Poloxamer 183 L63 is block polymer of polyoxyethylene and polyoxypropylene with average molecular mass of 2650. Poloxamer 183 L63 exhibits antimicrobial activity, that inihibits 83% Mycobacterium avium complex at concentration of 1 mg/mL. Poloxamer 183 L63 forms thermoreversible hydrogel, that is utilized in food additives, drug delivery carriers in cosmetics, pharmaceutical ingredients and tissue engineering^[1][2].