REF The Strong Hold Duo Looking for a styling spray that delivers maximum control without compromising on shine or flexibility? REF Strong Hold Spray N°533 is a salon favourite, designed for professional stylists who demand reliable, all-day hold. Formulated in Sweden with a fast-drying, humidity-resistant finish, this high-performance hairspray locks styles in place while adding a natural, touchable shine. Infused with moisturising glycerin, it helps maintain hair health and hydration, even under intense styling. Long-lasting hold without stiffness Quick-drying formula with humidity protection Natural shine for a polished, professional finish Vegan, cruelty-free, and infused with REF’s signature Quinoa Protein for strength and resilience Perfect for updos, sleek finishes, or voluminous blow-dries.