Anua Heartleaf 77 Soothing Toner, pH 5.5 Trouble Care, Calming Skin, Refreshing, Hydrating, Purifying, Cruelty Free, Vegan (250ml)

What are the ingredients?

I have always been confused about how toners work, do you wash it off of leave it on your skin during the day/night?

bottle labels seem to be different. Some ingredients listed on front and are 8.5 oz as opposed to 8.45. Has the manufacturer changed packaging? Or is

why is the packing different compared to the one from Olive Young? ( the amazon one has no ingredients listen on the front of the bottle)