Lice Mavi Spray is your safest and fastest option to eliminate lice from the first use. The active ingredient Dimethicone in the dual formula gives your child treatment and protection from lice and nits. The spray smells fragrant and very pleasant. It comes with an easy-to-use comb. It is safe for all children and does not contain any harmful substances. Lice Mavi Spray is your safest and fastest option to eliminate lice from the first use. The active ingredient Dimethicone in the dual formula gives your child treatment and protection from lice and nits.