Antioxidant capacity measured with FRAP, ABTS and DPPH assays was linearly correlated to total phenols measured with the Folin–Ciocalteau’s assay, ranging from a minimum value of rTP/ABTS+ = 0.8913 for Cannnau wine to a maximum of rTP/ABTS+ = 0.9529 for strawberry-tree honey (data not shown). Cannonau wines and myrtle liqueurs showed comparable values of total phenols (1978 ± 279 and 1741 ± 150 mg GAE/L, respectively), and strawberry-tree honey contained almost half the quantity (922 ± 38 mg GAE/kg). HPLC-DAD analysis was used to investigate the phenolic fraction and the LC–MS/MS analysis was used to confirm peaks’ attribution ( Table 2). Acquired chromatograms at 280 nm were used to quantify hydroxybenzoic acids, hydroxycinnamic acids, flavanols and t-resveratrol. Chromatograms at 360 and 520 nm were used to quantify flavonols and anthocyanins, respectively.