Peptide news,
decoded.

Research breakdowns, protocol guides, and the latest in peptide science, written to cut through the noise.

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Featured · Peptide Basics

What are peptides? A beginner's guide to how they work

A plain-English primer on what peptides are, the categories they fall into, and why scientists study the tiny messengers your body makes every day.

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DILUENT
Practical

Bacteriostatic water, sterile water, and saline are not interchangeable.

One of the three is built for a vial you open more than once. The other two are not, and the labels say so in language most people never read.

3 September 2026 · 6 min read
U-100
Practical

How to read insulin syringe units without guessing.

The barrel is marked in insulin units, not millilitres. For a peptide those numbers mean volume and nothing else, and the difference is where the tenfold mistakes live.

3 September 2026 · 7 min read
MCG
Practical

Why your peptide dose looks so small.

Because a microgram is a millionth of a gram, and almost everything you can see in the barrel is water you added yourself.

3 September 2026 · 5 min read
2-8 °C
Practical

Peptide storage: fridge, freezer, or room temperature.

Sealed powder and a reconstituted vial are two different problems, and most advice online answers them as though they were one.

3 September 2026 · 6 min read
503A
Regulatory

The PCAC voted six peptides onto the 503A list. What happens next.

The committee recommended six of seven, against the advice of FDA's own reviewers. Every vote was close, none of them are binding, and nothing on the 503A list has changed yet.

26 August 2026 · 9 min read
GLP-1
Metabolic

Semaglutide vs. Tirzepatide vs. Retatrutide: what the data says

How the leading GLP-1 medications compare on weight loss, mechanism, and side effects.

15 October 2026
Recovery
Recovery

BPC-157 & TB-500: the research behind the recovery stack

What the preclinical literature actually shows about the most popular healing peptides.

15 October 2026
Labs
Education

How to read your bloodwork like a longevity nerd

The biomarkers that matter, what they mean, and how to track them against your protocol.

15 October 2026
Sleep
Sleep

Peptides for sleep: DSIP, Epitalon, and the growth axis

Which peptides are studied for deeper sleep, and how sleep drives recovery.

15 October 2026
Longevity
Longevity

NAD+, MOTS-c, and the cellular energy stack

The science of mitochondrial peptides and what they mean for healthspan.

15 October 2026
Safety
Safety

Sourcing, purity, and testing for research peptides

What a certificate of analysis covers, what third-party testing adds, and where a licensed provider fits in.

15 October 2026
Research
Research

How to research a peptide stack before you combine anything

Almost no combination has been studied together. What to read, what to ask, and what to measure first.

15 October 2026

Keep reading

The research guides go deeper: GLP-1 clinical trials, GLP-2, peptide policy and health guides.

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