The ExaBlog

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Peer-reviewed education written for practitioners. Updated regularly.

Peer-Reviewed SourcesUpdated RegularlyWritten for Practitioners

Wharton's Jelly as an MSC Source: Why Tissue Origin Determines Secretome and Vesicle Cargo

A chemist-authored review of Wharton's jelly as a mesenchymal stromal cell source: perivascular anatomy, donor-age advantage, HLA-DR negative immunophenotype, comparative secretome proteomics, extracellular vesicle biophysics, and the sourcing questions that separate a characterized product from an unverified one. 24 annotated sources.

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Wharton's JellyMSC SourcingExtracellular VesiclesMISEV 2023Supplier Due DiligenceUmbilical Cord

Regenerative Science

Regenerative Science17 min read

Wharton's Jelly as an MSC Source: Why Tissue Origin Determines Secretome and Vesicle Cargo

Updated July 2026Read →

Regenerative Science8 min read

Exosomes vs PRP: A Research Comparison for Practitioners

A side-by-side review of MSC-derived exosomes and platelet-rich plasma mechanism differences, evidence base, regulatory frameworks, and practical sourcing considerations for licensed clinicians.

Updated March 2026Read →

Regenerative Science8 min read

What Are Exosomes? A Clinician's Guide to MSC-Derived Biologics

A structured primer on exosome biology for licensed practitioners: biogenesis, cargo composition, MSC source differences, manufacturing standards, and regulatory framing for clinical use.

Updated March 2026Read →

Regenerative Science7 min read

Exosomes and Aesthetic Medicine: The Science Behind the Buzz

What peer-reviewed literature actually says about exosomes in aesthetic medicine: from exosome sourcing to the clinical trial landscape, and smart questions to ask your practitioner.

Updated March 2026Read →

Hormone Optimization

Hormone Optimization16 min read

Peptides Alongside Testosterone, Estradiol, and Progesterone: A Mechanism-Based Review

A mechanism-based literature review for licensed prescribers on how peptides interact with testosterone, estradiol, and progesterone protocols. Covers the GH/IGF-1 axis, HPG feedback, central desire circuitry, and documented pharmacokinetic interactions. 26 cited sources.

Updated July 2026Read →

Hormone Optimization14 min read

503A Compounded Hormone Optimization: A Chemist's Guide to Supply Chain Integrity for HRT Clinics

A chemist-authored guide to 503A compounded HRT supply chain integrity covering testosterone, estradiol, progesterone, and growth hormone secretagogues. Peer-reviewed citations included.

Updated April 2026Read →

Longevity Medicine

Longevity Medicine8 min read

Peptides and Exosomes in Concierge Longevity Medicine: How Combination Protocols Work

A practitioner-focused look at how concierge and longevity clinics approach peptide and exosome protocols: the science, the 503A/503B sourcing pathways, the research-use-only status of exosomes, and the compliance guardrails every program needs.

Updated July 2026Read →

Pharmacy Regulations

Pharmacy Regulations7 min read

2026 FDA 503A Peptide Category Changes: What Concierge and Longevity Clinics Need to Know

The FDA’s evolving review of bulk drug substances is reshaping which peptides 503A pharmacies can compound. A practitioner-focused guide to the category framework, what changed heading into 2026, and how to keep a peptide program compliant.

Updated July 2026Read →

Pharmacy Regulations8 min read

GLP-1 and Compounded Peptides After the 2026 503A Shakeup: What Clinics Should Know

When the GLP-1 shortage ended, the compounding rules changed with it. How shortage status, the 503A/503B distinction, and the 2026 peptide category review together determine what a clinic can and cannot compound.

Updated July 2026Read →

Pharmacy Regulations5 min read

503A vs. 503B Compounding Pharmacies: What's the Difference and Why Does It Matter?

Learn the key differences between 503A and 503B pharmacies, FDA oversight, office-use rules, and why this distinction made national news during the GLP-1 shortage.

Updated March 2026Read →

Regulatory & Compliance

Regulatory & Compliance7 min read

Is Exosome Therapy FDA-Approved? The 2026 Legal and Compliance Landscape

A clear, current answer to the question clinics and patients ask most: are exosome products FDA-approved? Covers the regulatory status, the research-use-only distinction, and how to describe exosomes without crossing a claims line.

