Barrier Livestock Louse Powder

Made in the UK
Barrier Livestock Louse Powder from Pegasus Health
500 g shaker£10.62
10% discount - was £11.80, saving £1.18
5 kg£75.78
10% discount - was £84.20, saving £8.42

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Our unique formulation of Barrier Livestock Louse Powder contains a safe-carrier that does not cause carcinogenic effects. Designed to be applied directly to all animals it is suitable for use in organic farming systems, as it falls into the exempt category of products which use only plant oils as active ingredients, as listed in Annexe IIB (Pesticides) of Council Regulation (EEC) No 2092/91 (as amended). It successfully rids animals, including cattle, horses, goats, rabbits and other small pets of both sucking and biting Lice; which are normally dealt with separately, and will help to prevent reduced growth rates, which can result from Lice infestation.

In accordance with the Biocidal Products Directive, regulations require any product which holds itself out as any form of repellent to secure an approval and licence number from the Health & Safety Executive (HSE). This approval requires the active ingredient (Ai) to be listed on the label together with the amount of Ai being used. Barrier Animal Healthcare secured the necessary approval and the licence number 8712 for this product.

Barrier Livestock Louse Powder is specifically designed to be applied directly to all animals and is suitable for use in organic farming systems, as it falls into the exempt category of products which use only plant oils as active ingredients, as listed in Annexe IIB (Pesticides) of Council Regulation (EEC) No 2092/91 (as amended).

Can be used as a protection against or where there is existing infestation.

Barrier Livestock Louse Powder can be applied to most animals including cattle, horses, goats, rabbits and other smaller pets that are over 7 days old. It can be used on both sucking and biting lice. It works at repelling the Lice over a six week period. Not suitable for to use on pigs because there is not enough hair to hold the powder.

Lice can usually be found on the neck, shoulders, along the spine and under the base of the tail, however, the entire body can be affected in heavy infestations.

These small wingless insects are present all-year round and especially noticeable amongst housed animals from the end of autumn through winter to spring. Because of its contagious nature, louse infestation spreads most rapidly when animals are in close contact.

The life cycle is complete within three to four weeks. A female louse lays around 50 to 100 eggs (nits), which she attaches to the hair fibres. They hatch into nymphs after about ten days and develop into adults after a further two to three weeks - although human lice have been known to mature within eight days of hatching.

It is just possible to see adult lice with the naked eye. By carefully parting the hair, movement can normally be seen at the base of the hair. They are grey/brownish/yellow in colour and the size of a pinhead.

Biting lice are by far the most common, they tend to be smaller than a blood sucking louse - the largest of species would be about 1cm long although most are about half this size. Biting lice can't suck blood and can be more easily identified by their blunt head. They are slow moving and can be easily overlooked. They feed on particles of skin, fur, and feathers and their scavenging produces intense irritation causing crusty, scurfy areas that the animal will bite and scratch in an effort to alleviate their discomfort. An infected animal often takes on a motheaten appearance. Biting lice do not affect humans.

Blood-sucking Lice are larger than biting lice, they have a narrow head with reduced eyes and shorter antennae. The mouthpart is modified for blood-sucking and retractable into the head when not in use. They feed on blood by piercing the skin with their mouth. They can cause severe anaemia and infested animals can rapidly lose weight and become prone to other illnesses. Lice will breed in straw, particularly barley straw so it is essential that where there is a lice infestation, bedding of this nature is treated or destroyed.

This strong formulation contains concentrated plant derivatives that act as a slow release to give up to six weeks protection with one application, depending on weather conditions. Barrier Animal Healthcare is the only company to include sterilizable maize powder as the base carrier for the louse powder and unlike other carriers it will not be metabolised via cuts and grazes and so will not form granulomas.

There are only three types of lice that seem to affect horses. One is the sucking louse - Haematopinus asini, which can usually be found around the base of the mane and tail. The other two species are biting lice and closely related - pilosus and Damalinia equi. All of them cause poorness of condition, itching and loss of hair.

In cattle the sucking lice mainly affect the head and shoulders. Species associated with cattle are Linognathus vituli, Haematopinus eurysternus, Hyperolius tuberculatus. In addition one species of biting lice Damalinia bovis occurs and can affect the whole body.

Barrier Livestock Louse Powder is very cost effective and the most environmentally friendly product of its kind for by the animal and the user.

Barrier Livestock Louse Powder can last for up to six weeks but reapplication may be necessary where wet weather conditions apply.

No materials have knowingly been included in this product that may contravene current FEI and HRA rules.

Barrier Livestock Louse Powder contains sterlisable maize as the base carrier. Unlike other carriers, it will not be metabolised via cuts and abrasions, scabs, grazes, dry and flaky skin and so form granulomas.

Always ensure that the cap is tightly closed after use. Store in a cool dry place.

Use biocides safely. Always read the label and product information before use.


After identifying that lice is the problem. Thoroughly cover the animal with the product, paying particular attention to the neck, under the elbows, legs, along the back and at the base of the tail. Use a soft brush to ensure that the product is thoroughly worked into the coat and down to the base of the hair.

Where heavy infestations exist, repeat application after 7 days. Although lice can only survive for a few days off their host it is important to remember to treat all bedding, housing etc at the same time to prevent re-infestation.

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