Substantele active ale lavandei au proprietati antiseptice, antidepresive, antispastice, carminative, cicatrizante, digestive, tonifiante.
Siropul de lavanda este util in caz de: hipertensiune, bronsite, astm bronsic, pneumonii de natura virala, raceala, gripa, guturai, hepatite, colecistite acute sau cornice, cistite, pielite, metroragii, insomnii, anxietate, nervozitate, depresie, dermatite, dermatoze, infectii stafilococice si streptococice, afectiuni alergice, cefalee, migrene, distonii neuro-vegetative, migdalite, rinite, faringite, laringite, boli de natura inflamatorie de tip reumatic, afte, gingivite, anemie sau ca vermifug.