Science shows that underwear presents a meaningful chemical exposure concern due to prolonged, direct contact with sensitive genital tissue. Contaminants including heavy metals, bisphenols, PFAS, phthalates, formaldehyde, and carcinogenic aromatic amines have all been documented in intimate apparel, introduced primarily through dyes, finishes, and functional fabric treatments. Dark, heavily dyed, and synthetic fabrics consistently show higher chemical loads.
This is HIGH PRIORITY because underwear is worn against some of the body's most absorptive tissue for extended periods every day. Migration increases with heat and sweat.
Laurel recommends underwear made primarily from plain, light-colored organic cotton that is both GOTS-certified and OEKO-TEX Standard 100 certified. A small amount of spandex (also known as elastane or lycra) is acceptable where necessary for tight-fitting stretchy garments.
Laurel avoids synthetic materials (polyester, nylon), semi-synthetic materials (rayon, modal, viscose, lyocell), and patterned or brightly colored styles (as heavy dye loads are associated with higher concentrations of metals and chemical residues).
Tip: This is one of the highest-impact swaps you can make -- start here if you're prioritizing which clothing to switch first. Also, always wash new clothing before use.
Science showsunderwear presents a meaningful chemical exposure concern due to prolonged, direct contact with sensitive genital tissue. Contaminants including heavy metals, bisphenols, PFAS, phthalates, formaldehyde, and carcinogenic aromatic amines have all been documented in intimate apparel, introduced primarily through dyes, finishes, and functional fabric treatments. Dark, heavily dyed, and synthetic fabrics consistently show higher chemical loads.
Laurel recommends underwear made primarily from plain, light-colored organic cotton that is both GOTS-certified and OEKO-TEX Standard 100 certified. A small amount of spandex (also known as elastane or lycra) is acceptable where necessary for tight-fitting stretchy garments.
Laurel avoids synthetic materials (polyester, nylon), semi-synthetic materials (rayon, modal, viscose, lyocell), and patterned or brightly colored styles (as heavy dye loads are associated with higher concentrations of metals and chemical residues).
Tip: This is one of the highest-impact swaps you can make -- start here if you're prioritizing which clothing to switch first. Also, always wash new clothing before use.