Luria-Bertani (LB) broth is the most widely used medium for the growth of bacteria (Bertani, et al., 1951). We offer LB media in both powder and ready-to-use liquid formats for convenience and ease of use.

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 all 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