 · Interrupt
One push in the 3-second window.
At 9:32 PM, when the negotiation starts, COYL fires a single specific interrupt — not a reminder, not a check-in. The sentence that names the script before it runs.
03 · Recover
Same-night re-entry. No streak reset.
If the slip happens, COYL doesn't punish — it routes you through the three stabilize actions (water, walk, planned next meal) and keeps the streak alive.
04 · Pricing
Less than one regain week.
For you
Rebound
$29/mo
or $199 / year — commit to the year
- Regain Risk Quiz + your rebound archetype
- Unlimited interrupts at your highest-risk window
- Same-night recovery engine
- Weekly pattern report — track the rebound shape
- GLP-1 maintenance protocol drafted with the Found Health study panel
For your clinic
Rebound for Clinics
$12–18 PMPM
GLP-1 prescribers + telehealth + medspas
- Patient invite flow + clinician dashboard
- Aggregate cohort retention + regain signals
- HIPAA-compliant integration with your EMR
- First 25 patients free during pilot
- Co-branded enrollment material
04b · For GLP-1 prescribers
Your patients lose weight on the shot. COYL keeps it off after.
60% of weight loss returns within a year of discontinuation (Wilding et al., 2022, Diabetes Obes Metab). The shot suppresses appetite while it’s active. COYL trains the behavioral pattern that holds the loss after the prescription ends.
Free for providers
Clinician dashboard, BAA, white-label enrollment material — no seat fee. First 25 patient seats free during your pilot.
Patient-side billing
$12–18 PMPM via patient direct-billing OR your clinic’s PBM. EMR webhook integration (Athena, Epic, Elation, Healthie).
What you see
Aggregate cohort retention. Per-patient slip frequency. Same- night recovery rate. Regain signals 6+ weeks before scale data would show it.
05 · What this is, and what it’s not
Behavioral support — not medical treatment.
COYL Rebound is a behavioral support tool for people taking or tapering off GLP-1 medications. It is not a substitute for medical advice, prescription decisions, or clinical care. Talk to your prescriber about dosing, taper schedule, and any health concerns. COYL works alongside the medication, not in place of it. Full safety statement at /safety.
The shot quiets hunger. COYL trains the pattern that keeps the weight off.