If you have that chemically treated, rubbery elastic band hair that seems to stay wet forever after washing, this is for you. I had severely damaged hair from a full bleach process. I used Aphogee 2-step Protein Treatment, combined with Olaplex/Redken PH bonder/Oplex (Olaplex dupe) once a week for 6 weeks, and it transformed my hair. Not back to virgin hair, but still much better, stronger and shinier. One reviewer commented that she was using this instead of Olaplex. However, Aphogee and bond repair products are not interchangeable: Aphogee adds protein, Olaplex/Redken PH bonder repairs broken disulfide bonds. If your hair is chemically processed, you most likely need both. Some reviewers are disappointed that Aphogee does not make their hair soft and silky. Which is true, it doesn't. It strengthens the hair, so you need something else to add softness afterwards, like bond repair, a hot oil mask or deep repair masks. I never use Aphogee without taking the time for a mask/bond repair treatment afterwards.
Yes, the smell is not pleasant (think wet dog) and yes, you have to blowdry hair till the products hardens, leaving you with stiff hair before you rinse it out. But I find that the smell is quite bearable for the results and I have not had any problem with breakage due to the stiffness before rinsing. Just use common sense and don't bend and break the stiff strands and you'll be fine.
For severely damaged hair, I recommend applying the product per the instructions, then letting it soak in covering your hair with saran wrap or a shower cap for 15 minutes before blowdrying. I can also recommend switching your shampoo to a gentle cleansing conditioner every other time you wash your hair (or more). I use the GOSH cleansing conditioner which I have also reviewed. Some find the GOSH conditioner similar to New Wash from Hair Story, though I haven't tried this myself.