I really love this for my nails. I find the other nail strengtheners you tend to get at western shops from brands like Sally Hanson tend to be like topcoats that don't really do much to nourish the nail, they just create a barrier. Also, those types say you should remove it after 4 days and restart when using nail polish remover is the thing that started my nails becoming weak and splitting into layers, so they seemed stupid and useless.

If you're looking for a true SERUM, not a protector then this is great.

This is like a thin oil. It is not heavy or thick and does not take long to sink in. I tend to do this at night before bed.

The instruction are a bit elusive but I searched online and it say to shake the 2 layers well. It tends to separate as I'm onto my 3rd or so nail so I shake it a few times whilst applying to all my nails. Also it mentioned you can massage it into your nails if you want but I tend not to.

Definitely love this