I'm not Valencia, but I do have experience with the remy hair she uses. I purchased the Remy Hair Today wavy hair in the Winter. The wavy hair is natural, so it maintains its wave even when brushed. However, the wave can be enhanced by using products designed for curly hair like Pantene's Curl Defining line. Also, the hair can be dyed whatever color(s) you and/or your stylist choose. Finally, even though the remy hair comes in straight, wavy, and curly textures, Valencia is able to transform the hair into almost any texture desired. If you haven't already, be sure to check out her Custom Gallery.
Take care,
Renay