There are many ways to use a straightening serum on your hair. However, one rule we suggest you don’t break is: Don’t apply too much. A few drops really goes a long way. You can also opt for applying it to your hair as you style. To do this, section off your hair, apply your serum, then blow-dry or flat iron and continue this process with the rest of your hair.
Serums can also be applied after styling your hair to add some shine. If you’re using it as an aid for straightening your hair, it’s best to apply before heat styling.