Just used 2 boxes of 4G Dark Golden Brown-Golden Chocolate semi permanent dye for my long hair. I have naturally dark brown hair asian hair that i had highlighted. i wanted to go darker for the fall today. ive used this once before (in Medium Brown #5) and had great results. Comes out very dark in the beginning but its no big deal. Everyone who uses semi/demi knows that it will fade out. The box says 28 shampoos but it goes much quicker depending on how often you wash. i wash every night so it fades quick. i just started using the l'oreal sulfate free wash so hopefully this extends my color. the conditioner was very moisturizing and my hair feels soft & the color is very rich. remember, to dye over blond highlights, do NOT use "ASH" or "cool", go for the dyes with the words, "golden" or "warm" in them. these will have red in them and wont turn your blond streaks green. $7.99 a box at Target. i took one lippie off because the formula is very runny.