It is completely understandable that you are surprised that the product you received is not fully filled. There is actually a very good reason for this:
When the product is filled, a small amount of air is deliberately left in the packaging. This is not a sign that product is missing, but a necessary measure to protect product quality and integrity. The air acts as a buffer, helping to prevent the product from being damaged or leaking during transport, as well as ensuring it stays fresh and effective for longer by minimizing exposure to oxygen, which can speed up the breakdown of active ingredients. We assure you that there is the specified amount in the bucket, even though it may appear as if something is 'missing'.