Safety
Regulatory · Analysis
Compounding vs FDA Approval: The Real Difference
Compounding vs FDA approval isn't a technicality: the FDA never reviews a compounded drug for safety, effectiveness, or quality. See the real difference.
By peptidesmedia Editorial Desk ·
The beat
Latest from the regulatory beat
Dated, re-reviewed coverage of peptide regulation, safety and evidence.
Regulatory
Compounding vs FDA Approval: The Real Difference
Compounding vs FDA approval isn't a technicality: the FDA never reviews a compounded drug for safety, effectiveness, or quality. See the real difference.
Safety
FDA Staff Made a Safety Case Against Compounding BPC-157 and TB-500. Here Is What It Says.
BPC-157 safety, as FDA staff set it out for the July 2026 compounding advisory meeting: quality, immunogenicity and missing human data. No final decision.
Legality
FDA Tells Five 'Research Use Only' Peptide Sellers Their Products Are Unapproved Drugs
Research use only peptides are unapproved drugs when sold for human use, five FDA warning letters posted 1 September 2026 tell online peptide sellers.
Reference
Peptides A–Z
Each entry covers what it is, the evidence grade, safety, and current legal status — dated and medically reviewed.
- BPC-157
Synthetic peptide
Unapproved drug - Semaglutide
GLP-1 agonist
FDA-approved - Tirzepatide
GIP/GLP-1 agonist
FDA-approved - TB-500
Thymosin β4 fragment
Unapproved drug - Collagen Peptides
Hydrolysed collagen
Dietary supplement
Start here
Three ways in
New to peptides, or just want the current state of play? Start with one of these.
Which Peptides Are FDA-Approved? The Status Tracker
A maintained, dated tracker of the FDA status of every peptide we cover — and what each status actually permits.
Open the tracker →
Do Peptides Actually Work? What the Research Shows
What the published evidence supports, what it does not, and how to tell the difference between an anecdote and a trial.
Read on →
GLP-1 Medications: The Hub
The approved GLP-1 medicines, how they differ, what they cost, and where compounded versions fit.
Read on →