Frequently Asked Questions

You will find the answers to frequently asked questions here. If your answer is not here, please contact us.

Information about lice and nits

What is head lice?

Head lice are blood-sucking insects without wings. They are parasites that feed on human blood. Head lice and eggs prefer warm and dark places on the scalp. Therefore, we often see them behind the ears, along the hairline and on the neck. The color of the louse can range from sand-colored to almost black. After they feed on blood, they discolor to dark red. The life cycle of head lice has three stages: eggs, nymphs and adult lice. Female lice stick their eggs in the hair no more than 1 mm from the skull. The eggs take 7 to 10 days to hatch. The development hereafter from nymph to aphid takes about 7 days. The adult female louse can lay up to 10 eggs per day.

What measures should I take against head lice?

Research has shown that head lice are primarily transmitted from person to person rather than through the environment. This means that additional measures such as hot washing of clothes and bedding are not necessary. Treatment with Licener is sufficient against your own or your child’s head lice. Especially check the hair of persons in the immediate vicinity and also see the current guidelines of the National Institute of Public Health (RIVM) around head lice to prevent recurrence of infection.

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Informatie over het product

Why Licener anti-lice shampoo?

Licener works on the basis of natural Neem extract, which eliminates lice and nits in one 10-minute treatment. It is the first shampoo that eliminates the need for combing and post-washing.

Does Licener work against lice eggs (nits)?

The treatment also kills the nits. However, dead nits or remains may remain in the hair after treatment. Fortunately, these dead nits left behind no longer pose a risk of infection. You can comb them out for hygienic reasons.

Is Licener suitable for young children?

Licener has been found suitable for children as young as 2 years old.

Can lice become resistant to Licener?

No. Licener does not act as a poison but mechanically suffocates the lice. The lice cannot develop resistance to this, unlike substances with pharmacological action. So Licener also works against lice that are already insensitive to insecticides!

How much Lice shampoo do I need per person?

The minimum amount depends on the length, thickness, and density of the hair. For long hair, 100ml of Licener lice shampoo is recommended. For short hair, 50ml may be sufficient for effective treatment. In any case, make sure that all the hair and the entire scalp are covered with shampoo.

Can I combine Licener with other shampoos?

For optimal effect, do not mix Licener lice shampoo with other hair products. However, it is not a problem to wash the hair with normal shampoo before or after. Preferably, do not use Licener in combination with other lice shampoos, as they may cause irritation of the scalp and undermine its effectiveness.

Is Licener highly flammable?

Licener is one of the few anti lice shampoos that does not use the chemical Dimethicon and is therefore mild, non-greasy and non-flammable. Licener kills lice and nits by flooding the louse’s respiratory tracts using the natural Neem extract.

Should I comb out the lice afterwards?

Once the lice are killed, they should fall out of the hair on their own. There is no need to comb extensively with a lice comb. It is possible that some empty egg casings or dead nits may remain stuck to the hair after the treatment is completed. If desired, these remnants can be removed by hand or with a fine comb.

Is Licener strong stinging when used?

No, Licener is a mild lice shampoo and does not sting any more than normal shampoos.

Does Licener have an unpleasant odor?

No, Licener has a neutral scent and is unscented.

What's in the Licener anti-lice shampoo?

The active ingredient in Licener is the natural Neem extract, derived from the Neem tree.


Neem extract, water, polyglyceryl-3 caprate, cocamidopropyl betaine, glyceryl aureate, glycerin, lauryl glucoside, dicaprylyl ether, lauryl alcohol, benzoic acid, sorbic acid, dimethyl gluate and dimethyl adipate.