I use it over a leave in and under a gel if I want lots of hold, but if I am going for a more voluminous look, I use curl keeper over a leave in. It keeps frizz away, but does not weigh my hair down.

P.S. the smell is interesting, but once it is in your hair it goes away.
3a/3b, Fine Hair, Low porosity, Medium Density
Poo- CHS Treatment Shampoo
Low-poo- Devacurl Low Poo
RO- Devacurl One Condition
Leave-In- KCKT/Curl Junkie Smoothing Lotion