DIPTYQUE VERVEINE (VERBENA) ESSENCE REFILL - Verveine or Verbena is composed of a blend of fragrances all related to the citrus family (lemon, lime, citronella). It is refreshing and energizing. Its clean and green scent is most welcome around the dinner table. Available in candles, room mists, and burning oil essences. Diptyque Burning Oil Essence is a concentrated home fragrance oil for use with our light bulb ring diffuser, to refresh a potpourri, or simmer in our pillar oil burner. Refill flask is 0.5-oz.