I usually leave mine to their own devices. Most times they shed same day, occasionally they take a day & a bit, rarely, but has happened, I've had to assist after a couple of days. Now if it's been fairly dry (like last week), I'll give them the occasional misting if I can see they're coming up for a shed & that seems to help, but generally I leave them to do it themselves. Just check tail tip, & toes in particular, & remove any retained skin.