Suspend SC is a long-running deltamethrin concentrate used for broad-spectrum pest control and perimeter barriers. For bed bugs, the honest caveat is that deltamethrin is a pyrethroid β€” the class bed bugs are most resistant to β€” so it works best as one layer, not a standalone cure.

Key Takeaways

  • Deltamethrin (a pyrethroid) β€” broad-spectrum and long-lasting, but the class bed bugs most often resist.
  • Better for general pests and barriers than as a sole bed bug treatment.
  • Residual β€” keeps working for weeks on treated surfaces.
  • No single product clears bed bugs. Combine it with laundering, encasements, steaming, and monitoring β€” the full plan.
Top PickSuspended SCSuspended SCSuspend Polyzone AlternativeSuspend Polyzone Alternative
Active IngredientsDeltamethrinDeltamethrin
Coverage Area1000 sq. ft. area for 1 gallon1000 sq. ft. area for 1 gallon
Pet SafeYes, when dryYes, when dry
PackI GallonI Gallon
ColorWhiteWhite
ManufacturerBayerBayer
Target SpeciesPestPests
Item StyleSuspendOil
Item Weight1.23 pounds1.25 oz
Check PriceCheck Price

Our Top Pick

Suspend SC Insecticide by Bayer is a top pick due to its remarkable effectiveness in swiftly eliminating pests and a residual effect lasting up to three months. Its formulation uses finely ground particles suspended in water, with surfactants and biocides enhancing performance. The presence of deltamethrin micro-crystals allows it to remain on surfaces, ensuring prolonged insect contact.

Suspended SC

Pros

  • Easy to use with a built-in measuring unit
  • Non-staining insecticide formula.
  • It can be used both indoors and outdoors
  • Great for creating a barrier around the outside perimeter of the house
  • Safe to use around children and pets

Cons

  • Extremely toxic to aquatic animals as it can contaminate any nearby water body.
  • Scent can be strong
  • A bit Pricey

The Suspend SC Insecticide, manufactured by Bayer, is a remarkable product that swiftly eliminates troublesome pests and offers an impressive residual effect lasting up to three months following the initial application.

This highly effective suspended concentrate is formulated using finely ground particles of the active ingredient, which are suspended in water. Suspended SC Insecticide does not contain any additional solvents, but it does include surfactants to effectively suspend the solid particles and biocides to prevent microbial growth and prolong its shelf life.

Distinguished by its potent active ingredient, deltamethrin, which exists in the form of pure micro-crystals, Suspend SC Insecticide possesses an enduring residual effect. Instead of being absorbed into porous surfaces, the micro-crystals enable the formula to remain on the surface. As a result, insects continue to come into contact with the treated areas long after the application of the insecticide.

Product Specs

  • Active Ingredients: Deltamethrin
  • Coverage Area: 1000 sq. ft. area for 1 gallon
  • Pet Safe: Yes, when dry
  • Pack: I Gallon
  • Color: White
  • Manufacturer: Bayer
  • Target species: Pest
  • Item Style: Suspend
  • Item Weight: 1.23 pounds

Our take

Across 202 verified reviews (4.59β˜…, 91% rated 4β˜…+), buyers most often praise can be used to get rid of a variety of pests and easy to mix and spray. The recurring complaint: does not work on roaches, and scent can be strong.

What 202 verified buyers say

β˜…β˜…β˜…β˜…β˜… 4.6202 ratings Β· 91% rated 4β˜… or higher
5β˜…
85%
4β˜…
5%
3β˜…
1%
2β˜…
0%
1β˜…
8%

What buyers love

  • Can be used to get rid of a variety of pests
  • Easy to mix and spray
  • Can be used both inside and outside the home

Common complaints

  • Does not work on roaches
  • Scent can be strong
β€œI purchased this item hoping that the reviews were accurate and let me tell you I wish I would have discovered it sooner! I used it in my basement where I always have webs and spiders no matter what I use. After the first application I saw a drastic reduction in webs and no more spiders! I recommend this product to everyone with spiders in their basement.”— 5β˜…, Verified Purchase
β€œNo podΓ­a creer lo que esto hace es sΓΊper para matar todo Wuao Wuao te lo recomiendo”— 5β˜…, Verified Purchase

Based on our analysis of verified customer reviews β€” how we research.

Suspend Polyzone Alternative

Pros

  • Safe for use around food areas and pets once it has dried
  • Long-lasting residual effect
  • Moisture resistant

Cons

  • Very powerful, so it must be used with caution
  • It may require more than one application

Suspend Polyzone represents the upgraded and enhanced edition, surpassing its predecessor. It shares the identical active ingredient found in Suspend SC, yet its formulation includes the addition of a polymer. This polymer infusion empowers Suspend Polyzone to exhibit an impressive outdoor longevity of 90 days while exhibiting superior performance on porous surfaces. In contrast, Suspend SC, in its standard composition, would typically endure approximately 30 days when used outdoors.

Product Specs

  • Active Ingredients: Deltamethrin
  • Coverage Area: 1000 sq. ft. area for 1 gallon
  • Pet Safe: Yes, when dry
  • Pack: I Gallon
  • Color: White
  • Manufacturer: Bayer
  • Target species: Pests
  • Item Style: Oil
  • Item Weight: 1.25 oz

What 220 verified buyers say

β˜…β˜…β˜…β˜…β˜… 4.5220 ratings Β· 87% rated 4β˜… or higher
5β˜…
80%
4β˜…
7%
3β˜…
4%
2β˜…
2%
1β˜…
7%

What buyers love

  • Easy to use
  • Pet safe once dry
  • Great for carpenter bees

Common complaints

  • May require more than one application
  • May not work on all bugs
β€œThis formula has been used at my home for several years now. It is sprayed Spring and Fall and keeps us insect free all year long. Don't waste your money on anything less.”— 5β˜…, Verified Purchase
β€œGot rid of a ton of nat colinies within a week. Sprayed whole yard of gravel lawn. Ants were gone and have not seen them come back.”— 5β˜…, Verified Purchase

Based on our analysis of verified customer reviews β€” how we research.

Remember: no single product clears bed bugs

Even the best product here is one part of a plan. Bed bugs hide in cracks a spray can’t reach, and many are resistant to common pesticides. Combine any treatment with hot-dryer laundering, encasements, steaming, and monitoring β€” see our guide to getting rid of bed bugs.

Frequently Asked Questions

Does Suspend SC kill instantly?

No. It is a contact kill and takes time. The insect will die within 24 hours.

How do I dispose of leftover chemicals?

It should be poured into your house’s foundation or slab. It cannot be poured right into the drains.

How can spraying be used to fully eliminate the problem?

Once every 21 days.

🎯 Free Ants Survival Kit β€” the products that actually work + how to keep them gone

Get it free β†’