A blend of firs from around the world infused with resins & absolutes for a more concentrated scent than your standard essential oil. Undiluted, pure & all natural aromatherapy essential oil blend unique to Adirondack Aromatherapy. in glass tinted bottles with dropper tops. Biodiverse Fir Essential Oil Blend. Douglas, Balsam, White & Russian Absolutes. 5 Ml