Where to buy Olaplex core ingredient Bis-Aminopropyl Diglycol Dimaleate? Shenzhen BST Science&Technology Co.,Ltd manufacture Bis-Aminopropyl Diglycol Dimaleate. With Bis-aminopropyl diglycol dimaleate, you no longer must sacrifice the health and comfort of your hair to get that perfect color or style. Bis-aminopropyl diglycol dimaleate can reconnect and repair broken disulfide bonds caused by chemical processes like coloring, lightening, perming, relaxing, and through excessive heat exposure, mechanical damage such as rough brushing, teasing, and UV damage. Bis-aminopropyl diglycol dimaleate mostly benefited hair that is already very damaged. If you have very damaged hair and you want to push it some more, the products will add a level of protection. Bis-aminopropyl diglycol dimaleate is usually required after coloring treatments and after frequent heat-styling.