01
Name confusion, on purpose
Vendors blur TB-4 and TB-500. We put both cards on the grid so the no is visible either way you search.
- ·See TB-500 page for the fragment evidence layout
- ·Same compounding answer
- ·No systemic healing vial today
RE GEN RX · peptides / Thymosin Beta-4 / TB-500
Under FDA review
Thymosin Beta-4 / TB-500
Thymosin beta-4 is the parent story; TB-500 is the fragment people shop — same operational no today.
Oswego, Illinois · 74 W. Washington St · serving the Fox Valley. A licensed Illinois clinician still decides. Compounded medications are not FDA-approved.
Legal status reviewed July 2026 · Systemic healing protocols
What is Thymosin Beta-4 / TB-500?
The molecule, in plain language.
Thymosin beta-4 is a native peptide involved in actin regulation. TB-500 is the fragment name on most clinic menus. PCAC recommended TB-500 for the 503A bulks list in July 2026. Until FDA lists it, RE GEN will not compound thymosin beta-4 or TB-500.
How people usually take it. Not orderable.
What people are actually trying to solve.
Interest is not a result. We keep the research language and skip the miracle.
02
Not thymosin alpha-1
Different peptide, different legal reason for no.
- ·TA-1 page
- ·Do not stack thymosins from research sites
- ·Ask what is carried
03
Repair tools we can discuss
Sermorelin and topical GHK-Cu when they actually fit the goal.
- ·Sermorelin
- ·GHK-Cu topical
- ·Consult
What the evidence actually is — and what it isn’t.
A note on honesty: we will tell you what the literature supports and what it does not. Animal data is not a human guarantee. Anecdotes are not trials.
Animal research
Thymosin beta-4 has a broad preclinical repair literature; TB-500 is discussed as an active fragment.
- ·Not listing yet
- ·Not orderable
- ·Not a healing-time promise
Human research
Human evidence remains limited. PCAC recommendation of TB-500 is not approval of either name.
- ·Not orderable
- ·Do not buy research TB-4
- ·Read the TB-500 page
Legal basis at RE GEN · July 2026
We will not compound this today.
No lawful §503A pathway yet. PCAC recommended TB-500 in July 2026. Not orderable until FDA acts. We will not compound thymosin beta-4 / TB-500.
PCAC recommended listing is not a green light. Not orderable today.
Common questions
Peptide education for Illinois patients at RE GEN in Oswego — not a substitute for a visit.
What is thymosin beta-4?
A native actin-regulating peptide. TB-500 is the fragment name on most menus. Neither is orderable at RE GEN today.
Is thymosin beta-4 FDA-approved?
thymosin beta-4 is not FDA-approved, and RE GEN does not have a lawful §503A pathway to request it as a compounded medication today. A committee vote is not approval.
Can I get thymosin beta-4 at RE GEN in Oswego?
You can start a visit to talk about your goal. We will not compound thymosin beta-4 today. We will show you what is carried instead — and we will say no rather than gray-market a vial.
Did PCAC approve it?
PCAC recommended TB-500 for the 503A bulks list in July 2026. That is not FDA listing and not a vial.
Do you promise results?
No. Educational pages explain why people ask and what the research landscape looks like. Individual response varies. Compounded medications are not FDA-approved, and a request is not a guaranteed prescription.
Related on this menu
Illinois practice · licensed 503A compounding
A committee vote is not a green light. We add a peptide when FDA does.
Hello Gorgeous PC · 74 W. Washington St, Oswego, IL
RE GEN desk 630-636-6193
Start a visit, a licensed Illinois clinician reviews, then you pay the invoice. If they don't prescribe, we refund.