Not yet. I bought 4 online so I'm just going through them for the next 2 years.
This is a list I created of thio relaxers that I found, but I haven't tried any of them yet:
https://www.matrixprofessional.ca/en/texture/opti-smooth
https://us.amazon.com/Transformacao-Tioglicolato-Amonia-Salon-Line/dp/B073YK9BTZ
https://shopbeautylicious.com/products/wave-nouveau-texturizing-system-shape-release-step-1
https://www.amazon.com/LISCIO-Crystal-Cream-Straighteners-Neutralizer/dp/B005GYMI96
https://chi.com/chi-products/chi-texture/chi-transformation/