No. Using a strong repellent may harm you in one way or another. The best way to repel mosquitoes is by using repellent frequently or going for repellents that can protect for long periods of time, such as those with DEET. It’s important to note that the level of ingredients that repel mosquitoes doesn’t matter. Those with a high percentage of DEET offer similar results to those with a lower concentration. Highly concentrated repellents only last longer on the skin before being applied once again.