Last week Kiehl's Since 1851 hosted a bash at their Santa Monica store to celebrate the skincare company's Earth Day collaboration with Dexter's Michael C. Hall and Big Love's Chloe Sevigny and RadarOnline.com has all the photos.

PHOTOS: Kiehl's Celebrates Earth Day Collaboration With Michael C. Hall & Chloe Sevigny

Both Chloe and Michael designed Limited Edition labels for Kiehl's Rare Earth Deep Pore Cleansing Masque, with 100% of the company's net profits going to benefit the Waterkeeper Alliance, which is a grassroots organization that protects and purifies community waterways.