hehe....I know, we will have more glowing faces.
You need to only add a pinch of turmeric and it will be fine, will not bother you with that color on the skin.
Yes the onion smell does stay a bit but will not bother much in comparison with the quality of hair you will get. When I go for a hair cut my Saloon female always tells me there is an onion smell from your hair, I tell her do not bother just cut...hehe