Eight GLP-1 programs publish verified outcome-based money-back guarantees as of April 2026 — Eden, SHED, Brightmeds, Fella Health, RemedyMeds, Calibrate, Aayu Well, and LifeMD — each with 6–12 month windows and structured adherence requirements. PlexusDx does not offer an outcome guarantee but prices flat with no membership and no required commitment, so risk is bounded by one month of cost rather than by a 6–12 month adherence schedule.