Have you tried pre-treatment with a DC? Sometimes when my hair wants to "frizz out", I'll do a pre-treatment first. Then that's followed by a DC or PT, depending how the hair feels after the low-poo or shampoo. Before the styling product is put on, I'll use a leave-in.

Also, after the shampoo or when you rinse out the DC/PT, try using a ACV rinse to close the cuticles.

You could also try the Rum and Egg Treatment.

HTH
Mod CG-Naturally Highly Porous and Dry
This list is not exhaustive...

Using the O.L.C. Method:

O-Mongongo,Tamanu,Pure Vitamin E oil
L-
Curly Q's la la Meringue Curl Moisture Detangler
C-MJ Multicultural Curls, various

Cowash: various
DT: Bed Head TIGI Self-Absorbed Conditioner, various
PT: Gold Medal Herbal Tame pkg. mixed with a deep conditioner
Sealer:
Pure Vitamin E oil


*experimenting and loving it!