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

Page 10

Explainer

Do GLP-1 drugs reduce fat graft survival?

A scoping review flags several mechanisms through which GLP-1 receptor agonists may reduce fat graft survival. No clinical data exist yet.

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

Ipamorelin 3x a day: what the evidence says

No human trial has tested a three-times-daily ipamorelin protocol. Here is where the idea comes from and what is missing from the evidence.

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

IWQOL-Lite-CT: trial vs real-world scores

Real-world adults with obesity score far worse on the IWQOL-Lite-CT than STEP 1 semaglutide trial participants. The instrument works, but baselines differ.

12 Jun 2026 · PeptideMethods Editorial Team · 3 min read
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