D3 DEVELOPMENT, INC. (DBA: DERMAHARMONY)
P.O. Box 756
Portland, Maine 04101 - USA
Tel: (800) 827-3730
Mon - Fri, 10am - 5pm (Eastern USA)
Off-hour calls: Answered when available
You can also email directly to customerservice@dermaharmony.com.
Returns should ship to DermaHarmony, 7 Riverside Drive, Falmouth, ME 04105.