Hauv 2026, thoob ntiaj teb wig cov cai nruj nruj. US Healthy Hair Act txwv formaldehyde hauv cov khoom siv wig. EU hloov kho cov kev cai tshuaj pleev ib ce, ntxiv 15 CMR tshuaj rau kev txwv, yuam kev hloov kho cov qauv. UK Beauty Council launched 4 tshiab kev lag luam kev faib cov lej rau cov kev pab cuam wig, txhim kho cov ntaub ntawv sau thiab qauv. Cov kev hloov pauv no txhawb kev lag luam kev ua haujlwm tsis tu ncua, tsav cov hom lag luam kom siv cov khoom siv zoo / eco-phooj ywg, thiab txhim kho kev sib tw tag nrho.