---
product_id: 48081113
title: "Formula ‘P’ Silverfish Killer Powder XL 300g pack size (HSE approved and tested - professional strength product)"
brand: "pest expert"
price: "€ 34.98"
currency: EUR
in_stock: true
reviews_count: 8
category: "Pest Expert"
url: https://www.desertcart.de/products/48081113-formula-p-silverfish-killer-powder-xl-300g-pack-size-hse
store_origin: DE
region: Germany
---

# Max strength Permethrin 25/75 XL 300g pack for extended coverage Kills silverfish & eggs on contact Formula ‘P’ Silverfish Killer Powder XL 300g pack size (HSE approved and tested - professional strength product)

**Brand:** pest expert
**Price:** € 34.98
**Availability:** ✅ In Stock

## Summary

> ⚡ Dominate your silverfish problem with the strongest powder on the market!

## Quick Answers

- **What is this?** Formula ‘P’ Silverfish Killer Powder XL 300g pack size (HSE approved and tested - professional strength product) by pest expert
- **How much does it cost?** € 34.98 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.de](https://www.desertcart.de/products/48081113-formula-p-silverfish-killer-powder-xl-300g-pack-size-hse)

## Best For

- pest expert enthusiasts

## Why This Product

- Trusted pest expert brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Rapid Action Kill:** Eliminate silverfish at every life stage instantly—no waiting, no compromise.
- • **Cost-Effective XL Size:** Double the powder, double the protection—outlast infestations without breaking the bank.
- • **Maximum Strength Formula:** Harness the power of professional-grade Permethrin for unbeatable silverfish control.
- • **User-Friendly Puffer Pack:** Precision application in hard-to-reach corners and power points with zero mess.
- • **Versatile Indoor & Outdoor Use:** Safe for use around electricals and delicate surfaces where sprays fail.

## Overview

Pest Expert Formula ‘P’ Silverfish Killer Powder is a professional-strength, HSE-approved insecticide containing maximum strength Permethrin 25/75. Designed for fast, contact-kill action on all silverfish life stages—including eggs—this 300g XL pack offers extended coverage and versatile use indoors and outdoors, especially around sensitive areas like electrical wiring. Its easy-to-use puffer pack ensures precise application, making it the go-to solution for lasting silverfish eradication.

## Description

Pest Expert Formula 'P' Silverfish Powder is a highly effective Silverfish killer suitable for Silverfish control in hard to reach areas and around electrical cabling. As silverfish are mainly active at night time, the best measures are prevention not only cure, Formula P contains the active permethrin, a broad spectrum insecticide, which will maintain its killing power for up to 12 weeks, ensuring that night or day your silverfish infestation will be in rapid decline. Formula P is a contact insecticide targeting all stages of the life cycle for various insect pests. As silverfish feed not only on food debris but also on starches and gums used to bind books and wood, they can often be found in homes, particularly in areas where using a water based spray would not be suitable such as around electrical cabling, electrical equipment and freshly laid woodwork.

Review: Seems effective - We did have an issue with silverfish turning up in several rooms: sticky moth traps placed on the floor caught them in large quantities. I then thought to give this power a try. While we were on holidays, I distributed the powder in corners and near walls. On return, we removed the powder again. I didn't see any dead silverfish lying around. However, the moth traps now are free of them and I have not yet seen any at night again, so I feel they improved the situation a lot.
Review: Gets rid of bed bugs - Works to get rid of bed bugs.

## Features

- Contains PERMETHRIN TECHNICAL 25/75 (52645-53-1). May produce an allergic reaction.
- Use biocides safely. Always read the label and product information before use.
- Very toxic to aquatic life with long lasting effects.
- Very toxic to aquatic life.
- ✅ THE STRONGEST SILVERFISH POWDER ON THE MARKET – Containing maximum strength Permethrin, this highly effective silverfish powder kills all stages of the silverfish lifecycle.
- ✅ FAST ACTING – Formula P is a fasting acting silverfish powder that kills the silverfish life cycle on contact – even eggs!
- ✅ PERFECT FOR USE IN THE HOME - This highly effective silverfish powder can be applied to any surface indoors or externally to eradicate silverfish infestations.
- ✅ EASY-TO-USE – Supplied in an easy-to-use puffer pack, Formula P is ideal to use around power points and other hard to reach areas.
- ✅ INCREASED COVERAGE – Pest Expert Formula P Powder contains 300g of maximum strength powder, which is twice the size of many competitors, making it the most cost-effective silverfish powder on the market.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B013EIB87I |
| Best Sellers Rank | 10,355 in Garden ( See Top 100 in Garden ) 148 in Indoor Multi-Insect Control |
| Customer Reviews | 4.2 4.2 out of 5 stars (326) |
| Date First Available | 24 Jun. 2015 |
| Manufacturer | Pest Expert |
| Package Dimensions | 24.7 x 6.7 x 6.5 cm; 300 g |

## Product Details

- **Brand:** Pest Expert
- **Item form:** Powder
- **Item weight:** 300 Grams
- **Specification met:** USDA
- **Target species:** Insects

## Images

![Formula ‘P’ Silverfish Killer Powder XL 300g pack size (HSE approved and tested - professional strength product) - Image 1](https://m.media-amazon.com/images/I/41UojbFYskL.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ Seems effective
*by "***" on 11 August 2025*

We did have an issue with silverfish turning up in several rooms: sticky moth traps placed on the floor caught them in large quantities. I then thought to give this power a try. While we were on holidays, I distributed the powder in corners and near walls. On return, we removed the powder again. I didn't see any dead silverfish lying around. However, the moth traps now are free of them and I have not yet seen any at night again, so I feel they improved the situation a lot.

### ⭐⭐⭐⭐⭐ Gets rid of bed bugs
*by A***R on 6 January 2026*

Works to get rid of bed bugs.

### ⭐⭐⭐⭐ Lots of dusting around but still powerful so far
*by B***R on 11 January 2022*

This product has only one hole and you have to shake it a lot for this powder. I have powder on my skirting board and below it. I have used it start of December in the bathroom and store cupboard. Have seen only a few silverfish in the beginning and also I had to reapply once in the bathroom because of the moist condition as I have seen two silverfish. I am pleased that I am not seeing any silverfish so far but I would prefer to buy the spray instead next time.

## Frequently Bought Together

- Pest Expert Formula ‘P’ Silverfish Killer Powder XL 300g pack size (HSE approved and tested - professional strength product)
- RugRemedyUK Silverfish Killer spray - 500ml Instant, long lasting, non staining, odourless Silverfish treatment and repellant for the home
- Karlsten Silverfish Killer Spray Fast Effective Quality Silverfish Killer 500 ml Non staining

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**Shop now:** [https://www.desertcart.de/products/48081113-formula-p-silverfish-killer-powder-xl-300g-pack-size-hse](https://www.desertcart.de/products/48081113-formula-p-silverfish-killer-powder-xl-300g-pack-size-hse)

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*Product available on Desertcart Germany*
*Store origin: DE*
*Last updated: 2026-03-01*