Wondercide Natural & Organic Flea & Tick Spot Drops Replacement Kit for Dogs, Cedar Scent Cedar scented Flea & Tick Control for Pets + Home replaces flea & tick drops & pills. Safely kills & repels fleas & ticks without harsh chemicals. Control fleas, ticks, mosquitoes & 100s of other pests. Kills pest life cycle. Cedar oil works by blocking octopamine, which is necessary to regulate heart rate, movement, and metabolism in bad bugs like fleas and ticks. Safe for dogs & cats of all ages. Safe for the environment and around children. No artificial colors or fragrances. Therapeutic-grade essential oils. Made in the USA!