Ingredients by brand
What's in Black Flag repellents?
The 2 Black Flag products we've scored use 3 different active ingredients: Tetramethrin, Permethrin, and Phenothrin.
By the Notch Wellness team · Updated July 24, 2026 · Reviewed against our scoring methodology
We make Notch, so we're not a neutral third party. Ingredients and concentrations come from each product's label; scores come from our published methodology.
Active ingredients in Black Flag products
Tetramethrin 0.1%
In 1 of 2 products
EPA Substance Registry Services (SRS) listed active ingredient for pesticide products.
Permethrin 0.25%
In 1 of 2 products
A synthetic pyrethroid for treating clothing and gear, not skin. Bonded to fabric it kills ticks and mosquitoes on contact for weeks at a time, which makes treated clothing plus a skin repellent the strongest tick…
Phenothrin 0.15%
In 1 of 2 products
EPA Substance Registry Services (SRS) listed active ingredient for pesticide products.
Every Black Flagproduct we've scored
Open a product for its full ingredient list, protection time and review.
| Product | Active ingredient | Mosquito protection | Our score |
|---|---|---|---|
| Black Flag Electric Insect Fogger (Model 190107)Fogger | Tetramethrin 0.10%, Permethrin 0.25% | — | 54 |
| Black Flag Propane Insect FoggerFogger | Phenothrin 0.15% | — | 54 |