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Pest Expert Formula C+ Flea Spray 5L

£31.95 incl. VAT
£26.63 excl. VAT

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1 £31.95
2 5 £30.95
6 £29.95


Pest Expert Formula C+ Advanced Flea Killer Spray is the new and improved formulation of our bestselling original product, Formula C. Formula C+ Advanced is a ready-to-use triple action flea killer, with a long-lasting residual that maintains flea control for up to 12 weeks. Its unique combination of actives make it the most powerful flea spray available to the amateur market, and the ultimate insecticide for anyone wanting fast and effective eradication of any size flea infestation.

•    Fast-acting: Rapid knockdown
•    Low-odour: No smell during or after use
•    Non-staining: Will not damage carpets or rugs
•    Long-lasting: Residual maintains flea control for up to 12 weeks
•    Increased coverage: 5L now treats up to 250m2 in a single application

Product Information
As market leaders, our latest innovative formulation now incorporates two additional active ingredients. The first is pyriproxyfen, a ground-breaking insect growth regulator that cleverly works by halting the progression of the flea’s lifecycle development from juvenile to adult, resulting in an inability for the flea to reproduce, and therefore ensuring there is no increase in numbers.
The second is the addition of chrysanthemum cinerariaefolium extract, a natural pyrethrum, which when combined with the existing concentration of cypermethrin has a synergistic effect, helping to deliver an even faster knockdown and longer-lasting residual for ongoing control of all lifecycle stages.

With approval for both professional and amateur use, this professional-grade product can also be used safely in the home. Formula C+ Advanced is easy to use and can be applied directly to carpets and rugs as it is water-based and non-staining, so will not cause any damage.

Being low odour and free from solvents, Formula C+ Advanced is perfectly suitable for use in homes with children and/or pets, provided they are kept out of the area being treated until all surfaces are dry (2-3 hours).

Formula C+ Advanced now offers an increased coverage of up to 50 sq m per litre, so a 5L canister will be sufficient to treat a surface area of up to 250 sq m.

One application should be enough for a successful flea treatment. However, to eradicate a particularly heavy flea infestation then a second application may be required.

As a broad spectrum insecticide, Formula C+ Advanced is also highly effective against a wide range of flying and crawling insects including bed bugs, cockroaches and moths.

To achieve a thorough and professional application, we provide a free trigger hose sprayer with the 5 Litre bottle (one per order).

Directions for use
Apply Formula 'C+' spray to affected areas, floors and carpets, paying particular attention to the edges of the room, where fleas often lay their eggs.  

Avoid cleaning or vacuuming the treated areas for as long as possible as this will remove the protective residue.

Do not apply directly to pets or pet bedding.

For a more comprehensive treatment, fumigation devices such as Pest Expert Formula 'P' Flea Bombs should also be used.  For safe treatment of pet bedding, please see our Natural Insect Killer Powder.

For the best value for money please see our Flea Kits, which contain a combination of our best flea killer products, including Formula 'C', Formula 'P' Flea Bombs and Natural Insect Killer Flea Powder.

Treatment of the home should always be carried out alongside treatment of your pet(s), especially if this is the source of the initial infestation. Always see a qualified veterinarian for advice on the best flea products for your pet.

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Customer Reviews

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Reviewer: JB from Liverpool    5 Stars

Been using this for over 2 years and still no fleas

I run a dog business Breeder / breeder services I treat my dogs every 3 months with Brivacto and my house every 12 weeks.

With all the dogs that come and go and the occasional one with fleas I have not had a single infestation take hold.

I will continue to use this system as I only seem to use 2l each time I treat my house and it works.

Reviewer: Noel from London   5 Stars

Bought the 5L container but only needed half as its so good!!! Fleas were perishing left, right and centre! Fantastic stuff! Pest Expert, you really know how to make insecticides!

Reviewer: Tommy from Birmingham   5 Stars

See ya fleas and good riddance! So extremely happy with this spray, it was cheap and effective. Happy days!

Reviewer: Jim from Manchester   5 Stars

Best flea spray the UK end of! I have a lot of dogs so know a lot about fleas - this product works better than anything I've used before

Reviewer: Heidi from Binbrook   5 Stars

Good product! The product is easy to use and is effective - 5 stars from me!

Reviewer: Mick from Hartlepool   5 Stars

Job done! 5L across the house and the fleas have been obliterated! Fantastic product, just what I needed.