Biofreeze Menthol Pain Relieving Gel is well-suited for application on small and large muscle areas. Fast acting and long lasting, cooling menthol formula delivers penetrating pain relief for sore muscles, simple backaches, joint pain, bruises, and arthritis. There is no limit to what you can do when you cool your aches and pains. HSA/FSA EligibleRestrictions apply; contact your insurance provider about plan allowances and requirements.