When I diffuse, I need a REALLY strong gel to keep my hair from frizzing during the process. Right now I am using HE set me up and a bit of Biosilk rock hard gellee. I only diffuse to about 50% dry, let it cool and "set" about 20 minutes while I have some coffee and breakfast, and then dry it most of the rest of the way so I can scrunch out the crunch.

Maybe you need a stronger gel?

Otherwise I can get away with lighter gels if I air dry, but they don't hold up to the diffusing process and I get frizz. But air drying takes ~5 hours for me, which I don't like.
scientist, cat owner, hobby photographer
2b-c, medium porosity, medium texture, protein-indifferent
former straightening junkie; CG since August 2011
conditioners: V05 Kiwi Lime, Garnier pure clean, Renpure Keratin
products: FSG, LALSG, AIF, BRHG, Tresemme hair spray
styling tools: microfiber towel for plopping, diffuser