What are the ingredients in the L'oreal? I don't know what silicones were in the Organix oil, but if they were any of the non-water soluble silicones (dimethicone, amodimethicone, etc.), and if your L'oreal low-poo doesn't include a surfactant (cocomidapropyl betaine, or similar), then you won't be able to thoroughly cleanse your hair of the silicones. You would have to cleanse with a sulfate-rich (Sodium Laurel or Sodium Laureth sulfates), silicone-free shampoo. And then, you could continue cowashing and using your low-poo because the buildup (silicones) would be gone.