What is the type of treatment?

1 off treatment

How long does it take to treat?

5 minutes

What ages can use Hedrin Once?

6+ months

What sizes is Hedrin Once available in?

Liquid Gel 
100ml treats up to 4 heads
250ml treats up to 10 heads

Spray Gel
60ml treats up to 2 heads 
100ml treats up to 4 heads

What format does this come in?

Liquid Gel and Spray Gel

FAST ACTING

Kills head lice and eggs in just 5 minutes

PROVEN

Works with just one application

EASY APPLICATION

Put straight on dry hair

clinically tested on real heads

pesticide free

free from nasty odours

How do you use Hedin Once?

Hedrin Spray Gel: Always read the full instruction leaflet before you start. To begin, shake the bottle and spray straight onto dry hair. Work the solution in with a comb or fingers covering the hair from root to tip and leave in for 15 minutes. Once complete, apply shampoo to dry hair before wetting and washing out.

Hedrin Liquid Gel: Always read the full instruction leaflet before you start. To begin, shake the bottle and apply the gel straight onto dry hair. Work the solution in with a comb or fingers covering the hair from root to tip and leave in for 15 minutes. Once complete, apply shampoo to dry hair before wetting and washing out.

How does Hedrin Once work?

Hedrin Once (Spray and Liquid Gel) works with just one application in just 15 minutes by physically smothering head lice and eggs.

Does Hedrin Once kill eggs too?

Yes, Hedrin Once kills eggs too. The formulation contains Penetrol, which aids the penetration of the egg.

What ingredients are in Hedrin Once?

Hedrin Once contains Dimeticone, Nerolidol (Penetrol), PEG/PPG Dimeticone Co-Polymer and Silica Silylate.

How often can I use Hedrin Once?

Hedrin Once has been shown to work with just one application but a further check should be carried out one week after application to make sure that no head lice or eggs have managed to escape the coating.

Can I use Hedrin Once when I am pregnant?

Hedrin Once is unlikely to cause any ill effects to pregnancy or breastfeeding if used as directed. However, if you’re unsure consult a doctor or pharmacist.

Can you use Hedrin Once on coloured hair?

Hedrin Once has not been tested for use on permanent, semi-permanent or temporary hair dyes. We recommend applying the formula to a small test area of hair before commencing treatment. If in doubt you can always consult a hairdresser. It is not advisable to use Hedrin Once directly before colouring or bleaching because it may prevent the colour taking to the hair.

Can you use Hedrin Once on hair extensions?

Hedrin Once has not been tested for use on hair extensions meaning it’s difficult to know whether products will affect them. Hair extensions could block products from coming into contact with head lice, but not necessarily though. If in doubt consult a hairdresser.

Can you use Hedrin Once on beards?

Hedrin Once has not been tested on beards as its intended purpose is for application on hair and scalp. However, so long as the application comes into contact with head lice or eggs, it should fulfil its intended use.

After using Hedrin Once are eggs still on the hair?

If the correct process has been followed when using Hedrin Once, eggs should not still be on the hair after use. When working the solution into the hair, it is recommended to use fingers or a comb to remove head lice and eggs. 

What age can I use Hedrin Once?

Hedrin Once is suitable for adults and children 6 months and over.