Updated July 2026Read →

Practice Growth

Practice Growth8 min read

Adding a Regenerative Medicine Service Line to a Concierge Practice: A Compliance-First Playbook

A practical, compliance-first guide for concierge and longevity practices evaluating a regenerative service line: how to scope offerings, source responsibly, structure consent and marketing, and build a program that holds up to scrutiny.

Updated July 2026Read →

Practitioner Guides

Practitioner Guides14 min read

The CuraCator™ Clinical Method: Advancing PRP and Biologic Delivery in Medspa and Dermatology Practices

A chemist-authored clinical review of PRP application science, microchannel delivery biophysics, and the CuraCator Clinical Method for medspa and dermatology practices. Covers platelet activation, growth factor release kinetics, delivery depth, and the evidence base for combining PRP with microchannel protocols.

Updated May 2026Read →

Practitioner Guides29 min read

How to Evaluate an Exosome Supplier COA: A Chemist's Guide

What licensed practitioners should look for on a Certificate of Analysis when sourcing biomolecular signaling vesicles for med spa, dermatology, and clinical trial applications. The biology, the markers, the cargo, and the documentation that separates a research-grade product from one that probably should not be entering a treatment room.

Updated May 2026Read →

Practitioner Guides12 min read

Peptide Therapy and Oncological Risk: A Prescriber's Framework

A mechanism-based framework for selecting peptide therapies in patients with elevated cancer risk, family history of malignancy, BRCA mutations, or elevated tumor biomarkers. Includes green, yellow, and red risk stratification with pre-screening protocols.

Updated April 2026Read →

Practitioner Guides8 min read

PRP Kit Buying Guide for Clinicians: What to Evaluate

A practitioner-facing review of centrifuge protocols, platelet yield, leukocyte content, closed vs open systems, activation methods, and supplier due diligence for in-office PRP preparation.

Updated March 2026Read →

Orthopedics

Orthopedics12 min read

PRP Kit Selection for Orthopedic and Sports Medicine Practices: A Chemist's Guide to Closed-System Integrity, Anticoagulant Selection, and Centrifuge Parameters

A chemist-authored review of closed-system PRP kit architecture, ACD-A anticoagulant chemistry, gel separator selection, centrifuge parameters, leukocyte content, and 503A research peptide regulatory status for orthopedic and sports medicine practices.

Updated April 2026Read →

Regulatory Science

Regulatory Science11 min read

Stem Cell Sourcing for Florida Clinics: The Current Landscape

What Florida physicians need to know about stem cell sourcing under SB 1768, FDA 21 CFR Part 1271, cGMP requirements, and supply chain documentation standards.

Updated April 2026Read →

Precision Medicine Research

Precision Medicine Research9 min read

When Genomics Meets Regeneration: How AI-Driven Precision Medicine Is Redefining Cell Therapy

A peer-reviewed overview of how AI, multi-omics profiling, and genomic data are converging to enable personalized cell therapy and precision regenerative medicine protocols for licensed practitioners.

Updated April 2026Read →

Dermatology Research

Dermatology Research9 min read

Exosome Therapy in Dermatology: A Research Overview for Clinicians

A practitioner-facing review of MSC-derived exosome research in dermatology skin biology, post-procedure application context, and supplier due diligence for licensed practitioners.

Updated March 2026Read →

Hair Restoration Research

Hair Restoration Research7 min read

Exosomes for Hair Restoration: What the Research Says

A clinician-facing review of MSC-derived exosome research in hair restoration, follicle biology, Wnt/beta-catenin signaling, comparisons with PRP, and supplier due diligence for licensed practitioners.

Updated March 2026Read →

Aesthetic Science

Aesthetic Science6 min read

Topical Exosome Treatments: The Science Behind the Aesthetic Protocol

What peer-reviewed literature says about topical exosome application in aesthetic clinics: vesicle characterization, delivery mechanisms, protocol design, and what to look for in a compliant supplier.

Updated March 2026Read →

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Go Deeper

Beyond the blog: practitioner sourcing guides and detailed regulatory references.

Sourcing Guide

Exosome Sourcing for Clinics

COA requirements, analytical characterization standards, supplier red flags, and quality benchmarks.

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Regulatory Guide

503A & 503B Compounding

Full compliance guide for clinic sourcing of compounded medications.

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Science

Explore the Science

Interactive 3D exosome explorer, publications database, and mechanism of action.

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