LogonaHenna Black 100%Botanical Herbal Hair ColorForBrown to Dark Brown Hair-3.5 oz.(100g) Logona'sHenna Black 100% Botanical Herbal Hair Color is especially gentle to your hair and contains only natural colorants such as organic henna, ground walnut shells, or indigo leaf. Since Logona is not using artificial colorants, their hair colors are not meant to provide 100% coverage. Instead, Logona's100%Botanical Herbal Hair Dyes"mix" with your natural hair color for a more natural look. Logona's Henna based Henna Black 100% Botanical Herbal Hair Color powder is100% natural. This means: No synthetic colorants or PPDs No synthetic fragrances or preservatives No peroxides or ammonium Certified natural by BDIH and NaTrue Logona Herbal Hair Dyes Color in Harmony with Nature Henna Black Herbal Hair Color coats each hair strand with a coloring and strengthening layer that actually adds volume and shine. Only henna and other natural plant colorants, such as walnut shells and beet root, provide the color. Plant-derived conditioners make application and comb-out easier, and improve your overall hair structure for a softer, healthier texture. Henna Black depens and intensifies the darkness of brown and black hair. It should not be used to color gray, unless mixed with a red-based color. Depending on your beginning hair color, your color result should lie within the shown range. Check out Logona'sColor Chart to match their colors to your hair color. Standards and Quality Manufacturing personal care products without synthetic preservatives requires especially careful handling of both raw materials and finished products, as the slightest contamination can ruin an entire production run. Logona utilizes GMP (Good Manufacturing Practice), the pharmaceutical industry's production standard, to guide their manufacturing processes. Logona also continuously improves their products' quality to keep current with advances in manufacturing and ingredient standards.