Phosphate Buffered Saline (PBS) 3mL

Phosphate buffered saline is a 3mL vial of phosphate buffered saline, the salt-balanced, pH-stable solution used across cell biology. It costs $8.00, and it ships free worldwide.

Use it when a protocol needs a peptide in a buffered solution that matches the salt and pH conditions of living cells, rather than in bacteriostatic water.

What is phosphate buffered saline?

PBS is water with sodium chloride and phosphate salts, and sometimes potassium salts, at concentrations close to those in body fluids. The phosphate holds the pH steady near 7.4, and the salt keeps the solution isotonic, so cells don’t swell or shrink in it.

It’s one of the most used solutions in any biology lab: for rinsing cells, diluting reagents and dissolving compounds that need a neutral, buffered environment.

When to use PBS for peptides

• When a cell culture protocol asks for the peptide in a buffered solution
• When you need to dilute a stock solution to its working concentration
• When the peptide data sheet names PBS as the solvent

For general reconstitution, bacteriostatic water is still the usual choice. For peptides that need an acid to dissolve, use Acetic Acid 10mL first.

How to use it

Let the vial and the peptide reach room temperature. Wipe the stopper, draw with a sterile syringe and add the PBS slowly down the glass wall. Swirl gently and don’t shake.

PBS doesn’t contain a preservative, so treat an opened vial as short-term and keep it cold between uses. The 3mL size is meant for small amounts, so there’s little left over to go off.

Phosphate buffered saline specifications

• Contents: phosphate buffered saline
• Volume: 3mL vial
• pH: buffered near neutral
• SKU: PBS-3
• Use: laboratory research only

Storing PBS

Keep sealed vials at room temperature. Once opened, store the vial in the fridge at 2 to 8°C and use it within a short time, because without a preservative bacteria can grow.

Background reading

PBS is described in nearly every cell biology methods text. For papers on buffers and peptide stability, see this PubMed search.

Ordering Phosphate buffered saline with your peptides

Phosphate buffered saline is the kind of item that’s easy to forget until the day you need it. Put it in the cart with your peptides, and since every order ships free, the supplies cost nothing extra to send.

A good rule is to order supplies for the whole study at the start. Count the vials you’ll reconstitute or store, add one or two spares, and you won’t stop halfway through a protocol to wait for a delivery.

Handling Phosphate buffered saline the right way

Work on a clean surface, wipe stoppers and caps with alcohol before every use, and use a fresh sterile syringe for each draw. Small habits like these do more to protect a study than any single product.

Label everything the moment you fill or open it: what’s inside, the concentration and the date. In a shared fridge, a clear label is what stops a vial being used in the wrong arm or thrown away by mistake.

Shipping and delivery

Peptira ships Phosphate buffered saline free to the US, Canada, Europe, Australia and the rest of the world, with no minimum order. Orders are packed with care so vials and cases arrive intact.

Enter code PEPTIRA10 at checkout for 10% off the whole order, including supplies, and pay with crypto for an extra discount on top.

Why buy Phosphate buffered saline from Peptira?

Peptira stocks the supplies that go with its peptides, so the water, vials, sprayers and cases in your cart are chosen to fit the vials you’re ordering. You get one supplier, one delivery and one support team to ask if anything about Phosphate buffered saline isn’t clear.

Every item is in stock and ships quickly. If you need a quantity bigger than the cart allows, email our support team and we’ll sort out a larger order.

Other Peptira lab supplies

• Bacteriostatic Water 10mL
• Bacteriostatic Water 3mL
• Bacteriostatic Water 30mL (H)
• Acetic Acid 10mL
• Deionized Water 10mL
• Sterile Empty Vial 10mL

See the full range on our peptide lab supplies page, browse our research peptides or go back to the Peptira home page.

Phosphate buffered saline FAQ

What’s the difference between PBS and bacteriostatic water?

PBS is a buffered salt solution with no preservative. Bacteriostatic water is plain sterile water with benzyl alcohol.

How much is in the vial?

3mL.

Is PBS in stock?

Yes. It’s in stock and ready to ship.

Can it be used in people or animals?

No. It’s sold for laboratory research only.

Order Phosphate buffered saline today

Order Phosphate buffered saline now for $8.00. It’s in stock, code PEPTIRA10 takes 10% off at checkout, and we ship free to the US, Canada, Europe and Australia. Choose crypto at checkout for an extra discount.

Need more for the same project? See the rest of our peptide lab supplies, or go back to the Peptira home page.

For laboratory research use only. Not for human or veterinary use. These statements have not been evaluated by the FDA.