After 12 weeks of training with the primary four scents (rose, lemon, eucalyptus, clove), your brain may habituate to the stimuli. This is when introducing Set 2 (menthol, thyme, tangerine, jasmine) becomes critical. Discover how rotating scent categories prevents plateaus in your recovery.
Start Your Recovery Journey
Ready to begin? The Olfactory Training Kit provides everything you need to follow the clinically proven Hummel Protocol. Formulated with 100% pure medical-grade essential oils.