Luria-Bertani (LB) broth is the most widely used medium for the growth of bacteria (Bertani 1951 ). We offer LB media in powder and liquid formats, along with ready-to-use LB agar plates.

Ready-to-use LB Agar Plates (LB Miller’s formulation) with glass beads. Convenient for immediate use, with a longer shelf life for flexibility and reduced waste.

Formulation per one liter:

  • 10 g Casein peptone
  • 5 g Yeast extract
  • 10 g NaCl
  • 15 g Agar

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Gibco LB Broth, Liquid

Gibco LB Broth is based on the Lennox formulation, one of the most commonly used for LB medium.

Formulation per one liter:

  • 10 g SELECT Peptone 140
  • 5 g SELECT Yeast Extract
  • 5 g Sodium Chloride


Each bottle of Gibco LB Broth is filter-sterilized and ready-to-use in ergonomic Gibco media bottles with angled openings for simplified pipetting.

View liquid Gibco LB Broth

LB Broth, Powder (Lennox)

Powder format of the LB Lennox formulation in convenient packaging to meet diverse research needs.

Formulation per one liter:

  • 10 g SELECT Peptone 140
  • 5 g SELECT Yeast Extract
  • 5 g Sodium Chloride

View all Lennox LB Broth

LB Broth, Powder (Miller’s)

Powder format of the LB Miller’s formulation in convenient packaging to meet diverse research needs.

Formulation per one liter:

  • 10 g SELECT Peptone 140
  • 5 g SELECT Yeast Extract
  • 10 g Sodium Chloride

View all Miller's LB Broth

LB Agar (Lennox)

Formulation per one liter:

  • 10 g SELECT Peptone 140
  • 5 g SELECT Yeast Extract
  • 5 g Sodium Chloride
  • 12 g SELECT Agar

View all Lennox LB Agar

Ordering Information

Catalog # Name Size Price (USD) Qty
A55800 One Shot™ LB Agar Plates, 2 x 10 Plates Each
132.00
A55802 One Shot™ LB Agar Plates with 100 μg/mL Ampicillin, 2 x 10 Plates Each
145.00
A55803 One Shot™ LB Agar Plates with 50 μg/mL Kanamycin, 2 x 10 Plates Each
145.00
10855001 LB Broth (1X), 1 L Each
58.65

Online exclusive

63.50
Save 4.85 (8%)
10855021 LB Broth (1X), 500 mL Each
38.65

Online exclusive

40.87
Save 2.22 (5%)
12780029 LB Broth Base (Lennox), 2.5 kg Each
606.65

Online exclusive

642.00
Save 35.35 (6%)
12780052 LB Broth Base (Lennox), 500 g Each
131.65

Online exclusive

140.00
Save 8.35 (6%)
12795027 Luria Broth Base (Miller's LB Broth Base), powder, 500 g Each
114.65

Online exclusive

121.00
Save 6.35 (5%)
12795084 Luria Broth Base (Miller's LB Broth Base), powder, 2.5 kg Each
419.65

Online exclusive

444.00
Save 24.35 (5%)
22700025 LB Agar (Lennox L Agar), powder, 500 g Each
154.65

Online exclusive

163.00
Save 8.35 (5%)
22700041 LB Agar (Lennox L Agar), powder, 2.5 kg Each
607.65

Online exclusive

638.00
Save 30.35 (5%)