"Shed Skin Papa" & "Alien Monster" (Age Regression and Alien Transformations)

Our thanks to Ian Ricky for providing both of these clips from Chinese-made feature films.

Shed Skin Papa (2016, 脱皮爸爸) involves a man who literally sheds his skin to become his younger self:

The creatively titled Alien Monster (2020, 异星怪兽之荒野求生) involves...well, you can guess! It also involves a partial alien transformation. Alas, the final stage of the metamorphosis happens offscreen: