Side by side
BPC-157 vs Thymosin alpha-1
Both are discussed for healing & recovery. What this site records about each, side by side. Every figure is on the compound's own page with the source it came from.
| BPC-157 | Thymosin alpha-1 | |
|---|---|---|
| What it is | A synthetic 15-amino-acid peptide studied in animals for effects on tendon, ligament and gut tissue repair. No completed human trials. | An immune-modulating peptide approved in more than thirty countries for hepatitis B, and studied in sepsis and as a vaccine adjuvant. Not approved in the United States. |
| EvidenceHow much human evidence exists, not how well it works. | Preclinical | Approved for another indication |
| Regulatory statusReviewed 2026-08-12 | Not approved for human use in the United States. The FDA has treated BPC-157 as a substance raising safety concerns for use in compounded preparations. Material sold online is a research chemical with no manufacturing standard behind it. | Approved as thymalfasin in more than thirty countries, principally for chronic hepatitis B. Not approved in the United States, where it is sold as a research chemical with no manufacturing standard behind it. |
| Routes | Subcutaneous, Intramuscular | Subcutaneous |
| Half-life | 4 hours | 2 hours |
| Cheapest per mgVials only, read from vendors' own listings and dated on the price index. | $1.80/mg | $2.00/mg |
| Median per mg | $5.00/mg | $7.20/mg |
| Vendors with a price | 59 | 43 |
| Storage once mixed | Refrigerated at 2–8 °C. Do not freeze once mixed. Discard if the solution becomes cloudy. | Refrigerated at 2–8 °C. Do not freeze once mixed. |
Compare two other compounds · The full price index
This page is educational. It describes what published research reports, not what you should do. Peptides discussed here are largely not approved for human use, and nothing on BioAlmanac is medical advice. Nothing here ranks these two against each other. A table can show that one has more human evidence behind it or costs less per milligram; neither of those is a recommendation, and the right comparison for any person is one their doctor makes with them.