I saw Aloe Vera Gel at GNC. Is that what should be used to combine with essential oil? Thanks a lot!

 Thanks a lot, Devils_Dust. That's very helpful. Also, any idea what is the correct English name for 芦荟胶 - "Aloe Vera Gel" or "Aloe Gel"?

I see ... thanks again.
 

That's a good idea. Did you mix the whole bottle or just a little bit everytime when you use it?

Enjoy!

I am so impressed by everyone's willingness to help. Thanks, 清水微澜,  summer617 and all other friends. Now it's time for me to try and report back ... will keep you posted.

 I only tried GNC Aloe Vera Gel so far. It's fine ... smells like XUEHUAGAO ... I would rather it has no smell at all.