Ingredients by brand
What's in Repel repellents?
The 8 Repel products we've scored use 5 different active ingredients: DEET, Oil of Lemon Eucalyptus, Tetramethrin, and Permethrin, plus 1 more.
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 Repel products
DEET 15%–98.11%
In 5 of 8 products
The most widely used synthetic active ingredient in insect repellents. Effective against mosquitoes, ticks, and many biting flies.
In 1 of 8 products
Botanical repellent derived from Corymbia citriodora. PMD (p-menthane-3,8-diol) is the primary active component in many products.
Tetramethrin 0.1%
In 1 of 8 products
EPA Substance Registry Services (SRS) listed active ingredient for pesticide products.
Permethrin 0.25%
In 1 of 8 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…
Picaridin 15%
In 1 of 8 products
Synthetic repellent modeled after piperidine compounds in black pepper. Odorless and non-greasy compared to DEET.
Every Repelproduct we've scored
Open a product for its full ingredient list, protection time and review.
| Product | Active ingredient | Mosquito protection | Our score |
|---|---|---|---|
| Insect Repellent Scented Family Formula 15% DEETSpray | DEET 15.0% | 3–4 h | 90 |
| Insect Repellent Sportsmen Formula 25% DEETSpray | DEET 25% | 5–6 h | 92 |
| Insect Repellent Sportsmen Max Formula 40% DEETSpray | DEET 40% | 6–7 h | 94 |
| Plant-Based Lemon Eucalyptus Insect RepellentSpray | Oil of Lemon Eucalyptus 30% | 4–6 h | 85 |
| Repel 100 Insect RepellentSpray | DEET 98.11% | 6–8 h | 94 |
| Repel Insect Repellent Mosquito Wipes 30% DEETWipe | DEET 30% | 5–6 h | 92 |
| Repel Propane Insect Fogger (Model 190397)Fogger | Tetramethrin 0.10%, Permethrin 0.25% | — | 54 |
| Tick Defense 15% PicaridinSpray | Picaridin 15% | 5–7 h | 93 |