Lots of regular, rinse-out conditioners have protein, you don't have to use a superstrong PT like the Aphogee. The product review page is searchable by ingredient. Sally's has several brands that will work and several more natural brands available at Target do too.
2A / F / MD / LP / ?E / BSL --- CG since Dec. 2012

This is what I'm happiest with right now.
Co-wash: CJ DailyFix
Lo-poo: DermOrganic low-poo
RO: SS Caitlin's co
Leave-in: SheScentIt Okra Repair condish
PT: SS Caitlin's + SS PT
Stylers: Volumax Mega Gel, Max Green Styling Gel, DermOrganics Spray Gel
Techniques: Plopping & Pixie Diffusing.
glycerin, honey, oils & butters Protein!