Hedrin’s efficacy is a result of its active ingredients, Dimeticone (contained in Hedrin 4% Lotion and Hedrin Once) and Activdiol (contained in Hedrin Treat & Go and Protect & Go). All formulations are patented and have been shown to be effective at killing head lice in clinical trials and even work on lice that have developed a resistance to traditional pesticide treatments.
Head lice have a unique strategy of water management. Instead of producing urine they eliminate excess water via tiny passages in their exoskeleton called spiracles. The active ingredient Dimeticone, a silicone oil, disrupts this process of water management by coating the lice, causing them to become permanently immobile, and blocking the spiracles preventing them from getting rid of excess water. As a result, any lice that have recently fed suffer from death by gut rupture and, the ones that haven’t, die of starvation.
Put it on
Apply straight onto dry hair. Shake the bottle well before use. Just spray foaming mousse into your hand and rub or comb it into the hair until it’s covered from root to tip. Avoid contact with the eyes
Leave it in
Let the hair dry naturally (or use a hairdryer if you prefer), then everyone’s free to get on with their day. Leave it in at night if you like. The mousse needs to stay on for at least 8 hours.
Rinse out
Rinse or shampoo it out, you’ll find it comes out really easily, and the dead lice wash out too!
Repeat after 7 days, repeat these simple steps again.
Octane-1, 2-diol, PEG-6 caprylic/capric glycerides, water
Warning: Keep hair away from sources of ignition, especially naked flames and burning cigarettes, whilst being treated with Hedrin. Treated hair can readily burn if ignited.
Hedrin solution is applied to the hair and scalp and is for external use only.
Do not use if you are sensitive to either of the ingredients in Hedrin.
Children under 6 months should only be treated under medical supervision.
Take care if accidentally spilled as Hedrin may cause a slip hazard.
