To answer your question, I bought their TNE and TRE , 10 bottles each (cuz why not?)
Good lord I could taste smell and hallucinate the guaiacol in it when I tried it for pre workout. Also insane PIP (injected in chest) that quickly fade and formed a lump (will probs dissolve in a week). For reference I had TNE and TRE that used PEG MEG carrier instead and there was no smell, no immediate pain development(lump and pip the next day , as others noted)
If it’s not a stable oil product injectable (i.e an oral made into injectable, suspension, water based and is known to crash at certain concentrations when home-brewed), then most likely it has EO/guaiacol in it.
Will still use the TNE and TRE tho insane focus and strength tho
Based on their menu selection, SSA, HYB and SRY probs share the same manufacturer for specific overlapping products. So if one reported there is EO/Guaiacol, all other chiense vendors here probs have it as well (bad generalization, ik, but if you are really worried, best to stay clear against those specific products.)