(Quantum Health) Why risk using chemical products when an effective natural repellent is equal to the job? Buzz Away Extreme by Quantum is the most powerful natural mosquito repellent available. This DEET-free formula combines essential plant oils with soybean and geranium oil for the longest lasting natural protection available. Works for up to 8 hours against mosquitoes, up to 2.5 hours on ticks, and also repels fleas, gnats and flies. Non-greasy, pleasant aroma and great for families. Fishermen - did you know DEET repellents repel fish too? It's true - but not Buzz Away.