Miron Glass Photobiotic Bottle: We use only Miron glass bottles to ensure the freshness and potency of our Hemp Oil. This violet glass bottle, manufactured in the Netherlands, acts as a filter to block the complete spectral range of visible light that can degrade the hemp oil. This helps to protect the sensitive properties of the compounds, like micronutrients, plant-based essential plant nutrients, terpenes, and essential oils. Lab Tested & Certified Every batch is certified, and lab tested for harmful compounds, and purity. A Certificate of Analysis is available for every bottle. Based on Scientific studies Harlequin Focus may be more optimal for individuals with genetic variations in the COMT and AKT1 genes.