New York Scent offers you Pure Fragrance Oil for manufacturing use in applications such as candles, incense, and soap. These are not for direct skin use as they're very concentrated. They need to be used in a product or mixed with a carrier oil first. All of the scents listed have recommended usage rates included in the details. All scents are bottled in a recyclable HDPE or PET plastic bottle. Most fragrances are measured by weight, not volume, so fill levels will vary.