Hedrin Treat & Go Spray 60ml

Hedrin Treat & Go Spray 60ml


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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.

Experiments carried out at the Medical Entomology Centre showed how Hedrin 4% lotion kills lice.

Like all insects, head lice are covered by a waxy protective coating. It is this waxy layer that helps the louse maintain its delicate internal water balance, preventing too much water from evaporating.

The Activdiol in Hedrin works dissolving away this waxy cuticle, causing death by dehydration.

Because Dimeticone and Activdiol kill lice with a ‘physical’ mode of action unlike a traditional chemical pesticide, you can use them as often as you like without the danger of the lice becoming resistant. Hedrin products are also free from solvents that can cause problems in some asthma sufferers.


Hedrin Treat & Go is suitable for adults and children aged 6 months and over.

If a member of the family has live head lice, check the other family members and treat all cases at the same time.

Apply straight onto dry hair, following the instructions on the pack. Shake the bottle well before use then rub or comb into hair until it's covered from root to tip.

Let the hair dry naturally (or use a hairdryer if you prefer).  Can be left on during the day or night for at least 8 hours.

Rinse or shampoo it out, you'll find it comes out easily.

Repeat after 7 days.


Do not use Hedrin Treat & Go if you are sensitive to any of the ingredients listed inside the leaflet.

If you accidentally swallow some of the spray you should consult a doctor as soon as possible.  Take the pack with you to show which product you have swallowed.

For external use only.

Do not apply to broken skin.

Avoid contact with the eyes.  If it accidentally comes into contact with your eyes, flush with water.  If irritation persists seek medical advice.


The active ingredient (Dimethicone) is carried in Cyclomethicone (a silicone commonly used in hair conditioners) which evaporates, leaving the Dimethicone coating the louse.

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