A more concentrated oil to prevent tick bites. I spray on hands and apply to exposed skin. Look for 12 hour spray. Suitable for adults to repel ticks. I use in concert with a 30% deet spray as it is effective against blackflies, deerflies, horse flies and mosquitoes. Check labels. May not be suitable for babies, children and pregnant or nursing moms. Check with your doctor for contraindications. Very effective in forested areas and long grass.