Can you use aloe vera by itself on hair?

I first recommend people do a 24-hour patch test. To do this, first clean either the inside of your elbow or behind your ear with warm, soapy water. Then pat it dry and apply aloe vera. Next, wait 24 hours to see if you have an allergic reaction. Typically people will see a reaction within two hours but the 24-hour window is a smart approach. If you have an allergic reaction, don't use it. If you can use it, I recommend first doing a good cleansing and then apply the aloe vera on the scalp. Do a great massage to get the blood pumping. Then let it process for 10 or 15 minutes. Finally, thoroughly rinse it out of the hair, apply your favorite conditioner, rinse and proceed with your regular styling routine.