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

Page 84

Explainer

Microdosing tirzepatide: what we know

No trial has tested tirzepatide below 2.5 mg. A 2026 Obesity commentary examines the growing practice of KwikPen microdosing.

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

Oral semaglutide dropout rates in Japan

A Japanese database study found that high HbA1c and concurrent metformin use predicted early discontinuation of oral semaglutide at the 3 mg starting dose.

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

"Ozempic Face" Prevention: A New Risk Model

A 2026 paper proposes an anatomy-driven risk model and four-phase prevention algorithm for GLP-1-associated facial aging.

12 Jun 2026 · PeptideMethods Editorial Team · 4 min read
Vendor accountability

BPC-157 Grey Market Risks and Quality

BPC-157 is sold online with no regulatory oversight. What COA testing can and cannot tell you about identity, purity, and contamination.

12 Jun 2026 · PeptideMethods Editorial Team · 6 min read
Vendor accountability

PT-141 Grey Market Risks and Quality

Grey-market PT-141 vials lack the controls of FDA-approved Vyleesi. What COA testing reveals about identity, purity, and contamination.

12 Jun 2026 · PeptideMethods Editorial Team · 6 min read
Vendor accountability

Retatrutide grey market risks

Retatrutide is unapproved and ineligible for compounding. Grey-market vials carry identity, purity, and contamination risks.

12 Jun 2026 · PeptideMethods Editorial Team · 6 min read
Vendor accountability

Semaglutide Grey Market Risks and Quality

Counterfeit Ozempic, compounded semaglutide salt forms, and dosing errors: what regulators have found and what a COA cannot tell you.

12 Jun 2026 · PeptideMethods Editorial Team · 5 min read
Vendor accountability

Semax Grey Market Risks and Quality Testing

Semax is sold online with no regulatory oversight outside Russia. What COA testing reveals about identity, purity, and contamination.

12 Jun 2026 · PeptideMethods Editorial Team · 6 min read
Vendor accountability

Tesamorelin Grey Market Risks and Quality

Tesamorelin is FDA-approved only for HIV lipodystrophy. Grey-market vials sold for off-label use carry identity, purity, and contamination risks.

12 Jun 2026 · PeptideMethods Editorial Team · 6 min read
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