Aveda Full Spectrum Permanent Creme Hair Color 2.8 oz (6N) Natural Dark Blonde An up to 93% naturally derived formula, which delivers outstanding fade-resistant color. Organic sunflower, castor, and jojoba oils infuse the hair with incredible shine and condition and with results lasting up to eight weeks or 40 washes. All this is possible with a new gel formula that drives into hair and penetrates without the use of ammonia.