Ingredients by brand
What's in 3M repellents?
All 3 3M products we've scored rely on DEET (19%–34.34%) as the active ingredient.
By the Notch Wellness team · Updated June 28, 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 3M products
DEET 19%–34.34%
In 3 of 3 products
The most widely used synthetic active ingredient in insect repellents. Effective against mosquitoes, ticks, and many biting flies.
Every 3Mproduct we've scored
Open a product for its full ingredient list, protection time and review.
| Product | Active ingredient | Mosquito protection | Our score |
|---|---|---|---|
| 3M Ultrathon Insect RepellentLotion | DEET 34.34% | 6–7 h | 94 |
| 3M Ultrathon Insect Repellent 8Spray | DEET 25% | 5–6 h | 92 |
| 3M Ultrathon Insect Repellent PumpSpray | DEET 19% | 3–4 h | 90 |