Add ANY 100 % pure essential oil to the fabric on your pillow to refresh!! The oil will NEVER stain the fabric. All essential oils come with droppers. Some people LOVE 5 drops. Others love 10 drops. Let YOUR nose do the choosing. Look for the 100 % pure on the label. DO NOT buy the fragrance oils because they have chemicals and synthetics in them. Use peppermint to clear your sinuses or lavender to send yourself to sleep! Purchase a 10 ml or 20 ml of essential oil from my website or go to your local natural food store or supermarket to find an oil today!