osemary Mint: This defence formula is made with rosemary and mint, making it effective to repel fleas and ticks for 1 week after use. Pet Friendly Formula: Wahl understands the importance of avoiding harsh chemicals, which is why all our shampoos are pH Balanced, as well as Paraben & Alcohol Free. Concentrated Formula: With this large 700ml bottle of high concentrate shampoo, a little goes a long way. This saves you money and trips back to the shop! Healthy Skin, Healthy Coat: A healthy skin makes for a healthy coat. The Flea & Tick Shampoo comprises of a thick lather that rinses clean, leaving your pet’s coat healthy, silky and smooth.