Madison Reed vs. Gray Coverage: Tested Amaretto Red, 6NCG... Hair Dye Showdown! We were eager to test Madison Reed’s Radiant Hair Color Kit in 6NCG Sardinia Red for 100% gray coverage. The ammonia-free formula appealed to us, and the medium amaretto red shade promised a rich, natural vibe. Application was effortless—no funky smell, just a gentle, salon-like scent. The results were… well, underwhelming. While the dye covered the grays, the color leaned more reddish-brown than true amaretto red, leaving us slightly disappointed. It’s permanent, which is a pro, but the lack of longevity in shade accuracy left us wanting more. Would we recommend it? Maybe for those who prefer a warmer, less vibrant alignment to amaretto red. Our journey with Madison Reed’s 6NCG was a solid experience, but not without its fair share of trade-offs.