PTW Research Hub
The home base for everything Portal to Wellness publishes on peptide and wellness-compound research — featured studies, FDA and regulatory tracking, and every topic area in one place. All content is for research purposes only and is not intended to diagnose, treat, cure, or prevent any disease.
Try a compound name (e.g. “BPC-157”), a product, a research guide, or a research topic.
Featured Article
FDA Warning Letters Hit GLP-1 Telehealth Marketing: What the 2026 Crackdown Means
A breakdown of the FDA’s latest enforcement action against GLP-1 telehealth marketing claims — what changed, why it matters for anyone following this space, and what it signals about where regulatory scrutiny is headed next.
Latest Research
FDA & Regulatory Updates
Tracking the policy and regulatory landscape around peptide and GLP-1 research — for informational purposes only, not legal or medical advice.
- What Determines Regulatory Status
- What the FDA’s July Peptide Meeting Actually Means: 5 Things Every Researcher Should Understand
- FDA Is Reviewing Popular Peptides: What Researchers Should Know Before the July 23–24 Advisory Meeting
- Medicare Is Covering GLP-1s for Weight Loss: What This Means for the Future of Obesity Care
Most Read
Editorially curated for now — we’ll switch this to real traffic data once analytics reporting is connected.
- NAD+ Explained: What It Is, Why Levels Decline, and What the Science Actually Says
- Recovery & Repair Research Compounds: A Complete Guide
- BPC-157: What the Preclinical Research Actually Shows
- Semax, Selank & Pinealon: What the Research Shows About Nootropic Peptides
- Thymosin Alpha-1 & LL-37: What the Research Says About Immune-Modulating Peptides
- DSIP & Epithalon: What the Research Says About Sleep and Circadian Peptides
Browse by Topic
Metabolic & GLP-1
Sleep & Regeneration
Cognitive
Research Guides
Structured research guides organized by goal, built from the Research Library’s compound-level findings.
Video Library
Coming soon. We’re building out video breakdowns of key research to pair with the written Research Library — check back soon.
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Complete index
Every research article and guide we have published, newest first.
Research Library
The Science Behind the Compounds
Literature summaries organised by compound and mechanism.
GHK-Cu: Fibroblast Gene Expression Studies
GHK-Cu is the most studied peptide for collagen synthesis research — not a collagen protein itself, but a signaling peptide shown to upregulate collagen I/III gene expression in fibroblast studies.
Minoxidil and Dutasteride: Mechanism Overview
Evidence & Research Status Evidence LevelPreclinical / Early-Stage Research FDA StatusNot FDA-approved for human use Regulatory StatusResearch Use Only (RUO) […]
Mitochondrial Peptide Comparison: SS-31, MOTS-c, and NAD+
Evidence & Research Status Evidence LevelEmerging Human Research FDA StatusNot FDA-approved for human use Regulatory StatusResearch Use Only (RUO) — […]
Evidence & Research Status Evidence LevelExtensive Human Clinical Data FDA StatusNot FDA-approved for human use Regulatory StatusResearch Use Only (RUO) […]
Incretin and Growth-Hormone-Axis Compounds in the Literature
How GLP-1/GIP/amylin compounds relate to growth-hormone-axis, myostatin-pathway, and mitochondrial-support peptides in published research – including the BELIEVE trial data on muscle preservation. Research Use Only.
GLP-1 Additives: What a New JAMA Study Found
Evidence & Research Status Evidence LevelExtensive Human Clinical Data FDA StatusNot FDA-approved for human use Regulatory StatusResearch Use Only (RUO) […]
Obesity Subtype Predicts Tirzepatide Response
Evidence & Research Status Evidence LevelExtensive Human Clinical Data FDA StatusNot FDA-approved for human use Regulatory StatusResearch Use Only (RUO) […]
Semaglutide: Mechanism, Clinical Trial Data & Research Guide
Semaglutide is a GLP-1 receptor mono-agonist, FDA-approved as Ozempic, Wegovy, and Rybelsus for prescription human use. This research guide covers its mechanism, STEP/SELECT trial data including the SELECT cardiovascular outcomes trial, tolerability findings, and how it compares to tirzepatide and retatrutide. Research Use Only.
Tirzepatide: Mechanism, Clinical Trial Data & Research Guide
Tirzepatide is a dual GIP/GLP-1 receptor agonist, FDA-approved as Mounjaro and Zepbound for prescription human use. This research guide covers its mechanism, SURPASS/SURMOUNT trial data, tolerability findings including the ongoing SURMOUNT-MMO outcomes trial, and how it compares to semaglutide and retatrutide. Research Use Only.
Wegovy Pill Total Monthly Cost, Explained
Evidence & Research Status Evidence LevelExtensive Human Clinical Data FDA StatusNot FDA-approved for human use Regulatory StatusResearch Use Only (RUO) […]
Evidence & Research Status Evidence LevelExtensive Human Clinical Data FDA StatusNot FDA-approved for human use Regulatory StatusResearch Use Only (RUO) […]
Biomarkers vs Clinical Outcomes in Research
Evidence & Research Status Evidence LevelEmerging Human Research FDA StatusNot FDA-approved for human use Regulatory StatusResearch Use Only (RUO) — […]
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Every guide maps to a specific compound or stack available in the PTW catalog.
Browse by research area and find what your research guide is missing.
All products and research referenced on this page are sold strictly for research use only (RUO). Nothing on this page has been evaluated by the FDA and none of it is proven safe or effective in humans. Content is for informational purposes only and is not medical, legal, or dosing guidance.