Non-stabilized Lugol solution.

Solution contains polyvinylpyrrolidone iodine (PVP-I).

Safranine O stock solution for preparing contrast staining solution acc. to Gram

Counterstain for Gram-negative bacteria, contains Safranine O dye.

Aqueous solution of iodine and potassium iodide.

Aqueous iodine and potassium iodide solution with added acid.

Aqueous solution of iodine and potassium iodide, enhanced formulation with stronger staining (compared to classic Lugol solution).