Thank you for viewing. This size is 300ml. I purchased this at a salon last week. It has been used only once. The remaining amount was 361g according to the scale. Although the exact content volume is unknown because the weight of the container is also included, it seems that it has hardly decreased. I placed it near water only when using it, and moved it immediately after use, so there should be no changes in its properties. I store it under moderate temperatures, but please refrain from purchasing if you are looking for perfection, as it is stored by an amateur and is a used item. (⁎ᴗ͈ˬᴗ͈⁎) I am not considering lowering the price. ￣￣￣￣￣￣￣￣￣￣￣￣￣￣￣￣￣￣￣￣￣￣ Type: Shampoo Type: Foam Ingredients: Amino acid Features: Salon exclusive product