Mast-E has basically disappeared since the raw ban - anyone got a proper experience report before the community forgets what it felt like?

BigDaddy confirmed a while back that Mast-E is basically not being produced anymore because of the China raw restrictions and there's no restock timeline. Stock is very limited and when it's gone it's gone for the foreseeable. Ran it at 400mg through my last prep and it was genuinely one of the better compounds I've used in that role - the hardening effect from week 3-4 was real, and the mood and libido benefit at lower doses year-round was underrated. Wanted to get some proper experience logs down while people still have fresh memories of it, before it becomes one of those compounds that people only half-remember. What were you running it for, what dose, and what did you actually notice?

Good thread to have on record. Mast-E supply is genuinely tight right now - the raw material restrictions have hit it harder than most compounds. No restock timeline I can give you at this stage. Mast-P is still available but the enanthate ester is a different situation.

Useful thread to have on record. With Mast-E supply this thin, capturing real experience reports while members still remember running it is genuinely valuable for the archive.

Ran Mast-E at 200mg a week alongside my TRT for nearly a year before stock dried up and the mood plus libido lift was the main thing for me, the hardness was a bonus. Pulled it for three months when supply ran out and the difference was real, sex drive flattened and I felt less sharp on the back end of the day. Hoping the China situation eases at some point because at low dose it was probably the cleanest add I've ever done.

The mood and libido point is the one I'd back hardest. Ran 200mg Mast-E year-round on my TRT cruise for about 18 months and it was the cleanest I've ever felt without a real AI in the mix. E2 stayed in the upper end of range without crashing, libido was rock solid, and I never had the dry joints you get from anastrozole. With the supply gone now I've been trying proviron at 50mg as a partial substitute but it's just not the same compound, the long ester delivery on Mast-E gives a steady feel that orals never replicate.

Six months ago I had three vials of Mast-E in the drawer and felt overstocked, now I'd pay double per ml and still can't find any worth buying. The China ban hit Mast harder than most compounds because nobody bothered stockpiling something that was always cheap and available. If anyone's still got a stash and is about to run it, log the cycle properly, the rest of us are reading these threads to remember what mast actually does at the moment.

Can vouch for the body fat point someone made earlier. Ran it at 400mg from week 6 last prep and the difference compared to the prep before was significant. Year before I came into the compound carrying too much and barely noticed the hardening until the last fortnight. Once I was already lean when I started pinning it, the effect was obvious within two weeks.

One underrated argument for prop over E was the timing control in peak week. If you start coming in too dry or water sits somewhere odd, you can pull Mast-P fast. With the E ester that window is pretty much gone by the time you realise something is off. That actually mattered more to me prep-to-prep than the pinning frequency.

Nothing quite replaces it for what it does at that stage. Primo is the closest but it adds fullness more than it tightens. Mast was more about hardening what you already had dialled in. Going to miss having it as a reliable option.

Confirmed what's been said here. Mast-E production is basically at a standstill right now. China raw restrictions hit it hard. We have very limited stock and I genuinely can't give a restock timeline. If you want it, get it now. No idea when that changes.

The year-round 200mg add-on for mood and libido is where I think Mast-E actually shines most. A lot of guys ran it just for prep visuals but the quality of life improvement at low dose on a TRT base is real. If supply ever comes back properly that's where I'd go back to it first.