Free __, "rebel" Molecules Responsible for Aging

This page is the CodyCross answer for the clue below from Time for a check-up, Group 1709, Puzzle 3 (Disposable Face Mask).

Question is: Free __, "rebel" Molecules Responsible for Aging

and the answer is: RADICALS

Word Meaning:

RADICALS — plural of radical

Definitions from Wiktionary.

Free __, "rebel" molecules responsible for aging — CodyCross Answer | CodyCross Solutions