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

Ordering Information