Of the various types of collage creams, none of them actually contain collagen. A molecule of collagen is too large to be absorbed by the skin. The main ingredient in collagen cream, functional keratin, is a combination of peptide proteins that help your body to build collagen. The remaining ingredients include water, mineral Oil, cetearyl alcohol, glyceryl stearate SE, glycerin, isopropyl myristate, ceteareth-20, propylene glycol blah blah blah..
The ingredients are listed in descending order, from the highest concentration to the lowest, unless there is an ingredient that is considered an active pharmaceutical. Then it, as well as the percentage found in the concentration, will be at the top of the list.
When you read the labels for collagen creams, you will see that the protein is listed far down on the list. In one of the popular brands, it is the 24th ingredient, far behind all of the artificial preservatives and petrochemicals.
One type of cream that contains collagen is referred to as anti-wrinkle cream. Anti-wrinkle creams may also contain retinol, hydroxy acids, or copper peptides, along with the previously listed ingredients, to lessen the appearance of wrinkles. Creams labeled as anti-wrinkle haven't been proven to actually prevent the development of wrinkles, but only to lessen their appearance.
They cannot make the fibers lie in the dermis stronger. They can only make your face look shiny. Basically, buying collagen facial cream is not your best choice for wrinkle reduction, improved firmness or delaying the signs of getting older.