I had been a modified CG for years where I used a low poo every week. Recently, I decided to take it to the next level and now do cowashes a few times a week with a supplemental shampoo bar wash every 2 weeks or so. My hair has loved it for the most part. However, I still have those dreaded second days. I can make my hair look decent, but theres quite a bit more frizz and my hair feels rough and dry and looks a little dull.

Tweek sounds right up my alley as a second day product. However because of my limited "washing" I'm afraid it will build-up. Johathan Torch claims the product is water-soluble, and I hope that is the case. However, before I order I'd like to ask other CG's are using/have used Tweek while doing CG. If so, what was your experience? Did it work? More importantly, did it build-up?
Have several allergies and sensitivities.
Current products
Low Poo/Cowash: Rio Grande Herb Co Negrita and Amole Deep Treatment Concentrate, Magick Botanicals (MB) Shampoo (diluted)
Rinse out/Leave in: MB with apricot kernel and jojoba oils added
Protein Treatment: MB Conditioner for Thinning Hair, IAgirl's protien treatment
Style: MB Gel mixed with LOTD Aloe Vera Gelly

2b-c, need lots of moisture, likes protein in moderation.