Trying new Vitamin C serums to find my favourite one! Today I used Bondi Sands Vitamin C serum. I’ll be completely honest, I don’t particularly like the bottle and the smell is a bit “chemical-ly”, so I don’t think this one will be my favourite. It lasts for 9 months after opening… but of course we will have to test that out in a few months, as our LRP Vitamin C serum oxidised earlier than the labeled expiry date.