You should try a warmed Olive Oil hair treatment :) I'm making it a regular thing, it made my hair awesomely soft and repaired it nicely.
Just take a reasonable amount of Olive Oil* and warm it in the microwave for about 30-45 seconds.. Then lean over a sink and apply it to dry hair focusing on the ends. If your hair is wet, it will just bead up and not soak in as well
Avoid the roots as much as possible, because even with good shampooing you risk making the roots look oily, since they're almost always the least damaged and require the least amount of restoration..
Put your hair in a bun and leave on for 1 to 2 hours, then shampoo and condition as you normally would.
Do NOT Apply In the Shower
I just really have to stress not to apply the oil in the shower, or to let the oil drip into the tub or on the floor because it will make it dangerously slippery.. So when you apply, apply it over a sink.
*My hair is thick and to my shoulder blades.. It took me almost 1/4th a cup of olive oil to saturate my hair.
1/4 cup olive oil
1 tblspn honey
1 tblspn vinegar (white or apple cider)
Heat in microwave safe bowl for 30-60 seconds. Pour over the mid-lower lengths of the hair and brush through. Avoid the roots as this will make the hair look oily. Put hair up in a bun and wrap in plastic wrap or shower cap. If possible wrap your head with a towel. Allow it to sit for at least 15 minutes, but can be left on the hair for as long as you'd like to leave it. Before shampooing use your blow dryer to heat the hair for a few minutes. Shampoo, condition, and style as usual.
This is a perfect post bleaching/highlighting moisture and repair treatment. The vinegar restores your hair to a neutral pH, the honey is a natural humectant that helps seal the protein and moisture form the olive oil into the hair. The olive oil helps reduce the appearance of split ends and protect it from heat damage. Heating the oil before application, covering the hair while the treatment sets, as well as using the blow dryer on the hair all aids in opening the hair shaft to accept the moisture from the oil and honey and allows the vinegar to neutralize any oxidizing agents that may still be on the hair from color treating it. Repeat once a month, or after every color treatment to keep hair healthy and strong.