Take aromatherapy to new levels with Rento Sauna Scents! Each bottle contains 13 ounces (384 ml). Add 2 to 4 cap fulls to your sauna's water bucket, then throw on your hot sauna stones for an invigorating blast! Available in several different aromas. You can even mix them together for a "Signature Scent"! Woodsy and leathery, Rento's Midsummer Birch aromatherapy fragrance is like taking a walk through the woods while the trees are blooming!