The Wolverine Blend is a pre-mixed research peptide combining BPC-157 and TB-500 in a single vial. Most formulations pair 2 mg of BPC-157 with 2 mg of TB-500, giving 4 mg total. If you are researching this blend, here is what you need to know about what it contains, how to store it, and what documentation to expect.
What the Wolverine Blend BPC-157 and TB-500 Actually Contains
BPC-157 is a 15-amino-acid peptide derived from a protein found in gastric juice. TB-500 is a synthetic version of a naturally occurring protein fragment called Thymosin Beta-4. Both are sold as lyophilised — freeze-dried — white powder for research use.
Standard vial ratios you will see:
- 2 mg BPC-157 + 2 mg TB-500 (most common, 4 mg total)
- 5 mg BPC-157 + 5 mg TB-500 (10 mg total, less common)
The blend is always supplied as a dry powder. It is not pre-mixed liquid.
Form and Storage
The powder form matters for stability. Peptides in solution break down over time, especially at room temperature. Freeze-drying removes almost all water from the vial, which slows that breakdown dramatically. A properly lyophilised vial can stay stable for 24 months or longer when stored correctly.
Dry powder vials should be stored in a freezer at -20°C for long-term storage. A standard kitchen freezer works. If you are working through a vial within a few weeks, refrigeration at 2–8°C is acceptable.
Once reconstituted with bacteriostatic water, the rules change:
| State | Temperature | How Long |
|---|---|---|
| Lyophilised powder | -20°C freezer | Up to 24 months |
| Lyophilised powder | 2–8°C fridge | 3–6 months |
| Reconstituted solution | 2–8°C fridge | 28–30 days |
| Reconstituted solution | Room temperature | Do not store |
Once water is in the vial, the peptide begins to break down. Warmer temperatures make that happen faster. Repeated freeze-thaw cycles also degrade the peptide, so do not freeze a reconstituted vial and thaw it repeatedly.
Keep all vials away from light. UV light breaks peptide bonds. A drawer or opaque bag is enough.
COA: What to Look For
A COA — Certificate of Analysis — is the third-party lab report that confirms the peptide is what the label says it is. For a blend vial, the COA should cover both peptides, not just one.
The minimum you want to see:
- Identity confirmation — usually HPLC (high-performance liquid chromatography, a method that separates and identifies compounds by how they move through a column) or mass spectrometry
- Purity percentage — research-grade material typically reads at 98% or above
- Peptide-specific results — separate entries for BPC-157 and TB-500, not a combined pass/fail
- The testing lab name — with enough detail that you could look them up independently
- Batch or lot number — so the COA matches the vial you received
A COA that only tests for one peptide in a blend vial is incomplete. A COA without a named lab is not a COA — it is a label reprint. If the document does not show a chromatography trace or a mass reading, it has not been independently tested.
The Wolverine Blend is BPC-157 and TB-500 combined in a single freeze-dried vial, most often at 2 mg each. Store dry powder in the freezer and keep the reconstituted solution in the fridge for no more than 30 days. Ask for a COA that names the testing lab, shows purity at 98% or above, and lists results for both peptides individually. Form, storage, and documentation are where research quality is won or lost.
NXT Labs products are sold strictly as research chemicals for in vitro research, laboratory testing and analytical purposes only, and are not intended for use in any human or animal application.
NXT Labs supplies research peptides for laboratory use. Browse the full range or view current Certificates of Analysis.
