700-1400 trenbolone is a gargantuan range. Generally for me and people I have asked, the "strength" of trenbolone compared to testosterone is somewhere around 3-5x. So 700mg trenbolone would feel like at minimum 2g test, even though the two don't feel the same, on their own respective scale of measuring it. A comment here, I am not referring to the degree of side effects, just how powerful the compound feels in terms of changing your physique, strength, aggression et.c. I am calling bullshit on 1400mg trenbolone, it would stimulate you so much that anxiety levels would be through the roof, even if you are a calm person. In real life, I have yet to talk to someone who can handle 700mg trenbolone and still do a meaningful cycle with enough sleep, food, not feeling like shit et.c.
Anyway to answer your question, if you have injection issues, then glutathione or NAC will not help. I would bet it has to do with the gear itself, and if I would guess which factor, it would be the carrier oil, sterility or solvents used which don't agree with you.