She needs to really moisterize her ends stat!
I give my hair a wake up call with a yummy rose water mist. Rosewater is already quite moisterizing on its own. Lots of times I just don't want to wet all of my hair and this does the trick.
Quite a few us here use a care free curl products as a moisterizer.
I don't use very much of this at all, some use the spray, I use the actual CFC gold activator (its more moisterizing to my hair) the longer my hair gets the more I need to use, so I use a quarter size for each side of my head.
Elasta QP isn't bad, but, can make the hair dry and hard if not used with care. When I use it, its always sparingly. I think last time I used it I used a dab about the size of a quarter for my whole head. I always use that after CFCG.
Then she needs to seal with oil. any oil as long as it works for her. I don't seal with olive oil products because it makes my hair really crunchy. I use jojoba oil with great success (i mix it with all kinds of oils sometimes but its definitly a favorite oil even when its used straight)
Straight Jojoba is quite a light oil with no smell and dosen't go rancid. I can't think of anyone that had any major issues with it. I never use much, just to seal all the way down to the ends before bunning.
I do believe a few ladies here have bunning tutorials. They may be of help for your friend. When I bun I just make sure I have my ends wrapped nicely so they don't get all funky looking (still happens but I don't always take my time either
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If she decides to use the curl activator method for moisture, she's no doubt going to want to clarify at the very least once a month.
-A