The head lice are small (2.0 to 4.7 mm), wingless parasitic insects, which live on the human scalp. They feed exclusively on blood. The flattened, covered with bristles, body of the parasite is greyish colour. Lice move among the hair using three pairs of limbs. On all feet they have claws, which, together with a special, finger-like process, form a strong prehensile apparatus. The segments of the trunk and abdomen are provided with spiracles – the respiratory apparatus of lice.

Due to the size of lice and build of lice’s breathing apparatus, the key parameter of an effective treatment is quick and even spreading on the scalp and hair. Thanks to innovative formula provided by o-effect® technology, NITOLIC® is effective against lice and eggs (nits).

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Life cycle of head lice

eggs are laid

nymphs hatch

nymph development (3 moultings)


eggs are laid

end of natural life


Nits are lice eggs attached to hair by a strong cement-like substance. The nits are about. 0.8 mm long, are oval and elongated, of grey-pearly colour and have a special lid on the eggshell, which young lice lift when they hatch.

NITOLIC® nit remover

NITOLIC® Nit Remover emulsion facilitating removal of lice and nits. NITOLIC® Nit Remover dissolves the cement-like substance and makes removing of eggs during combing easier.

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Survival of nits off the host

Louse is so strongly connected to its host that outside the human body is dies within 24-48 hours. However, nits can live off the host up to 14 days. Therefore, in order to eliminate head lice, it is so important to have a comprehensive approach which is provided by NITOLIC®.

NITOLIC® Wash laundry additive prevents head lice from spreading.

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How do head lice spread?

Lice live only on human heads. They cannot jump or fly and they are not carried by pets. The head lice spread by close contact, they simply crawl when the head they’re living on comes into contact with the head of another person. Full of such opportunities are playgrounds, leisure activities, camping sites and summer camps. People can be infested with head lice also at school where lice have a good opportunity to spread. Often infestation occurs through shared use of combs, brushes and hair elastics, pillows, towels, hats, scarves and clothing.

To provide complete lice elimination, the treatment needs to be administered at the same time to all members of the family/ friends who could come into contact with the infested individual.

How to diagnose infestation with head lice?

Head lice detection, step by step

We concentrate the research on looking for live insects, which are moving on the head.
What we need is:

Ordinary comb

Fine-tooth comb for removing lice and eggs

White tissues

Good lighting

About 15 minutes to check medium length hair

About 1 hour to check long and thick hair

First comb the hair thoroughly with an ordinary comb (hair can be wet or dry).
If your hair is long, divide it into sections to facilitate next activities.
Comb successive strands with fine-tooth comb starting from the root of the hair.
After combing each of the strands, check the teeth of the comb under good lighting.
Finding of living, moving lice on the teeth of the comb means that head lice have been detected. It is easier to find moving insects on white tissue.