Biofreeze Topical Pain Relief 5% Strength Menthol Gel 89 mlTopical Pain Relief Biofreeze 5% Strength Menthol Gel 3 oz. Biofreeze fast acting cold therapy treatment gets you back to your best when muscle or joint pain strikes. Long lasting menthol formula cools the pain and temporarily relieves minor aches and pains of muscles and joints associated with simple backache, arthritis, strains, bruises and sprains. Biofreeze's active ingredient is 5% menthol but it also contains Aloe Barbadensis leaf extract,