Tink's #69-X is a unique formulation developed to break down slowly and release its scent just like naturally voided deer urine. A Benefit to using Tink's #69-X in scrapes or mock scrapes is that any moisture will reactivate the formula. Tink's #69-X has a mild smell but will get stronger when exposed to the elements. It doesn't have to stink to be effective. It is best to use this product during the Rut.