How should I use a hair serum?

Generally hair serum is great to use in three different ways:

1. For extremely damaged hair you can apply this on dry, dirty hair before you shampoo and condition.
2. On towel-dried hair prior to using direct heat or air drying your hair to tame frizz and fly-aways.
3. Apply this after your style is complete on dry hair to mend split ends, add shine and add a layer of environmental and UV protection.