Amazon cuts an extra $4 off select Vidal Sassoon Salonist Hair Color Kits via this clippable coupon. Plus, most items receive an extra 30% off during checkout. (It's applied automatically.) Even better, you'll get an additional 5% off and bag free shipping when you order via Subscribe & Save. That's tied with our mention from two weeks ago as the best discount we've seen for any range of Vidal Sassoon hair products, putting most items around $10 under what you'd pay in local stores.
Be sure to cancel Subscribe & Save once your order ships or you'll be billed for subsequent shipments.