After your face is smeared with cream, if you don't wash it thoroughly, of course, your face will feel slippery. That's because the cream fills your pores and unsmooth places, so it just feels good. However, cream never has the effect of beautifying the skin, and the nutritional skin of cream is completely impossible to absorb (due to the molecular size). If you don't clean it for a long time and cause capillary blockage, you will regret it.
The real beauty factor of filling subcutaneous tissue is collagen, which can make skin full, so it is naturally smooth and not prone to wrinkles. Usually, eat some collagen-rich foods such as donkey-hide gelatin, pig's hands and chicken's feet in moderation every week. Persistence will definitely have an effect.
Personally, I think it is much more useful than any skin care products, and it is not a chemical. My mother is 50 years old. Although she is a little fatter than a slim person, her skin is white and smooth. This is my personal experience.