I don't know what the treatment does for your hair, so I'm not sure this is a match. You may want to look into Olaplex. Olaplex is a hair treatment done in salons and it rebuilds structural bonds in the hair. It can be used alone, but it's often a process used with color treating hair, especially when bleach is used, as bleach breaks down hair bonds.
Olaplex in the salon has two version, step 1 and step 2. They've made a home version of step 2 and call it step 3. Olaplex Step 3 is available at Sephora for $28. Diane Mary reports she can get 4 uses out of a bottle. If you use it every week, that's $28 a month. You can use it less often if you want to save money. Here's her review on YouTube: https://www.youtube.com/watch?v=8N45co9mxEI.