For many years my "go to" shampoo and conditioner was the pink bottle Fekkai line. However, they recently changed their bottles (hence, formulas) and the product is no longer nearly as good as it used to be. During the last year (give or take) I've taken the opportunity to try several high-end brands. Disclaimer: my hair is baby fine, bleached highlights and naturally wavy and frizzy. Of the many brands I've sampled, including Oribe, Kerastase, Puretology, Redken, Olaplex, etc, I can without a doubt share the only three brands which were stand-outs and only one of each brand are worth spending on in my experience. They are as follows:
- Olaplex 3 for conditioning once weekly;
- Puretology Smooth Perfection Shampoo and Conditioner;
- Drunk Elephant Glossing Shampoo and Marula Butter Cream Conditioner.
I hope this helps some narrow down potential products on which to $pend.
I will add to your list Tweak'd shampoo which is a different way of shampooing, but nonetheless
my hair is in great condition & I now color at home & have put off the highlights likely til fall
so my hair is really healthy