Shampoo bottle female/female adapter

Transfer the content of your old shampoo bottle into the new one without wasting a teaspoon. Take a full bottle, use it a bit so there is space left. Connect the two bottle with the empty one up and let the gravity do the rest. Just join the 2 bottle together and do not over tighten or it will break. Tested with exact and Très aimé shampoo in Canada.