Research Reviews
Peptide Policy and Research: Week to 2 November 2026
HHS published a draft enforcement discretion policy covering six compounded peptides, and a new orthopaedic review assessed BPC-157 and TB-500.
Research Reviews
HHS published a draft enforcement discretion policy covering six compounded peptides, and a new orthopaedic review assessed BPC-157 and TB-500.
Comparisons
GLOW is GHK-Cu 50 mg plus TB-500 10 mg and BPC-157 10 mg. What the extra components contribute, how the maths differs, and when the single peptide is better.
Research Reviews
No formal half-life study exists for TB-500's heptapeptide. What metabolite work shows, how the actin-binding region is thought to act, and how to read claims.
Lab Handling
How to reconstitute TB-500, concentration and molar tables for 5 and 10 mg vials, why its sequence is forgiving, and what to verify before you start.
Comparisons
Thymosin alpha-1 and beta-4 are unrelated peptides that share only a historical name. How they differ, and how TB-500's 17-23 fragment relates to beta-4.
Research Reviews
A 2026 rat Achilles tendon study tested both peptides and their combination. The combination conferred no additional benefit over either alone.
Peptide Profiles
TB-500 is a synthetic N-acetylated LKKTETQ peptide from the actin-binding site of thymosin beta-4. How it differs from full Tβ4 and what research covers.
Peptide Profiles
KLOW blends GHK-Cu 50 mg, TB-500 10 mg, BPC-157 10 mg and KPV 10 mg. How it differs from GLOW, per-component concentrations and four-component testing.
Peptide Profiles
The GLOW blend combines GHK-Cu 50 mg, TB-500 10 mg and BPC-157 10 mg. What each component is, how to reconstitute and calculate each, and how to store it.
Peptide Profiles
What a BPC-157 + TB-500 blend contains, how to calculate each peptide's concentration after reconstitution, how blends are tested and what is known.
Comparisons
BPC-157 and TB-500 are often grouped together but differ in origin, size and pathway. A side-by-side comparison of structure, mechanisms and published evidence.