Skinny leg cream is a deceptive thing for businessmen who speculate on concepts.
The decomposition of fat is a complex biochemical process.
It is fatty acids in fat cells that enter the circulatory system.
Many human organs work together and break down into carbon dioxide and water.
Carbon dioxide is excreted through the lungs.
Water is excreted through the skin as sweat.
Or excreted in urine through the kidneys.
You can't simply put things on your legs.