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Pest Expert Formula C+ Bed Bug Spray 1Ltr

£11.95 incl. VAT
£9.96 excl. VAT

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Pest Expert Formula C+ Advanced Bed Bug 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 bed bug killer, with a long-lasting residual that maintains bed bug control for up to 12 weeks. It's unique combination of actives make it the most powerful bed bug spray available to the amateur market, and the ultimate insecticide for anyone wanting fast and effective eradication of any size bed bug infestation.

  • Fast-acting: Rapid knockdown
  • Low-odour: No smell during or after use
  • Non-staining: Will not damage mattresses, bedding or carpets
  • Long-lasting: Residual maintains bed bug control for up to 12 weeks
  • Increased coverage: 1L now treats up to 50m2 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 bed bug's life-cycle development from juvenile to adult, resulting in an inability for the bed bug to reproduce and therefore ensuring there is no increase in numbers. 

The second addition is 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 al lifecycle stages.  

Pest Expert Formula 'C+' is a highly-effective bed bug killer spray that delivers a rapid knockdown and helps maintain bed bug control. The invisible residue not only kills on contact but also remains effective for a number of weeks, offering longer-lasting protection.

Formula 'C+' Bug Spray is water-based so is safe for direct application to frames, mattresses, bedding and carpets and will not cause them any damage.

Formula 'C' is low-odour and free from solvents, so it is perfectly suitable for bed bug treatment in all contexts, including hotels and B&Bs, hospitals and care homes, and households with children and/or pets, provided they are kept out of the area being treated until all surfaces are dry (2-3 hours).

The active ingredients in Formula 'C+' are all broad spectrum insecticides that are effective against a wide range of flying and crawling insects.

Each 1-litre trigger spray is sufficient to treat an area of approx 50m2. As bed bugs can be difficult to eradicate, to successfully control an infestation we would recommend carrying out a repeat treatment approx 2 weeks after the initial treatment. For particularly heavy infestations then several applications may be necessary.

Directions for use
Strip beds, and wash bedding on a high temperature.

Apply spray to affected areas, paying particular attention to the joints and between slats on frame beds and around headboards and the stapled edges of hessian covers on the underside of divans.

Formula 'C' can be lightly applied to mattresses (DO NOT SOAK), but must be left to dry completely before putting bedding back on. Inspect and treat around stitching and underneath any buttons.

Also treat bedside cabinets and the carpet and/or skirting boards around the bed.

Repeat treatment after 2 weeks.

To successfully eradicate an infestation, carrying out a bug treatment using a combination of insecticides delivers a better knockdown. So for the best results, Pest Expert Formula 'C' Spray should be used in combination with our other products such as Rentokil Insectrol Spray and Formula 'P' Bed Bug Powder and Formula 'P' Foggers or Smoke Bombs

For unbeatable value for money please see our
Bed Bug Treatment Kits, which contain a combination of our best bug killing products, carefully put together to deliver optimal results.

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Customer Reviews

Write an online review and share your thoughts with other shoppers!

Reviewer: Elena from Newcastle   5 Stars

Easy to use and really does work! Thank you Pest-Expert for helping me when I really needed it 5*****

Reviewer: Donovan from Wrexham   5 Stars

Stayed in a hotel and brought the little blighters back to my home! Formula C has helped me rid my home of bed bugs and I am a happy customer!

Reviewer: Alan from Luton   5 Stars

1 spray and the numbers have already reduced, really happy with the results so far!

Reviewer: Saheed from London   5 Stars

Good medicine for the bed bugs! No bites for 3 weeks - happy customer!

Reviewer: Harry from Exeter   5 Stars

Fab product! Does what is says on the tin - long lasting residue too!

Reviewer: Mohamed from East London   5 Stars

good quick sevice came the day thay said it would and the product was effective against bed bugs - will use them again!

Reviewer: Elizabeth from Winchester   5 Stars

Super Quick delivery, great quality and well packed thanks a lot!!!!

Reviewer: Harry from Saxilby   5 Stars

Delighted! Excellent transaction with super fast delivery - see ya later Bed Bugs!

Reviewer: Carlos from Lincolnshire   5 Stars

As described. Arrived fast. Well packed. Perfect transaction. A+

Reviewer: Samantha from Northampton   5 Stars

Received the item pretty quick and it was as described. Well pleased.

Reviewer: Keith from South London   5 Stars

Informative website, great products and fast delivery - Pest Expert, thank you!

Reviewer: George from Livepool   5 Stars

Was getting bitten every night for two weeks, sprayed Formula C and no more bites - thank you so much!

Reviewer: David from Hartlepool   5 Stars

By far the best spray we've used for bed bugs, we've tried many over the years but Formula C really works!!

Reviewer: Shelagh from Bradford   5 Stars

The best medicine for bed bugs, killed them off quickly, would recommend Pest Expert to anyone!

Reviewer: Amir from London   5 Stars

Great item - Many thanks..

Reviewer: Mohammed from Luton   5 Stars

Just what was required great service fast delivery good communication

Reviewer: Will from Leeds   5 Stars

Great product, works well, super fast delivery 5*

Reviewer: Paul M from Dartmouth   5 Stars

Good quality items , would buy again

Reviewer: David from Castleton   5 Stars

Excellent service - the product arrived within 24 hours of ordering and at the time noted by the company. I had a small query re how to use the product which customer service quickly resolved. Final bonus is that the product worked!

Reviewer: Anthony Portal from Oldham   5 Stars

The goods were as specified, delivered promptly and put into use within 10 minutes of arrival I have no hesitation in recommending this firm

Reviewer: Jo from Doncaster   5 Stars

I have ordered twice in about a week from this company. The website is very easy to navigate, and you constantly get updates about your products. They are shipped the next day and you get a one-hour time slot of delivery. All the products have been as described and well packed.

This is the only pest company I would use and recommend as they are so efficient, and the products are great. I have even recommended them to a work colleague.