If your hair is damaged it means the cuticle layer is uneven. In this case you need a deep conditioner to penetrate through to the damaged areas for repair and maintenance. This repair and maintenance is not permanent, it only last a few days, that is why you need to deep condition at least weekly.
Overall, a regular conditioner:
- Smoothes down the cuticle layer of hair so that it lies flat
- Normalizes hair’s pH after a shampoo
- Provides a layer of protection against “trauma” from combing and styling until the next condition
And a deep conditioner also:
- Fixes areas of damage along the cuticle
What about if your hair is healthy? Is a deep conditioner still needed?
If your hair is healthy the cuticles are lie flat and don’t have holes and gaps of damage. This means that a deep conditioner will mostly act on the surface; however, as damage can’t be observed by the naked eye, any small areas of damage will be fixed.
With healthy hair a weekly deep condition is not vital but it will definitely help to maintain the healthy condition of your hair.
Deep conditioning healthy hair is similar to a person with a fabulous diet also taking a vitamin pill – it isn’t necessary but it ensures they are definitely getting everything their body needs.