Do you use ORS pack as a light protein treatment? Or a mositurizing treatment, that happens to have protein in it?
I use ORS pack as a moisturizing deep conditioner every week. It makes my hair rediculously soft and helps with detangling. Collagen helps with elasticity (which is what you need right now since you're lacking it).
ORS IS a moisturizing deep conditioner. Just because there is protien in a deep conditioner, it doesn't mean it's a protein treatment of any sort. Mizani Moisturefuse has wheat protien (it's known to help with moisture) and it's a moisturizing deep conditioner. I personally recommend ORS Pack, Mizani Moisture fuse, Redken All Soft Heavy Cream or Joico Moisture Recovery Treatment balm. The deep conditioners I mentioned state on the package that they deep condition AND they all have protein in them. HOWEVER, the purpose of the protein is to help with getting moisture into the hair. All proteins ARE NOT the same.
I highly recommend you check out the following thread. It has info about different proteins(and their purpose) and will help you in deciding selecting the appropriate treatments/conditioners for your hair. Good luck!
http://www.longhaircareforum.com/showthread.php?t=114629