BPC/TB500 Blend: Handling, Storage, and Reconstitution Guide

This guide covers lab handling, storage, and reconstitution of the BPC/TB500 blend. The blend is a lyophilized, or freeze-dried, mix of two research peptides in one vial. Every step below is framed as lab best practice for in-vitro and animal-model work. None of it is human-use instruction.

How should the BPC/TB500 blend be stored?

Store the sealed BPC/TB500 blend at or below 25 degrees Celsius, away from heat, light, and moisture. It ships as a solid, white lyophilized powder in a sealed glass vial that holds both peptides. For long-term storage, keep it lyophilized and refrigerated or frozen. Two peptides share the vial, so steady conditions protect both at once.

Puritide offers the blend in 5+5 mg and 10+10 mg vials. The two numbers give the milligram amount of each peptide.

A two-peptide vial adds extra record keeping compared with a single compound. Both parts must be tracked from receipt through use and disposal. The physical handling steps are standard. The records, though, must always show that two distinct molecules share the vial.

How to account for both peptides in the vial

Track each peptide on its own, using the milligram amount given in the size label. The two parts have these specs:

• BPC-157: formula C62H98N16O22, free acid weight about 1419.5 g/mol, CAS 137525-51-0.
• TB-500: formula C38H68N10O14, about 889.0 g/mol, CAS 885340-08-9.

When working out exposure, handle each peptide separately. This dual tracking supports the study designs in the BPC/TB500 blend research applications.

How to reconstitute the blend for in-vitro work

Reconstitute the blend with bacteriostatic water or another solvent that suits the assay. Add the liquid slowly down the inside wall of the vial, not onto the powder. Let both peptides dissolve gently. Swirl the vial. Do not shake it or vortex it hard.

• Add the liquid against the vial wall, not onto the pellet.
• Let both parts dissolve fully and gently.
• Check the solution by eye before use.
• Work out each peptide's concentration from its labeled mass and the liquid volume.

Why aliquot the blend after reconstitution?

Aliquoting limits freeze and thaw cycles. Split the mixed blend into single-use portions. Then each test draws from a vial thawed only once. Label each portion with both peptide amounts, the concentration, the date, and the lot number.

Fewer freeze and thaw cycles keep exposure steady for combination studies. This matches the BPC-157 handling guide and the TB-500 handling guide.

How to store reconstituted and working solutions

Keep mixed portions frozen for longer holds. Keep short-term working solutions cold and out of the light. Hold conditions steady for the whole study, and keep storage logs. Combination studies need stable, comparable exposure to both peptides. So a steady cold chain matters even more here.

What should the blend certificate of analysis show?

Each blend batch ships with a third-party certificate of analysis, or COA. It confirms the identity and purity of both peptides. The main test methods are listed below:

• HPLC, or reverse-phase chromatography, for purity.
• Mass spectrometry for identity.

The COA also lists the lot, the blend makeup, the test date, and method details. Check both peptides on the COA against the vial label, and keep the document. Sample COAs can be requested before purchase.

At intake, check both peptides against their listed synonyms. Confirm the white lyophilized look of the blend. The size label gives each peptide's mass. So check that the label matches the COA for both molecules on receipt. This step prevents the most common error in preparing combination studies.

What PPE and safety rules apply?

Handle the blend as an investigational material. Follow your institution's SOPs, chemical hygiene plan, and approved protocols. Wear a lab coat, gloves, and eye protection. Use engineering controls where needed. Only trained staff should handle the blend, in controlled settings. The blend mechanism overview and the BPC/TB500 blend product page give spec context.

How to record both peptides in the lab log

Records for the blend must cover both peptides. A full record notes the following:

• The milligram amount of BPC-157.
• The milligram amount of TB-500.
• The total liquid volume added.
• The resulting concentration of each peptide.
• The vial lot and its certificate of analysis.

The test data covers two molecules, so the record should name both clearly.

This dual record makes combination studies repeatable. A later team may want to repeat a result. They need more than the fact that a blend was used. They need the exact amount and concentration of each peptide, so they can recreate the same combined exposure. Logging the two peptides as separate entries supports that precision.

In the end, steady handling is a reproducibility measure. A BPC/TB500 Blend batch should be checked against its COA, mixed gently, split into portions, kept cold, and fully logged. That gives every later test the same reliable starting material. It lets other labs compare results and build on each other's work.

Sometimes a study proves hard to repeat. A full handling record then helps labs tell a real biological difference from a preparation error. That is why careful BPC/TB500 Blend handling pays off across a whole project.

For research use only. These handling notes describe laboratory practice for the BPC/TB500 blend as a research material supplied by Puritide Research. It is not approved for human or veterinary use, and nothing here constitutes medical or administration guidance.