I have suffered with feet and legs cramps for many, many years. I tried increasing potassium in my diet to different ointments/meditated creams to pain relieving pills but nothing gave me instant, long lasting relief. Then my chiropractor explained how the cramping was due to inflammation in the nerves and gave me a sample of ProloGel and most importantly showed me where on my feet and legs to apply it. I was very skeptical especially since it was such a small amount but it worked!! I finally got the instant, long lasting relief from very painful feet and leg cramps I'd been longing for all these years!