Glass essential oil bottles are small containers that are made of glass and are used to hold and store essential oils. Essential oils are concentrated plant extracts that are used for a variety of purposes, including aromatherapy, natural remedies, and skin care. Glass essential oil bottles are typically designed to be airtight and leak-proof to preserve the quality and potency of the essential oils. They may also come with a dropper or dispensing cap to make it easy to dispense the oil in small amounts. Glass essential oil bottles are preferred by some people because glass is a natural, non-porous material that does not react with essential oils or other chemicals. Glass bottles are also easy to clean and sterilize, making them a popular choice for storing essential oils. However, they may be more fragile and prone to breaking than plastic bottles.