We think Saphir makes the best shoe care products on the planet. Think of this product as a reset button for your shoes — it’ll strip away dirt, old coats of polish, or buildup from cheap products. Because it's so strong, we don’t recommend using Réno Mat for low-quality leather — it’ll eat the finish off. Two to three times a year at the very most, use a chamois cloth to apply a thin coat over the leather until no residue remains, and then buff clean.