Myrtol standardized
Myrtol standardized is an essential oil derived from Pinus spp (pine), Citrus aurantifolia (lime) and Eucalyptus globulus and most commonly found in various herbal-based remedies for sinus problems.
Myrtol standardized is a phytotherapeutic extract (distillate) consisting mainly of three monoterpenes: (+)-α-pinene, d-limonene and 1,8-cineole (as known as Eucalyptol, but not be confused with Eucalyptus oil). For example, in one product (Gelomyrtol forte) the ratio between distillates of Eucalyptol (eucalyptus oil extract), D-limonene (lemon peel extract), and an essential oil mixture of Myrtle and lemon, is (66:32:1:1). This can be somewhat confusing since the first two ingredients are part of the second two.