Generally speaking, the darker, the more liquid, and the stinkier a protein product is, the stronger it is.
Light....many of these are more medium strength if you add heat
Aphogee 2 minute reconstructor
Redken Extreme conditioner
Joico Kpak daily conditioner
Paul Mitchell hair repair
Duo Tex- there is a thread about this floating around, Supergirl gave a tip on how to use it
Aubrey Organics GPB
Smooth and shine silk fusion reconstructor
Mane and Tail
Mega-Tek
Elasta qp breakage control serum
Nexxus Keraphix
Palmers Coconut conditioner packet
ORS Replehishing conditioner- very mild, good balance of moisture and protein
ORS Mayo- if you add the egg under their intensive directions, it will make it more heavy
Proclaim Tea Tree reconstructor
TIGI dumb blonde conditioner
Motions CPR( in the bottle)
Motions CPR (in the jar)- a little stronger than the above, to me atleast
Heavy
Dudleys DRC
Nexxus Emergencee- used the old way
Joico Reconstructor
Aphogee Treatment for damaged hair
Loreal Hair Repair kit- comes in a blue box from sallys