Yes they do.
amphibians have skin not scales if i am not mistaken
They regularly shed their skin its quite irreagular for them to shed skin though..
Salamanders are anphibians
Yes, as they grow they will molt (shed their skin) a number of times before they pupate. Lar
Corn Snakes? Yes, all snakes shed their old skin.
the shed there skin
Amphibians have a semi-permeable skin. They absorb the moisture they need through their skin, and excrete any excess as urine.
African dwarf frogs do shed their skin regularly as a natural part of their growth process. This shedding helps them maintain healthy skin and allows for proper growth. It is normal for them to shed and should not be a cause for concern.
Shed
No, eels do not shed their skin like snakes. Eels have a slimy mucus layer on their skin that helps protect them from parasites and bacteria, but they do not shed their skin. Instead, their skin grows with their body and they may appear darker or lighter depending on their environment.
Geckos shed old skin because it get old and dry and so they can grow bigger, we shed our skin to it takes a whole year to shed the whole of it but we do shed too :)
As snakes grow the skin doesn't grow with them, so they shed the skin because it no longer "fits" them. By shedding the skin they can get larger, and grow.