منبع: https://www.globalcosmeticsnews.com/fda-delays-proposal-to-ban-formaldehyde-in-hair-relaxers-amid-rising-health-concerns/
منبع: https://www.globalcosmeticsnews.com/fda-delays-proposal-to-ban-formaldehyde-in-hair-relaxers-amid-rising-health-concerns/