The importance of these ingredients:

Cucumbers
Ingredients in cucumber regenerates the skin in a natural way. Antioxidants, such as vitamins C and K destroy free radicals which actually cause wrinkles and loose the skin. One of the most important ingredients in cucumbers that fights wrinkles and supports connective tissue growth is silica.
Egg White
Eggs possess a lot of benefits, one of which is their ability to tighten skin.
Preparation:

Cut the cucumber in 2 halves and then peel the skin off one half. Slice the peeled cucumber half into small pieces, no bigger than 1 inch each.
Put these pieces in a blender and blend for 2 minutes on medium speed. The mixture should become a puree.
Next step, put a strainer over a bowl and apply the pulp onto the strainer. Let the juice drain into the bowl and smash it by using a spoon to extract the rest of the juice.
After that, add 1 egg white and mix together.
At the end, apply the resulted mixture to the body part that needs tightening. Leave it for 15 minutes and then wash offthe place with cool water.
Use the mask once or twice weekly for optimal results.