Ibyerekeye ibicuruzwa byacu bya Signwell. Ubuso bwimpapuro buroroshye kandi bwera bwera, butagira jam kandi bwangiritse.Ibikoresho bihoraho byumuvuduko ukabije wumuvuduko, Hamwe nubwiza bwinshi hamwe nubushyuhe bwiza bwo guhangana nubushyuhe, byujuje ubuziranenge bwa 175.105 bwikigo cy’Amerika gishinzwe ibiryo n’ibiyobyabwenge (FDA), kandi gishobora gukoreshwa neza kutamenyekanisha bitaziguye ibiryo, ibiyobyabwenge na cosmetike.Ireme ryiza kandi ryangiza ibidukikije ubushyuhe bwumuriro, nta bintu byangiza bispenol A.