Hydrolysed protein is a curl booster than can be less drying than table salt, I can also use epsom salts some days in Rockin Ringlets, the times it was super drying was actually when I used a hard hold gel over. Used alone I had nice results: soft hair and waves/ curls that held up well.
2a-2c, medium texture, porous/ colour treated. Three years CG, growing out mechanical and chemical damage = breakage and very high porosity. Past armpit length heading for waist.
Treatments: Komaza protein, Komaza Matani, coconut oil with sugar syrup. Hairveda Sitrinillah
Leave in: Fructis Sleek & Shine (old), Gliss ultimate volume
Styler: Umberto Giannini jelly, Boots curl creme, Rockin RInglets
Experimenting with: Mega-Tek, Curl Harmony reviver, Elvive Full Restore 5.