The original Hedrin product The only licensed, physically acting treatment in the UK for head lice Available without prescription from your local pharmacist Requires two overnight applications, seven days apart Available in lotion and spray from pharmacies nationwide Contains Dimeticone. Always read the label Important Safety Advice Keep hair away from sources of ignition, especially naked flames and burning cigarettes, whilst being treated with Hedrin 4% lotion. Treated hair can readily burn if ignited. Take care if accidentally spilled as Hedrin may cause a slip hazard.