Phosphate Buffered Saline (PBS)

Product Overview


Phosphate Buffered Saline, PBS, is a water-based salt solution containing sodium chloride and sodium phosphate. PBS is commonly formulated to help cells maintain a constant pH and osmosis, but can be modified and/or diluted for use in other applications related to biological research.

PBS is commonly used in Cell Culture Media and Immunofluorescence applications, other applications include, but are not limited to:
  • A diluent for concentrated substances
  • A rinsing agent, for containers with cells
  • Separating clumped cells

PBS from Biologos is available in 1x or 10x concentrations, with or without calcium and magnesium, as well as, custom formulations and custom pH levels.

Available In:

500mL PET Bottles - 25/Case, 400/Pallet
1000mL PET Bottles - 16/Case, 256/Pallet
3000mL HDPE Bottles - 4/Case, 144/Pallet
Custom Packaging Available
Volume Pricing Available

Fully Customized Formulas Available!

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Our Customers Come First!

We provide quick turnaround time for quotes and formula customization requests to ensure your needs are met efficiently and accurately. We work closely with you to create custom formulas, packaging sizes, and delivery systems that fit your specific requirements and time frames.


About Biologos

Biologos is a full-service manufacturer of standard and custom serum, cell culture media, reagents, and enzyme solutions specializing in quick turn product formulation and distribution.

Manufacturing and Turnkey Expertise: More than 40 years of experience, providing premium quality serum cell culture media, reagents and custom formulations.

Custom Formulation Specialists: Biological solutions customized to your specifications, formulated by Biologos' experts and delivered on your specified date.

Client Success Team: Personalized and responsive in-house customer service team to assist you with customization, carry out your requests and meet deadlines.

Direct Access to the Manufacturer: Biologos is your manufacturer, warehouse, and distributor, eliminating unnecessary costs and supporting efficiency.

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Call 800-246-4088 or Complete this Form

About PBS Media

What is PBS?

Phosphate Buffered Saline, PBS, is a water-based salt solution containing sodium chloride and sodium phosphate. PBS is commonly formulated to help cells maintain a constant pH and osmosis, but can be modified for use in other applications related to biological research.

PBS Storage and Handling

Phosphate Buffered Saline is supplied in gamma irradiated, sterile PETG or PETE bottles. We recommend that PBS solution be stored at ambient temperatures. Always use aseptic techniques when handling Phosphate Buffered Saline.

Phosphate Buffered Saline is shipped ambient by less than truck-load carrier or overnight, as needed.

PBS Shelf Life

Phosphate Buffered Saline has a shelf life of 2 years, when stored properly.

Biologos makes each PBS formulation upon request. After your order is placed, we will stock and store your custom PBS formulations in our GMP certified facility, and ship your formulation as you request it- ensuring product quality.

PBS Uses

PBS is commonly used in Cell Culture Media and Immunofluorescence applications. PBS can be formulated with potassium phosphate, potassium chloride and other additives to assist cells with maintaining pH, osmosis and ionic concentrations seen in the human body.

Other applications include, but are not limited to:
  • A diluent for concentrated substances
  • A rinsing agent, for containers with cells
  • Separating clumped cells (PBS with EDTA)