If only the best is good enough for your cats, NipNaps offers the highest quality catnip, valerian, and matatabi available today. It's always packaged in airtight glass jars to preserve the scent and prevent the catnip from mingling with the odor of the plastic packaging typically found. Moreover, the jars are easy to seal. The catnip was harvested during the peak of the season and carefully processed fresh to ensure proper drying for ultimate potency. Your pet cat(s) will love it!