Glass bottles for essential oils with DIN18 neck finish, ideal for aromatherapy, cosmetics, and pharmaceutical liquids, compatible with a wide range of closures including dropper caps, pipettes, tamper-evident caps, sprayers, and cream and serum pumps. Available in various sizes (5ml, 10ml, 20ml, 30ml, 50ml, 100ml) and colors (amber, clear, cobalt blue and green), providing reliable and professional packaging for essential oils, serums, herbal extracts, and other liquid formulations.