Peptides, explained from the studies up
Long-form explainers written from cited primary sources. Each one reports what trials measured and what regulators have said; none of them tells you what to take.
- 01 · September 14, 2026
What are peptides? A plain-English explainer
Short chains of amino acids, from insulin to collagen powder to the injectables in the news. What the word covers, why the same word means very different things, and how to read a peptide study.
basicsglp-1healing-repairskin-hair - 02 · September 14, 2026
Peptides for weight loss: what the trials actually measured
Semaglutide, tirzepatide, retatrutide, and cagrilintide have large randomized trials. Most other 'weight loss peptides' do not. Here is what each trial enrolled, dosed, and found, including what happens after stopping.
glp-1mitochondrialweight-loss - 03 · September 14, 2026
Peptide injections: why peptides are injected, and what the trials report about it
Why almost every therapeutic peptide is a shot rather than a pill, what subcutaneous injection involves, the injection-site reactions trials recorded, and why sterility and dosing units are where real harm happens.
basicssafetyglp-1 - 04 · September 14, 2026
How lyophilized peptides are reconstituted, and where it goes wrong
The freeze-dried powder, the diluent, the math, and the failure modes: contamination, wrong diluent, unit confusion, and degradation. Technique only; no doses.
basicssafetytools - 05 · September 14, 2026
How much does peptide therapy cost?
Brand-name GLP-1s, compounded prescriptions through a telehealth program, in-person clinics, and research-chemical vendors sit at very different price points, for very different things. What drives the numbers and what the trials say about how long treatment lasts.
costglp-1telehealth - 06 · September 14, 2026
Are peptides legal? Approved drugs, compounding, and 'research use only' in 2026
Three legal categories that get lumped together: FDA-approved peptide drugs, compounded peptides prescribed under section 503A, and research chemicals sold 'not for human use.' What changed in 2026, what FDA is enforcing, and why the answer depends on the compound.
legalregulatorysafety