What are your hair properties and routine at present? Are you full or modified Curly Girl?
My hair became curlier when I quit sulphate surfactants and silicones, recently accidentally used a silicone again and got stringy lank hair. DIY deep treatments with coconut oil and sugar syrup (many use honey) make my hair curl up tighter.
Not all the products mentioned here are expensive: Suave is cheap AFAIK
. Plenty of people here do Curly Girl on a drugstore budget.
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.