Birchbox Coupons: 20% Off Fragrance Edit! Last updated by Hello Subscription on February 23, 2018. Subscription Box Coupons & Deals / Birchbox Coupons Hello Subscription may earn compensation via links in this post. Read the full disclosure Save for LaterGo to commentsNotification New Birchbox Offer: use coupon code SCENT20 to save 20% off products from the Birchbox Fragrance Edit Shop through 3/1! Don’t forget to Add a Mystery Sample Pack before you check out!