Derma Delice Head Lice Solution is an ultra safe solution that eradicates 96% of lice within 10 minutes of application. Delice solution is safe for adults and children and is healthy for your skin and hair. Delice is an effective solution against head lice and nits infestation. Its mechanism of action is by engulfing the respiratory system of the lice and nits, thus preventing oxygen from reaching. Delice active ingredient is Dimethicone which is well known ingredient used in anti-flatulence products and also used in many cosmetic products as a conditioner.