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Daily evidence-led peptide research, regulatory news, expert digest and explainers. Every claim sourced; no AI tells.

Page 11

Vendor accountability

Tirzepatide Grey Market Risks and Quality

Counterfeit Mounjaro pens, compounded tirzepatide after the shortage ended, and FDA recalls: what regulators have found and what a COA cannot tell you.

12 Jun 2026 · PeptideMethods Editorial Team · 5 min read
Explainer

Semaglutide at 6 months: STEP trial data

Community posts report 80-90 lbs lost in six months on semaglutide. Here is what STEP trial data shows about timelines and plateaus.

12 Jun 2026 · PeptideMethods Editorial Team · 5 min read
Explainer

Semaglutide in teens: who responds best?

A real-world study asks which adolescents respond best to semaglutide for obesity, moving beyond the STEP TEENS trial into clinical practice.

12 Jun 2026 · PeptideMethods Editorial Team · 3 min read
Explainer

Semaglutide and beta-cell function in T1D

A 2026 case study reports preserved beta-cell function and stable blood sugar in a newly diagnosed type 1 diabetes patient treated with semaglutide.

12 Jun 2026 · PeptideMethods Editorial Team · 4 min read
Explainer

Semaglutide cut fentanyl seeking in rats

A 2026 rat study found that single doses of semaglutide prevented cue-, drug- and stress-triggered fentanyl seeking. Human trials are next.

12 Jun 2026 · PeptideMethods Editorial Team · 3 min read
Explainer

Semaglutide in HFpEF: German cost analysis

A German study finds semaglutide cost-effective for heart failure with preserved ejection fraction and obesity, with a five-year ICER of 30,443 EUR/QALY.

12 Jun 2026 · PeptideMethods Editorial Team · 3 min read
Explainer

Ketone esters spare muscle on semaglutide

A JCI Insight mouse study finds ketone ester co-treatment preserves skeletal muscle mass during semaglutide therapy without reducing fat loss.

12 Jun 2026 · PeptideMethods Editorial Team · 3 min read
Explainer

Semaglutide and Alzheimer's: EVOKE review

A new paper revisits the EVOKE trials and finds limited semaglutide signals at later timepoints, despite the primary endpoint failure at two years.

12 Jun 2026 · PeptideMethods Editorial Team · 3 min read
Explainer

Semaglutide weight loss: the trial data

STEP 5 shows 15% average weight loss sustained at two years. What the data says about body composition, eating behaviour, and stopping.

12 Jun 2026 · PeptideMethods Editorial Team · 5 min read
Explainer

Semaglutide resolves MASLD inflammation

A 2026 meta-analysis of 10 trials found semaglutide resolved steatohepatitis and cut liver fat in MASLD patients, but fibrosis improvement was not significant.

12 Jun 2026 · PeptideMethods Editorial Team · 3 min read
Explainer

Semaglutide and menstrual changes

Semaglutide users report heavier periods and cycle shifts. Here is what safety data and clinical research say about GLP-1 agonists and menstruation.

12 Jun 2026 · PeptideMethods Editorial Team · 3 min read
Explainer

Semaglutide eased RLS in Parkinson's case

A 2026 case report found that semaglutide improved treatment-resistant restless legs syndrome in one Parkinson's disease patient. The finding is preliminary.

12 Jun 2026 · PeptideMethods Editorial Team · 4 min read