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New — The Peptide Dictionary: 128 terms, explained simply
New guide — NAD+ for Anti-Aging: What the Science Says
New guide — GHK-Cu: the copper peptide for your skin
Not sure where to start? — A 60-second quiz points you to the path that fits your goal
New explainer — Semaglutide: what the research says, made simple
Browse — Peptide guides, made simple
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How peptides.io is made

peptides.io is written and edited by a small, independent editorial team, and reviewed by a practising physician. We don’t put invented names on our work. Where a named person writes, it is a real person with a real role here, and the page says what that role is.

Medical review

Dr. Dinesha Alstine, MD

Dr. Dinesha Alstine, MD

Medical reviewer · Longevity & preventive wellness

A physician trained at the Latin American School of Medicine in Havana and registered with the Medical Council of Guyana, Dr. Alstine spent her hospital years running maternity, emergency and outpatient services at Port Mourant Hospital. She reviews our articles for medical accuracy before they publish, and again at each update. Where she has reviewed a page, her name and the review date appear on it.

Read her full profile →

Writers

TJ Lee

TJ Lee

Managing Director, peptides.io

TJ Lee is the Managing Director of Peptides.io, where he is focused on making complex medical and scientific information easier to understand. His background spans technology, innovation, personal and professional development, and student mentorship. He also serves as an innovation advisor and university mentor, helping students build clarity, confidence, and direction in their careers and lives.

TJ is a strong believer in longevity and in the alignment of mind, body, and purpose. His writing often draws from his own health journey, personal experiences, and lessons learned along the way. He is not a medical professional, and his work is intended for education and personal perspective, not medical advice.

Read his profile →

How we work

Research first

Every guide starts with the studies themselves — FDA labels, PubMed, ClinicalTrials.gov — and cites them, so you can check what we say against the source.

Translated for regular people

We rewrite the science until someone with no background can follow it, without dumbing it down. What’s established, what’s early, and what’s marketing are always kept separate.

Checked by a doctor

A writer drafts, editors fact-check the sources, then Dr. Alstine reviews the medicine. Our guides are still educational and are not a substitute for your own clinician — treat a reviewed page as a better-informed start to that conversation, not the end of it.

Independent

We don’t sell, prescribe or ship peptides. We do sell an at-home blood test, and every article that mentions it says so. Some provider links are affiliate links; they never change a score or a recommendation. See our Editorial Policy and Advertiser Disclosure. The site is LegitScript-certified.

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