Peptide science
Collagen peptides: what the research shows
How collagen peptides are absorbed, what randomised trials report for skin, joints, tendons and muscle, and where the evidence is weakest.
Guide library
Every peptide and longevity guide, in one place.
Plain-language breakdowns of the published research — peptides, metabolic medicine, performance, recovery and longevity. Each guide cites the studies it is built from.
Educational only. Nothing here is medical advice, dosing guidance, or a product recommendation.
Get the weekly research dispatch
One email. New peer-reviewed research, distilled. No spam, unsubscribe in one click.
Instagram bio link
Use this tagged address in your profile so bio visits show up separately from individual post links.
https://reboundscience.com/guides?utm_source=instagram&utm_medium=bio&utm_campaign=profile_bioFrom your Instagram bio
—
visits, updating live every 30 seconds
From Instagram posts
—
visits from carousel links, per-post breakdown in your review page
Peptide science
Tesamorelin: benefits, evidence and safety
The FDA-approved peptide without the anti-aging hype: its specific use in HIV lipodystrophy, effects on visceral and liver fat, safety warnings and unanswered questions.
Metabolic science
Retatrutide research: what the trials have actually shown
The phase 1 and phase 2 trials, the triple-agonist mechanism, safety signals, the phase 3 programme and the gaps the data cannot fill.
Metabolic science
What is GLP-1?
The gut hormone behind the biggest story in metabolic medicine: how it signals appetite and blood sugar, what the large trials found, and the open questions.
Metabolic science
What is retatrutide?
The investigational triple agonist behind the largest weight reductions reported in a metabolic trial: how it works, what phase 2 showed, and what is still unknown.
Performance & recovery
What is creatine?
The most studied sports supplement, examined honestly: how it works, the strength and power research, the brain evidence, safety and the myths.
Longevity science
Rapamycin and longevity
The most reproducible lifespan extender in animal research: mTOR biology, the mouse studies, how thin the human evidence still is, and the known risks.
Performance & recovery
What is Zone 2 cardio?
The science of low-intensity training: how heart rate zones work, what the research says about mitochondrial health and longevity, and how to find your own Zone 2.
Peptide science
BPC-157 benefits: what the research actually shows
The most searched peptide on the internet, examined honestly: the animal evidence for tissue repair and gut health, the mechanisms, and the absence of human trials.
Peptide science
What are peptides?
A plain-language explainer: what peptides actually are, how they signal in the body, the main classes under study, and how to read peptide research critically.