The top of Y Cologne from Yves Saint Laurent runs on apple, aldehydes, grapefruit and ginger, a bright, sparkling citrus lift. Lavender, sage and geranium settle the heart into a dry, aromatic core. Tonka bean, cedar, olibanum and patchouli close the foundation warm, resinous and richly woody. Aldehydes in the top note give this a sparkling, almost effervescent quality rarely used in modern masculines, a callback to classic perfumery technique. Y Cologne is a fruity woody Le Parfum, suited to versatile day to evening wear. Yves Saint Laurent built technical craft into this one.