Hedrin Once Spray Gel


Hedrin Once Spray works by physically providing a coat to the lice. The coat prevents the lice from moving and feeding. It also prevents them from excreting excess waste water. Both actions effectively kill the head lice. Hedrin Once Spray only requires one 15 minutes treatment.

  • Effective treatment for head lice
  • Single application
  • Easy to use
  • Genuine medication
  • All drugs sourced in the UK
Order within
to receive your order Tuesday 18th June
In Stock
Best Seller
Discreet Packaging
Subscribe & Save
Quick & Easy
Free shipping over £50
Save 10% with Plus
Learn more
inc. VAT
Save 10% with Plus
Learn more

The Hedrin Once Spray is the easy way to eliminate head lice. It is available without prescription from a local pharmacy. The spray version is ready assembled for easy and instant use. It provides a contactless way to apply the lotion to the affected areas. Hedrin Once Spray is odourless, skin friendly, and contains no organophosphates.

Hedrin Once Spray is a water-based treatment that rinses out of the hair without leaving any greasy residue. When dry, it remains on the child’s hair while they play, go to school, or sleep. It requires two applications to stay for eight hours or overnight, seven days apart.

Hedrin Once Spray works different from how conventional insecticides work on head lice. It does not kill the parasites through the use of chemicals, the dimeticone in Hedrin Once Spray works by physically providing a coat to the lice. The coat prevents the lice from moving and feeding. It also prevents them from excreting excess waste water. Both actions effectively kill the head lice. Head lice cannot develop resistance to the lotion because of the way it works.

Hedrin Once Spray does not kill the eggs, making a repeat of the treatment necessary after seven days to kill the lice that have hatched from the eggs that survived the first application.

If the head lice come back, you can repeat the treatment right away.

Hedrin Once Spray effectively kills the head lice by covering them with a coat. It is effective in killing the head lice without the risk of insecticide that may harm the health of the user.

All members of the family with head lice should be treated with Hedrin Once Spray on the same day in order to avoid re-infestation.

Hedrin Once Spray should be applied to dry hair. Apply Hedrin Once Spray carefully over all the hair and the scalp. Massage the lotion well from the roots to tips until the hair is completely wet. The amount of Hedrin Once Spray needed will depend on the length and thickness of the hair.

To apply Hedrin Once Spray to long hair, make a small parting and apply a few drops of the lotion along the hair, spreading the lotion evenly along the length of the hair. Repeat this process with numerous small sections until the whole scalp and hair has been covered.

The Hedrin Once Spray spray is easier to apply. Hold the spray about 10 cm from the hair and spray evenly over the whole head until fully saturated.

Exercise care in preventing the lotion to get in the eyes or inside the mouth or nose. If the lotion will accidentally get in the eyes, they should be rinsed immediately with plenty of water.

Leave the hair to naturally dry in a warm but well-ventilated room. Avoid using a hairdryer

Wash the hair with normal shampoo after 8 hours or overnight. Rinse thoroughly and repeat.

Use a fine-toothed nit comb in removing the dead lice and eggs from the wet hair. Separate the hair into several sections and comb thoroughly from root to tip. Clean the com as you go to remove the dead lice and eggs.

Hedrin Once Spray should be applied to the head and scalp in two applications. Each application should last for 8 hours or overnight. Leave 7 days in between the two applications.

Medicines and their possible side effects affect individual users in different ways. Not everyone who uses Hedrin Once Spray will experience the possible side effects.

The common side effects of the use of Hedrin Once Spray are as follows:

  • Skin irritation.
  • Flaking of the scalp.
  • Itching or irritation around the eyes.

If you experience other side effects, which you believe to be associated with your use of Hedrin Once Spray, consult your doctor.

Hedrin Once Spray should not be used on children under six months of age, except upon the advice of a doctor.

Do not use Hedrin Once Spray if you or your child are allergic to any of its ingredients.

This product is flammable. Do not use it near naked flames or source of heat. Refrain from smoking during the treatment. Hair treated with Hedrin Once Spray will readily burn when ignited.

Hedrin Once Spray is not absorbed through the skin and be used safely by pregnant women or breastfeeding mothers. However, it is still best to get advice from your doctor before using Hedrin Once Spray if you are pregnant or breastfeeding.

Hedrin Once Spray does not affect other medicines. It is fine for you or your child to get Hedrin Once Spray treatment while using other medicines.

You can safely buy Hedrin Once Spray online at UK Meds, without the need for a prescription or consultation with a medical professional, however you should adhere to the advice given in the patient leaflet enclosed.


Content author

Scott Weaver

Medical Content Writer • Bachelor of Arts Degree

Scott is an experienced, skilled content writer dedicated to creating helpful and accessible medical content for UK Meds.

Read more

Here to help you

Our Customer Service is available Monday to Friday 9am - 5pm. If you need urgent assistance, do not use this service. Call 111, or in an emergency call 999. Visit our help section