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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 Product information
• 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: 1L now treats up to 50m2 in a single application
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,
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.
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 organic Agrothrin 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 Agrothrin 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.
• Fast-acting: Rapid knockdown
Write an online review and share your thoughts with other shoppers!Reviewer: Elliot from Skegness
Worked with great results - Great value for money too! Highly recommended
No complaints at all! Fast delivery and a great flea spray - a good company all round!
I was mortified when I saw fleas jumping on and off our dog - I had to do something! I then found Pest-Expert and the rest is history!
As always, a first class service. Goods promptly delivered using a very reliable carrier. Formula C is a fantastic insecticide, I use it against a wide array of insects including fleas!
Having used all sorts of different products, I came across Pest-Expert and I'm so glad I did. The website was easy to use and order on, the product came quickly and worked effectively! Great service
Efficient fast service - delivered the next day. Good products that are very effective, we have not seen a flea since the first spray! Happy customer
Arrived as stated, have bought once again. You can not get better, for quality and service. The Pest Expert Flea Spray is the best about! Highly recommended!