Two marathon runners, Christopher Bergland and Dean Karnazes, ran side-by-side on treadmills inside the storefront while striving to beat the 24-hour treadmill distance record of 153.6 miles.
The event, which kicked off at 8am on 29 April and lasted for 24 hours, taking place in full view of the public, saw Bergland beating the record, running 153.76 miles during the time period.
A third treadmill allowed on-lookers to participate. A representative from Youth-AIDS was on hand to accept donations for the programme.
Bergland, an employee of the store, and Karnazes, a San Francisco-based ultra-marathon runner, approached Kiehl director of PR Shannon Cooney with the idea of a treadathlon six months ago.
Other recent YouthAIDS events have included a ‘VIP shopping night’ at Loehmann’s in Washington DC last month, when a percentage of sales were allocated to the charity.