Bacteriostatic Water 3ml

What is bacteriostatic water?

Bacteriostatic water is sterile water containing 0.9% benzyl alcohol as a bacteriostatic agent. The benzyl alcohol is what distinguishes it from plain sterile water: it inhibits bacterial growth, which allows multiple withdrawals from a single vial across a research window rather than one use and disposal.

It is the standard diluent for reconstituting lyophilized peptides, and it is the item most often forgotten in a first order. A vial of research peptide is a dry powder. Without a diluent it cannot be brought into solution at all.

Why researchers buy bacteriostatic water for peptides

Every lyophilized peptide requires reconstitution before it can be used in solution. Bacteriostatic water is preferred over sterile water for injection in laboratory settings for one practical reason: the preservative permits repeated access to the same vial without the contamination risk that comes with unpreserved water.

For a research programme working through a vial over days or weeks rather than in a single session, that difference is the entire point.

Bacteriostatic water vs sterile water

Buy bacteriostatic water: specifications

How to reconstitute peptides correctly

The procedure matters more than most first-time buyers expect, because peptides are fragile in ways that are not obvious.

Introduce the bacteriostatic water slowly down the inside wall of the peptide vial rather than directly onto the lyophilized powder. Let the material dissolve on its own. If it needs help, swirl gently. Never shake: peptides degrade under shear force, and vigorous agitation is one of the most common ways a good vial is ruined by handling rather than by the supplier.

Once reconstituted, the solution requires refrigeration and has a considerably shorter stable window than the dry powder had.

Storage and handling

Store unopened vials at room temperature away from direct light. After opening, refrigerate and observe the limited usable window. Do not freeze bacteriostatic water, and do not use a vial with visible particulates or discolouration.

Why researchers buy bacteriostatic water from Healio

It ships alongside the peptides it is meant to reconstitute, from the same US dispatch point, which avoids the common situation of a peptide arriving before the diluent does. Every peptide in the catalog carries an independently verified certificate published at our research page.

If you are ordering a first vial of anything from peptides for weight loss, peptides for healing, or any other collection, add this to the order.

Bacteriostatic water FAQ

What is bacteriostatic water used for?

Reconstituting lyophilized research peptides into solution. The benzyl alcohol preservative allows multiple withdrawals from one vial over a research window.

What is the difference between bacteriostatic water and sterile water?

Bacteriostatic water contains 0.9% benzyl alcohol, which inhibits bacterial growth and supports repeated access to the vial. Sterile water has no preservative and is intended for single use.

How much bacteriostatic water do I need per vial?

That depends entirely on the compound and the concentration a given research protocol calls for, so there is no universal figure. The volume determines the final concentration of the reconstituted solution.

How should bacteriostatic water be stored?

Unopened at room temperature away from light. After opening, refrigerated, with a limited usable window. Do not freeze.