What is S-Methoprene and what does it do in this shampoo?
Adams Flea & Tick (Etofenprox, (S)-Methoprene, and Piperonyl Butoxide)
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Open Nov 18, 2025 - 12:55 PM
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Answer
Nov 18, 2025 - 12:55 PM
S-Methoprene is an insect growth regulator (IGR) that prevents flea eggs and larvae from developing into adult fleas. By interrupting the flea life cycle, S-Methoprene helps prevent re-infestation, making long-term control easier for pet owners.
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