Alas, no. That is the great search, isn't it??

Honestly I co-wash with suave coconut since it has protein. I've used Vo5 kiwi lime, too. Then I follow up with a protein heavy RO or LI.

Cure care (also from Sally's) is protein heavy, and I use it as a LI. I keep meaning to try it as a co-wash, but have yet to do so. I'll keep you posted when I do!

I have tried adding a protein filler (Colorful Neutral Protein Filler - from Sally's or Amazon) to my co-wash with great success!!
2c/3a/3b, Fine/med, Dense, high porous, & normal elas.

Lo-poo - Renpure Keratin, SMR, Giovanni SaS
clarifying - mix Johnson's H2T with low poo
Co-wash - Suave Nats. clar. or coco.
RO - GVPCB, Ion Eff. Care, TN.
LI - SMR, Cure Care, or RO
Seal - MO or Jojoba
DT - + honey, ACV, & EVOO to SM masque & GVPCB
PT - Gelatin!, CNPF
Styling - FSG, AIF, BRHG, LALS/PS, GF curl spray gel, SM Souffle/Smoothie, LOOB
Oils - MO!, EVOO, jojoba, GSO, SM Elixer, EVCO, VO5 Hairdressing