Sole Serum is amazing and does exactly what it says it will do. The true test for me was when I went to Vegas for a fun filled weekend. I had just bought a pair of beautiful 4" heels to wear out but knew they would kill my feet after an hour. I put Sole Serum on my feet before wearing them and made sure to pack it in my purse. After about 2 hours my feet felt a tiny bit sore so I reapplied it and after a few minutes no more soreness. I danced the night away painless! Sole Serum is my new gem.