Rediscover happier, healthier hair with Tints of Nature 4M Medium Mahogany Brown patented permanent hair dye for a natural, red twist on the classic brunette with subtle violet undertones. Tints of Nature 4M Medium Mahogany Brown home hair dye has been carefully developed with over 75% certified organic and 95% naturally derived ingredients, to gently nourish and protect your hair for gentle, home hair colouring. Tints of Nature 4M will provide maximum colour performance and up to 100% grey coverage and give long lasting results. At Tints of Nature they make sure all of their permanent home hair colours contain the lowest possible levels of PPD and remain ammonia, paraben and resorcinol free, so your hair can look and feel gorgeously healthy.