Blind Barber 40 Proof Sea Salt Spray in Beauty: NA The 40 Proof Sea Salt Spray is a protein-rich spray that gives your hair an extra boost of volume and texture. The formula is infused with sea salt and hops to mimic those just-off-the-beach waves with the perfect body. For best results, spray evenly, starting at the roots on damp or towel-dried hair.. Vegan and cruelty-free. Light to medium hold. Textured finish with a light Tonka Bean fragrance. 5 oz. For best results, spray evenly, starting at the roots on damp or towel-dried hair.. BRBR-MU2. 858081005076. About the designer: