Cool Water was an absolute revolution in perfumery; the perfumer used raw materials like Calone and Dihydromyrcenol normally used to give freshness at tiny dosages in airfresheners and fabric conditioners but used them at up to 4%, which is what gives the perfume that amazing aquatic freshness. Happily they were never priced as expensive ingredients for eau de toilette so Cool Water is cheap to manufacture and very soon the supermarkets were full of knock-offs in shower gel, shaving products and so on.
Angel (and A-Men) contains 40% patchouli oil so it’s expensive to make. It also has a crystalline material called veltol, which gives a sugary candy-floss note but turns bright red in contact with iron.