Our reed base is an organic compound that is biodegradable and not harmful to the environment. It's an excellent fragrance carrier for long lasting scents with low Volatile Organic Compounds emissions to preserve a clean indoor air quality. We use the highest quality fragrance oils that are a complex mixture of fragrance materials. Some fragrance oils due to the nature of their raw materials may have discolouration, which is normal. Our fragrances are PREMIUM GRADE; not the diluted, cheap grades sold by many companies. We use the best quality reed diffuser oil base which provides a superior scent throw for the diffuser with maximum scent dispersion. Directions on how to use a reed diffuser and the refill > Remove the wood top or similar from your reed diffuser jar. > Carefully remove the cap from the refill bottle and pour the desired amount into your jar. > Place the wood top, etc. back onto your jar. > Put the reed sticks into the jar. > Let the sticks absorb the oil, then flip them so that the saturated ends face upwards and the dry ends are submerged in the oil in the bottle. > Use caution when flipping the sticks. It is advised to use a paper towel for handling. > Before positioning your diffuser to its place, wipe the bottom of the bottle clean to avoid any damage to the surface.