Human Skin
Skin
The kanji and the word are exactly the same. That means they share meanings as well, though you'll want to know that this refers most specifically to human skin.
はだ
The reading is the same as the one you learned with the kanji.
その温泉に入った後は、お肌がツルツルになるよ。
Your skin will be really smooth after bathing in the hot spring.