Editing Tocopherol (section)

===Mechanism of action===
Tocopherols are radical scavengers, delivering an H atom to quench free radicals. At 323&nbsp;kJ/mol, the O–H bond in tocopherols is approximately 10% weaker than in most other [[phenol]]s.<ref>{{RubberBible87th}}</ref> This weak bond allows the vitamin to donate a hydrogen atom to the [[peroxyl radical]] and other [[Radical (chemistry)|free radicals]], minimizing their damaging effect. The thus generated tocopheryl radical is relatively unreactive, but reverts to tocopherol by a [[redox]] reaction with a hydrogen donor such as [[vitamin C]].<ref>{{cite journal | vauthors = Traber MG, Stevens JF | title = Vitamins C and E: beneficial effects from a mechanistic perspective | journal = Free Radical Biology & Medicine | volume = 51 | issue = 5 | pages = 1000–1013 | date = September 2011 | pmid = 21664268 | pmc = 3156342 | doi = 10.1016/j.freeradbiomed.2011.05.017 }}</ref> As they are fat-soluble, tocopherols are incorporated into cell membranes, which are thus protected from oxidative damage.