My mother fell on the floor and had a blood blister type bruise going all up and down the outer arm, from knuckles to shoulder. I bought this product and within a few days noticed a difference. It was getting smaller. Bruises from injuries tend to migrate, and after four days, a head bump produced bruising around both eyes, and puddling in skin indentations. My Mother was 88 then and it was reassuring to her to see this product produce a noticeable result. Great product. The small jar lasted the entire healing session of that large area.