What we read.
What changed.
Explainers (free). News on real changes (paid). Corrections when we’re wrong (free). What we read this week (paid). Updates as we make them, dated, sourced.
- Explainer7 min · Free
How to evaluate any RUO peptide vendor.
We won't name vendors. We will tell you exactly what to check before you spend money on one. The 11-point checklist most peptide-Discord regulars run mentally before every order.
sourcingfield-guideruovendor-evaluation→ - Explainer5 min · Free
What an honest COA actually looks like.
A real Certificate of Analysis is a one-page document with five things on it. The fake ones are missing at least one. Here's how to tell at a glance.
sourcingfield-guidecoavendor-evaluation→ - Explainer6 min · Free
7 red flags in any peptide Telegram or Discord group.
Peptide chats are where group buys happen. They're also where scams happen. Pattern-recognition for the gray-market layer most beginners walk into blind.
sourcingfield-guidegray-marketvendor-evaluation→ - Explainer6 min · Free
How to run an ID test before you trust a vendor.
$80 of mass spec testing is the cheapest insurance in the protocol. Here's exactly how to send a sample, who to send it to, and how to read the result.
sourcingfield-guidevendor-evaluationtesting→ - Explainer5 min · Free
How to read a vendor's mass spec report.
A walkthrough of what each section of a mass spectrometry report means, where the lies hide, and how to validate the result against the published molecular weight.
sourcingfield-guidecoatesting→ - Explainer8 min · Free
How peptides actually get to your door.
The four-tier supply chain nobody publishes plainly. Brand pharmacy → 503A compounder → US RUO reseller → Discord/Telegram gray market. Same molecule, four prices, four risk profiles.
sourcingfundamentalsgray-market→ - Explainer4 min · Free
What the hell is a peptide.
Short answer: a small chain of amino acids your body uses as a signal. Long answer below.
fundamentalsnewbie→ - What we read5 min · Paid
We read 14 new studies this week. Three change something.
Tirzepatide vs Sema head-to-head update, retatrutide phase 3 readout interim, and a real signal on SS-31 in dry AMD.
weeklytirzepatideretatrutidess-31→ - News2 min · Paid
Lilly files orforglipron with the FDA.
The first oral GLP-1 with phase 3 evidence is now in front of the FDA. Decision likely H2 2026 or 2027.
glp-1orforglipronfda→ - News2 min · Paid
SS-31 (elamipretide) gets first FDA approval — Barth syndrome.
Stealth BioTherapeutics' Forzinity approved at 40mg/d. The first cardiolipin-targeting peptide to clear the FDA. Dry AMD is the bigger prize.
ss-31fdarare-disease→ - Correction1 min · Free
We were wrong about CJC-1295 dosing.
Original page said 100mcg 3×/wk. The published Teichman 2006 PK paper used a single 60mcg/kg dose. Math fixed.
cjc-1295dosing→ - News3 min · Free
MK-677 phase 2b CHF signal confirmed in re-analysis.
Pooled analysis of two terminated trials shows 6.5% vs 1.7% heart-failure incidence at 25mg/d. We've added a stronger flag to the MK-677 page.
mk-677safetyghs→ - News3 min · Free
Semaglutide compounding fully restricted — final FDA enforcement.
503A pharmacies got 60-day notice. Compounded sema effectively dead in the US for personal-use scripts. Tirzepatide compounding still in safe-harbor.
semaglutidecompoundedfdaindustry→ - News3 min · Paid
TRIUMPH-3 retatrutide 12mg confirmed at 88-week primary endpoint.
24.4% mean weight loss at 88 weeks. The 12mg arm holds. Lilly will submit obesity NDA in Q3 2026.
retatrutidephase-3glp-1→
The journal is free. The reports are $19.
Every post here links into a peptide deep-dive. $19 per peptide for the full report — mechanism, evidence, dose, sourcing, safety, editorial position — or $29/mo for all of them plus the OS.
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