Essential oils that have insect repellent properties are naturally effective for long periods of time. A single mosquito repellent bracelet can last for up to a week or hundreds of hours. But there are certain aspects to keep in mind, in order to get the full protective effect of such bracelets.
The anti-mosquito effect lasts as long as the active ingredients keep being diffused, by wearing the bracelet. Some repellent wristbands are made with specific nano-release technologies, that slow down this process. If bracelets are not kept in sealed bags after using them, they will continue to release the active ingredients. Properly storing your bracelet significantly increases its effectiveness.
Also, remember that mosquito bracelets that are not waterproof will have diminished effects if they come in contact with water or sweat. If you keep your bracelet away from humidity, you will be able to reuse it for up to 7 to 10 days.