Introducing conscious innovation with this down to earth pillowcase. This proprietary Clean 100% Mulberry Silk Pillowcase uses only a fraction of the chemicals that other silk uses in production. Featuring an Oeko-tex certification, meaning, it has been rigorously tested to ensure zero harm to your health. & this toxin free, 6A grade quality silk provides countless beauty benefits including reducing fine lines, hair breakage & breakouts. This silk pillowcase is the best for hair and skin.