As the old adage goes: Diamonds are a girl’s best friend, well, AlfaParf Milano has taken that love to a new level with its Semi Di Lino Diamond Illuminating hair treatment collection. This gorgeous collection gives hair an incredible, long-lasting diamond shine as well as 24 hour illuminating power from root to tip.

Other benefits include providing hair with an anti-pollution shield and a multivitamin complex that gives follicles an antioxidant energy boost. This wonderful line revitalizes and illuminates hair so it can shine like priceless diamonds. AlfaParf Milano Semi Di Lino Diamond Illuminating Gift Set, $40 –