I have bought a lot of my herbal products from Starwest Botanicals for the last several years. True herbalists will tell you that not all companies are equal. Starwest has an exemplary reputation of you need to buy herbs for medicinal purposes. As far as lavender goes, these are dryer bags and clearly won't be interested. Still, the quality is fantastic. The scent lasts and is known to relax people. Plus this is natural -YAY (I love this company!)! I actually just hang then I'm my closet to keep things smelling special, and to waft into the bedroom to help aid sleep.