Pre-shampoo treatments and hot oil treatments are pretty much the same. Hot oil treatments came out first, many decades ago, and involve heating the oil in a double burner before applying it to dry hair.
You can heat a pre- poo oil treatment, but the modern way is to drench your hair in oil then use steam to help it penetrate.
This is a more relaxing treatment with a bonus: you’re less likely to burn yourself with that hot oil.
Many thanks to Sophie O’Kelley at Vegamour for including my insight about hot oil treatments in her article on the same. Pre-shampoo treatments are optional additions for type 2 hair routines. But ohhhh they are indispensable for type 4 hair.
Why is that? Check out my natural 4C hair care guide to find out.