RecoveryPreclinical
BPC-157 and TB-500 together: is there any evidence for combining them?
One rat study has tested the pair head to head, and the combination did no better than either peptide alone. There are no controlled human data.
TB-500
A synthetic fragment of thymosin beta-4; the full protein has small eye-drop and wound trials, while the fragment itself has no published human data.
- Also known as
- Thymosin beta-4, Tβ4, TB4, Ac-LKKTETQ, Thymosin beta-4 fragment 17–23, RGN-259
- Area
- Recovery
- Status
- Not approved as a medicine; thymosin beta-4 and derivatives banned by WADA (S2)
Articles on TB-500
RecoveryHuman RCT
TB-500 and thymosin beta-4: what has actually been tested in people
The human trials used the full thymosin beta-4 protein, mostly as eye drops. TB-500, the seven-amino-acid fragment people inject, has no published human data at all.
RecoveryHuman RCT
Thymosin beta-4 eye drops for dry eye: the 72-person trial missed its main goals
Neither primary outcome improved in the larger of two published phase 2 trials. Some secondary measures did, and the drops looked safe for 28 days.