I use C: EHKO for about 3 years, since my hairdresser has recommended this product. This tint is easy to apply and very natural in color. There used to be C: EHKO at authorized resellers, more recently ordered through Amazon. Have 5 star award, also for the pleasant contact with the supplier. Apparently the first shipment is stuck on the delivery route through the high parcel volumes at Christmas time and the delivery date specified is exceeded. After Info on Amazon immediate 2.te mission was sent, which was then delivered within two days. Excellent!