"Bangs" (as in hair) in French is "frange". This is a noun, and it doesn't directly translate into an adjective.
"Bags" (as in under-eye bags) in French is "poches". While this is also a noun, it can sometimes be used in an adjective form:
* "Des yeux cernés" - Literally "circled eyes," which implies dark circles and under-eye bags.
* "Des yeux gonflés" - Literally "swollen eyes," which also implies the presence of under-eye bags.
So, in essence, they are similar in that they both relate to physical features. However, they have different French terms and are used slightly differently.