- Hedrin Once Liquid Gel is a physical-action lice treatment, pesticide-free - Formulated with dimethicone and Penetrol, it penetrates and effectively eliminates lice and nits - Easy application on dry hair, ensuring total scalp coverage - Works in just 15 minutes, making the lice removal routine easier - Easily washes out with shampoo and allows combing to remove residues - Suitable for adults and children from 6 months of age - Do not use on children under 6 months or on people allergic to the ingredients - Ideal for scalp health care and prevention of infestations