I don't find (at least with my hair) any of the Deva products that I have ever used to be big in the "curl enhancing" department, but instead they actually pull out more curls and make them look looser and less defined.
"Curls Tester"
Products in my current regime: Nioxin Scalp Therapy Shampoo, ORS Replenishing Pak, Curls Whipped Cream, Curls Souffle, Curls Spiral Curls Cream, Curls Milkshake, Curls Quenched, BB(Bonner Brothers) Growth Lotion