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
136.00
A55802 One Shot™ LB Agar Plates with 100 μg/mL Ampicillin, 2 x 10 Plates Each
149.00
A55803 One Shot™ LB Agar Plates with 50 μg/mL Kanamycin, 2 x 10 Plates Each
149.00
10855001 LB Broth (1X), 1 L Each
60.65

Online Exclusive

65.50
Save 4.85 (7%)
10855021 LB Broth (1X), 500 mL Each
39.65

Online Exclusive

42.10
Save 2.45 (6%)
12780029 LB Broth Base (Lennox), 2.5 kg Each
625.65

Online Exclusive

662.00
Save 36.35 (5%)
12780052 LB Broth Base (Lennox), 500 g Each
135.65

Online Exclusive

144.00
Save 8.35 (6%)
12795027 Luria Broth Base (Miller's LB Broth Base), powder, 500 g Each
118.65

Online Exclusive

125.00
Save 6.35 (5%)
12795084 Luria Broth Base (Miller's LB Broth Base), powder, 2.5 kg Each
431.65

Online Exclusive

457.00
Save 25.35 (6%)
22700025 LB Agar (Lennox L Agar), powder, 500 g Each
159.65

Online Exclusive

168.00
Save 8.35 (5%)
22700041 LB Agar (Lennox L Agar), powder, 2.5 kg Each
626.65

Online Exclusive

658.00
Save 31.35 (5%)