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Head-to-head evidence comparison — which supplement is right for you?
Semaglutide and Tesamorelin are closely matched across evidence, studies, and safety.
Verdict
Mostly mechanism / observational
Top outcomes
Verdict
Mostly mechanism / observational
Top outcomes
Shared outcomes (1)
Outcomes where both Semaglutide and Tesamorelin have evidence — compare verdict strength side-by-side.
Prescription-only, clinician-titrated. Subcutaneous (Wegovy weight management: escalate to 2.4 mg once weekly; Ozempic diabetes: 0.5-2.0 mg once weekly). Oral (Rybelsus diabetes: 3-14 mg once daily). DO NOT self-dose.
any
Subcutaneous once-weekly injection (Ozempic / Wegovy)
Approved regimen (Egrifta, HIV-associated lipodystrophy only): 2 mg once daily by subcutaneous injection. This is a prescription drug — the dose, indication and monitoring are set by a prescriber. The cognition RCT used a lower 1 mg/day. There is NO validated dose for off-label 'anti-aging' or physique use, and any such use is outside the evidence base.
any
Egrifta / Egrifta SV (prescription, via a clinician)
Weeks to months
Months (titrated over 16-20 weeks)
Months to years
Especially during dose escalation
26-52 weeks
6-12 months
Within months of stopping
20-24 weeks
Once-Weekly Semaglutide in Adults with Overweight or Obesity (STEP 1).
N Engl J Med (2021) · Rct · n=1961
Double-blind RCT in 1,961 adults with obesity/overweight WITHOUT diabetes, randomized 2:1 to subcutaneous semaglutide 2.4 mg/week or placebo plus lifestyle for 68 weeks
Semaglutide and Cardiovascular Outcomes in Obesity without Diabetes (SELECT).
N Engl J Med (2023) · Rct · n=17604
Large cardiovascular-outcomes RCT: 17,604 patients with preexisting cardiovascular disease and overweight/obesity but WITHOUT diabetes
Semaglutide and Cardiovascular Outcomes in Patients with Type 2 Diabetes (SUSTAIN-6).
N Engl J Med (2016) · Rct · n=3297
Pre-approval cardiovascular-safety RCT in 3,297 patients with type 2 diabetes at high cardiovascular risk, semaglutide (0.5/1.0 mg/week) vs placebo for 104 weeks
Effects of tesamorelin (TH9507), a growth hormone-releasing factor analog, in human immunodeficiency virus-infected patients with excess abdominal fat: a pooled analysis of two multicenter, double-blind placebo-controlled phase 3 trials with safety extension data.
J Clin Endocrinol Metab (2010) · Rct · n=806
Pooled analysis of two multicenter, double-blind, placebo-controlled phase-3 RCTs (n=806 ART-treated HIV patients with excess abdominal fat), randomized 2:1 to tesamorelin 2 mg or placebo subcutaneously daily
Effects of tesamorelin, a growth hormone-releasing factor, in HIV-infected patients with abdominal fat accumulation: a randomized placebo-controlled trial with a safety extension.
J Acquir Immune Defic Syndr (2010) · Rct · n=404
12-month phase-3 RCT in 404 ART-treated HIV patients with excess abdominal fat; randomized 2:1 to tesamorelin 2 mg sc daily or placebo, then rerandomized at 6 months
Long-term safety and effects of tesamorelin, a growth hormone-releasing factor analogue, in HIV patients with abdominal fat accumulation.
AIDS (2008) · Rct · n=410
26-week safety-extension RCT (n=410) of the phase-3 program; tesamorelin 2 mg vs placebo subcutaneously daily, with rerandomization at week 26
Both Semaglutide and Tesamorelin are closely matched — the best choice depends on your specific health goals.
No known interactions between Semaglutide and Tesamorelin have been documented in our database. However, always consult a healthcare provider before combining supplements.