Having a few too many at the office Christmas party can leave you with a throbbing headache, but even after the hangover has cleared up you skin will be still taking the hit.
In fact, depending on your age, it can take your skin up to four weeks to recover from a night of binge drinking over the festive season, leaving telltale signs such as dark circles and accentuated lines and wrinkles caused by dehydration, reports the Daily Mail.
Experts from the CACI International, who create anti-ageing facial treatments, have analysed studies on the effect of increased alcohol consumption on the skin, as well as collecting anecdotal evidence from their own therapists across the UK, showing that the toxicity left over after a heavy night can last up to four weeks after the party for women over 40.
Younger women tend to bounce back faster, but the ageing affects for women in their 20s and 30s can still last up to a fortnight.
Men's bodies are better able to synthesise alcohol, allowing their skin to bounce back quicker, although it can still take their skin up to a week to recover from a big night out.