Please note: This product might take a little longer to arrive as it may be shipped from outside the UK. Demavic Flea and Insect Repellent dog shampoo is the gentle and effective way to get rid of fleas and other biting insects. The shampoo takes effect immediately, ridding your pet of nasty insects and creating an inhospitable environment to prevent further infestation. It also has a calming effect on sensitive and irritated skin. The shampoo is pH-neutral (skin pH-level) and suitable for all types of fur. Demavic Flea Insect Repellent Dog Shampoo is effective for approx. 8-10 days, although rain and bathing will shorten this period. The shampoo is designed for repeated use and if needed, can be used up to twice a week. Demavic Flea and Insect Repellent Dog Shampoo at a glance: Cleansing and insect repellent pH-neutral and very mild Takes effect immediately Suitable for all types of fur Dilute 1:3 (shampoo : water) to use Can be used frequently Duration of effectiveness: approx. 8-10