2iu in my personal experience isn’t going to do much but a little extra fat burn.
3-4iu a day is what I would minimum do of pharma grade.. when benefits to cost are much more worth it.
I use it with slin as well but at 4iu.
I wouldn’t cycle slin past 6weeks and really best post workout.
Can I ask what yoour goals are? How old are you as well?
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Also 2iu per day forever can be done, tho I advice against it.
2iu is more a therapeutic dose for anti-aging and slight fat burn and healing.