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Head Lice

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Hedrin Once

Hedrin Once liquid gel and spray gel is a targeted treatment to kill head lice and their eggs. It contains the ingredients dimeticone and penetrol which work by impairing the mobility of the head lice so that they can’t survive rather than poisoning them which is the traditional way of killing head lice, and the penetrol helps to penetrate the solution to the eggs to kill them and prevent reinfestation. This method means that Hedrin Once is one of the few treatments that head lice can’t become resistant to, making it a highly effective treatment.


Hedrin once is an easy to use treatment, simply work the liquid gel or spray gel through the hair, leave on for a small amount of time, and rinse. It can be used by adults and children over 6 months of age and it’s ideal for those who have sensitive skin as it contains zero pesticides.



Prices start from £10.99 for one 60 ml bottle

£ 10.99 InStock
Online consulting and prescribing service
Dispensing of prescriptions and supply of medicine
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Dr. Daniel Cichi GMC No. 6163403

Dr Daniel Cichi has 20 years experience as a doctor and now he is a senior GP. He worked in A&E departments, GP surgeries and on cruise ships.

Shamir Patel GPHC No. 2049338

Shamir is a well-respected pharmacist with extensive experience running online pharmacies in the UK.

Dosage Instructions
Apply liquid gel to dry hair, and work it into the hair with a comb making sure to cover all parts. Leave the solution on for at least an hour then wash out with a non-conditioning shampoo and rinse thoroughly. The same process applies with the spray gel but it should be left on for at least 15 minutes.
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Delivery Charges

The following delivery methods are currently available within the UK: All orders are sent in discreet, plain packaging.

UK Standard Delivery, £1.99

Order before 12pm to have your order delivered using Royal Mail Tracked 48 Service

standard UK delivery within 3-5 working days

Additional terms and conditions apply.

UK Express Delivery, £2.99

Order before 12pm to have your order delivered using the Express delivery service* (deliveries are made Monday - Saturday)

If you order after 12pm, your order will be dispatched the next working day and will be with you within 48 hours once dispatched. This excludes weekends and bank holidays

Additional terms and conditions apply.

Royal Mail Special Delivery Next Day Anytime, £4.99 (This service includes Saturday)

Order before 12pm to have your order delivered using Royal Mail Special Delivery Service, which includes Saturday deliveries.

Additional terms and conditions apply.

Royal Mail Special Delivery Next Day Before 1pm, £7.99 (This service includes Saturday)

Order before 12pm to have your order delivered before 1pm next day using Royal Mail Special Delivery service, this also includes Saturday deliveries.

Additional terms and conditions apply.

Royal Mail Special Delivery Next Day Before 9am, £14.99 (This service includes Saturday)

Order before 12pm to have your order delivered before 9am next day using Royal Mail Special Delivery service, this also includes Saturday deliveries.

Additional terms and conditions apply.

DPD Next Day Delivery, £4.99 (Monday - Friday only. This service does not include Saturday)

Orders signed by the doctor before 12 noon the day before will be delivered the following working day

If your order is signed by the doctor after 12 noon, your order will be delivered within 2 working days

Additional terms and conditions apply.

DPD Next Day Delivery, by 12 Noon, £9.99 (Monday - Friday only. This service does not include Saturday)

Orders signed by the doctor before 12 noon the day before will be delivered by 12 noon the following working day

If your order is signed by the doctor after 12 noon, your order will be delivered within 2 working days

Additional terms and conditions apply.

DPD Next Day Delivery, by 10:30am, £14.99  (Monday - Friday only. This service does not include Saturday)

Orders signed by the doctor before 12 noon the day before will be delivered by 10:30am the following working day

If your order is signed by the doctor after 12 noon, your order will be delivered within 2 working days

Additional terms and conditions apply.

DPD Saturday Delivery, £14.99

Orders signed by the doctor before 12 noon the day before will be delivered the following Saturday

If your order is signed by the doctor after 12 noon, your order will be delivered within 2 working days

Additional terms and conditions apply

DPD Saturday Delivery, by 12:00am, £21.99

Orders signed by the doctor before 12 noon the day before will be delivered by 12:00am Saturday

If your order is signed by the doctor after 12 noon, your order will be delivered within 2 working days

Additional terms and conditions apply.

DPD Saturday Delivery, by 10:30am, £29.99

Orders signed by the doctor before 12 noon the day before will be delivered by 10:30am Saturday

If your order is signed by the doctor after 12 noon, your order will be delivered within 2 working days

Additional terms and conditions apply, please see below.

US and outside the UK

Unfortunately, we can't process orders from outside the UK at this time.


Terms and Conditions

Delivery options exclude Bank Holidays, public holidays and Sundays.All deliveries are subject to Doctor-4-u successfully receiving payment and prescription being approved by the doctor.

All purchases require additional approval, which will involve completion of an online questionnaire and any subsequent approval.

In stock