Not everyone was born blessed with pin straight hair, but there are definitely ways of achieving straight locks. Using a flat iron and a hair holding product, such as gel, is one way to keep the hair in a straight state until the next time you wash it.
Rub a nickel-sized dollop of hair gel into your hands and smooth a light layer over a 1-inch section of dry hair. Blow drying your hair beforehand will also help the hair straighten more easily.
Allow the gel to dry slightly, but not completely, on the hair. This should only take around 30 seconds. Pull the flat iron gently and slowly from the top of your head, starting at the root, down to the bottom until straight. Repeat this process, if necessary.
Repeat the processes in step 1 and step 2 until entire head is straight.