Lavender (Lavendula angustifolia) flowers, leaves and oil contain linaloyl acetate, linalool, perillyl alcohol, 1,8 cineole (eucalyptol), and at least 100 other known compounds. Lavender has no specific lactation-related uses. Lavender preparations have traditionally been used for anxiety, insomnia and other neurologic conditions, infections, pain and a variety of other conditions, often as aromatherapy. A meta-analysis of 3 randomized, controlled trials concluded that lavender in different formats (aromatherapy, cream, tea) had a positive effect improving sleep quality in postpartum mothers.[1] Lavender is "generally recognized as safe" (GRAS) as a food by the U.S. Food and Drug Administration. In general, lavender is well tolerated, but no data exist on the safety and efficacy of lavender in nursing mothers or infants. Lavender oil has estrogenic and antiandrogenic activity, so topical application around the breast should be avoided.
Dietary supplements do not require extensive pre-marketing approval from the U.S. Food and Drug Administration. Manufacturers are responsible to ensure the safety, but do not need to prove the safety and effectiveness of dietary supplements before they are marketed. Dietary supplements may contain multiple ingredients, and differences are often found between labeled and actual ingredients or their amounts. A manufacturer may contract with an independent organization to verify the quality of a product or its ingredients, but that does not certify the safety or effectiveness of a product. Because of the above issues, clinical testing results on one product may not be applicable to other products. More detailed information