Minimum Shelf Life in Months : 24 Minimum Usable Period in Months : 3 Sustainable : Regular Total Shelf Life in Months : 36 Type : Serum Units Per Bundle : 1 What it is Shake and Spray Hair Serum Features This spray has Vitamin B fortified water that keeps your hair moisturized & cuts away the frizz while its serum glossers boost shine and give your hair an express salon finish. Boost shine Perfect for no shampoo days Cuts frizz on the go Instant manageability 50 ml each How to use: Split your hair into 2 halves. Shake the product well until its all pink. Spray away on dry hair. 3-4 sprays on either side should do for shoulder length hair. Use more for longer hair! Once done, run your fingers through your hair.