Frequently Asked Questions

We have produced some answers to our frequently asked questions for our customers who are interested in using Leucillin as part of their biosecurity when they get the go ahead to return to work with animals. Every situation, council and business will be slightly different. We would suggest keeping up to date with the protocol being produced by the CFSG (Canine & Feline Sector Group) for pet business and conducting your own risk assessment in accordance with both government and local council guidelines.

Will Leucillin kill COVID-19?

COVID – 19 is the name of the disease caused by the latest strain of coronavirus. The virus is called SARS-CoV-2 and Leucillin has been shown to be effective against this in lab testing. The test is called EN14476:2013 A2:2019 Annex A*

Will Leucillin give me full protection against COVID-19?

Nothing can give you full protection. Leucillin is a pet safe topical spray which can be used as part of a biosecurity routine if required.

What tests have Leucillin undertaken?

Leucillin has been tested to the following EN standards.

EN13727, EN1656 EN 16437, EN16437, EN1657, EN14476, EN14476:2013 A2:2019 Annex A*

Leucillin is therefore effective against all enveloped viruses as defined in EN14476:2013 A2:2019 Annex A* viruses, this therefore includes all coronaviruses and SARS-CoV-2.

Can Leucillin be used to spray a pet before collection/drop off?

Leucillin is an extra tool you can use to protect against cross contamination risk. It is harmless to tissue so is suitable for all external uses. This includes directly in eyes and ears and for sensitive skin or pets that suffer from allergies. You can spray Leucillin on the animals coat and it will kill bacteria, virus (including the virus SARS-CoV-2, that causes COVID -19 – please see above) and fungi. For most circumstances it’ll be sufficient to spray over the whole coat until damp as part of your protocol to reduce risk.

Will my local authority accept the use of Leucillin as part of my risk assessment when I am given the go ahead to reopen?

UK Government approved test criteria for SARS-CoV-2: EN 14476:2013 A2 2019 vaccinia virus enables claims for efficacy to be made against Wuhan virus.

We have a data sheet which has been sent to all of our direct accounts which can be shown to your local council should you need to provide further details before trading. If your council have any questions about Leucillin we will be happy to help them or you directly during office hours. and 0345 548 9800

Can Leucillin be used on people?

Leucillin is marketed for use on animals. Leucillin is safe for all mammals and humans are mammalian.

Should I spray Leucillin on the pet before handing back to owner?

If your business risk assessment finds this a necessary process for cross contamination reduction then you can spray Leucillin onto a pets coat, paws and muzzle until damp before handing back to their family. The coat will dry and the product leaves no residue.

How long does Leucillin take to work?

A maximum of 2 minutes on contact with the pathogen.

I want to see a double blind placebo clinical trial. Do you have that?

The above testing protocol is used for medicines. Leucillin is a safe disinfectant and therefore regulated as a biocide. It is not a medicine. It is therefore proven to be effective for its use by testing in a laboratory. We test against international government recognized standards.

Is Leucillin tested on porous materials?

Yes the bacterial and fungal tests include this.

Can I use Leucillin to disinfect my premises and equipment?

Whilst Leucillin will kill any bacteria, virus’ and fungi on contact on any surface, this is not it’s primary function, other sanitisers are more cost effective and appropriate in this case.

Leucillin is formulated for the safe application directly on skin for all mammals birds and reptiles.

Can I use Leucillin on leads and collars?

Leucillin is safe to use in regard to physical items, however because the product oxidises it can remove natural dyes in clothing items, this should not be a problem with pet collars and leads as these items are produced for the hardened wear of pets.

Will Leucillin work on a soiled pet?

In the case of vets, dog walkers, day care, rescues and grooming there may be an occasion that you might need to spray Leucillin onto a coat that has physical debris, for example mud. Leucillin has been tested as effective in porous conditions however you will need to use appropriate common sense on a case by case basis and remember it can only kill pathogens that it can contact. PPE and a bath, and shampoo maybe more appropriate for some circumstances.

Where can I get further information for my business?

Please by aware these are likely to change and update on a regular basis.
We recommend keeping up to date with the guidelines produced by the Canine & Feline Sector Group as they relate specifically to safe working in the pet business:

For government guidance about safe business practice

For any specific Leucillin related queries please email or call us. We are open 9am – 5pm Monday – Friday and can be contacted via or 0345 548 9800