Los Angeles, Jun 28 (IANS): TV personality-author-designer Lauren Conrad says airplane passengers should avoid looking in the mirror in the flight because they "show every imperfection".

"I have one tip to add. Spend as little time as possible looking at yourself in the airplane bathroom. That terrible lighting shows every imperfection," Conrad posted in her blog, reports femalefirst.co.uk.

The author recently travelled across the US for her latest book tour and reveals her numerous flights took a toll on her skin.

"Between disrupted sleep patterns and stale airplane air, my skin can go from great to bad in a matter of hours. Throughout my years of book tours and cross-country business trips, I have found that it's nearly impossible to maintain a consistent beauty and skincare routine when travelling," she added.

The 27-year-old also said that drinking plenty of fluids help combat the travel woes.

"Being at a higher altitude will make your skin extra dry and take away that plump, dewy look that defines beautiful healthy skin. Drink plenty of water pre-travel, post-travel and during travel to keep your skin cells hydrated and healthy," she posted.