Sea Magik Magnesium and Argan Oil Shampoo 300ml Promoting healthy hair growth with natural antioxidants and minerals. Spa Magik magnesium and argan oil shampoo leaves hair shiny and nourished with a blend of magnesium and argan oil; rich in antioxidants, omega 3 fatty acids and vitamins A, C and E. Vegan formula and sustainable packaging made from bio-based sugar cane plastic.