One brand that is awesome is Aquage. I use the SeaExtend Strengthening Shampoo and Conditioner on my long, dry, over-processed hair. It makes it like silk. Aquage has a whole line of products, depending on your hair type.
I also will use Joico K-Pak Intense Hydrator Treatment for deep conditioning. The human hair protein it contains helps soothe rough cuticles and repair split ends. Joico products are essential for over-processed or bleached hair. I swear they could make a horsetail silky and soft.
Another great product for over-processed hair is Perfect Silk Kertain Enhanced Conditioner. It will make your hair very soft and smooth. My only problem with it, besides the price ($24 for 8.5.oz), is that it doesn’t smell very good. It has a funky odor to it that lingers after you rinse it out.
To really make your hair shiny and gorgeous there is a salon treatment you can get, or you can do this yourself at home. It’s the Redken Chemistry Shot Phase line of products. These are designed for specific hair problems, and you must use the appropriate one. It is supposed to be used with the PHix phase, although at home I only used the Chemistry Shot Phase Color Extend Deep Treatment and it turned out fine.
One thing to do if you want to save money on these products is look for them at discount places, like TJ Maxx or Ross. I got the Perfect Silk at TJ Maxx for $8.99 (regularly $24). Often TJ Maxx has the Joico products in large bottles. The savings would be worth it to drive to a TJ Maxx if one isn’t near you.