膚 is a Japanese kanji written with 15 strokes, listed here under the keyword “skin”. It is built from 胃 (stomach) and 虍 (tiger). In Remembering the Kanji by James W. Heisig it is frame 2147.
On KumiJi Glyph Explorer, open the parts search and type “stomach” + “tiger”. 膚 is among the results, together with every other character containing the same shapes.
Open 膚 in the interactive kanji search
to expand every part down to its smallest pieces, add your own names and mnemonic stories,
or search for other characters by their parts.