I have gone through multiple of these. I use this primarily on my body right after a shower. Works great for shaving too.

i bought it for my mother and she is very satisfied

This is thus far the only face oil I've tried that did not break me out. However, it is really surface-heavy so it stays on forever on the skin unless you accidentally rub it off. I live in Sweden, and now when the weather's been snowing and below -15C, it's been great combining this with my face cream underneath make-up or just going out in the cold. I cannot use it during summer though, it's too greasy and runs down in my eyes.

I have over treated my face and It has become so dry. I mix this with my moisturiser at night and it works very well. It treats lips wonderfully 

This product doesn't break me out which is great, but I don't think anyone needs to use 100% squalane. I do love it a lot in the other products of Biossance