You’ve been deep conditioning all wrong this whole time
“Washing your hair rids [it] of unwanted dirt and oils the from scalp and shaft,” celebrity hairstylist Chuck Amos told Refinery29. “When you deep condition, you restore the moisture and essential oils back to your hair after the cleansing process.”
Generally, those who use a deep conditioner apply it to wet hair, just as you would a regular conditioner. However, Dr. Mona Gohara, M.D., a dermatologist at Yale University, believes this method is incorrect. “You don’t want water and conditioner to compete for space in your hair cuticle,” Gohara told Marie Claire. “That’s why I prefer deep conditioning on dry hair, since it’s a no-compete zone, in terms of hydrators penetrating the cuticle,” she continued.
In other words, when you apply a deep conditioner to wet hair, it’s not as likely to absorb as much product and moisture as it would if your hair was dry. “It’s a really simple change, but it can make a huge difference,” Gohara added. Give it a go and see if you notice a difference.