A surfactant is the "detergent" in the shampoo.
Depending on what she wants to do, she needs to read up on the ingredients to avoid. If she wants to use sulfates, she can use anything. If she wants to follow a CG or modified CG regime, she can't.
3a (Corkicelli), highlighted, fine, low porosity
modified CG, since April '07
CG since 3/11/08
HGs: Anything Sevi; Curly Kinks Satin Roots, Curlycue ReNew and Coil Jam; homemade FSG and okra gel; soap bars; UFD Curly Magic; Botanical Spirits Jellies, CJ Repair Me