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ForumsBuyer Beware⚠ AliExpress semaglutide — Janoshik found heavy metal contamination

⚠ AliExpress semaglutide — Janoshik found heavy metal contamination

HPLC_Greg Sun, May 31, 2026 at 11:04 PM 6 replies 327 viewsPage 1 of 2
HPLC_Greg
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May 31, 2026 at 11:04 PM#1

Posting this as a warning rather than a discussion, and I will edit the post if any of it turns out to be wrong.

I have been on semaglutide for nine months, currently holding 1.7mg rather than pushing to 2.4mg, and the last two dose steps bought me much less than the first two did.

That holds for the injectable. The oral formulation has different absorption behaviour and the dose numbers are not interchangeable, which is worth saying out loud because people quote them as if they were.

What to check: Worth knowing that the injection site changes very little. Abdomen, thigh and upper arm are bioequivalent for semaglutide, so a site change is not a plausible explanation for a bad week.

If your experience contradicts this, say so in the thread — I would rather be corrected here than have people act on a warning that does not hold.

28 23SallyK_inj, CryptoCarl, MariaRD and 25 others
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FDA_TrackerJim
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May 31, 2026 at 11:10 PM#2
HPLC_Greg said:
I have been on semaglutide for nine months, currently holding 1.7mg rather than pushing to 2.4mg, and the last two dose steps bought me much less than…

Agreed, though "tolerable" needs defining. A dose you tolerate by eating almost nothing is not tolerated, it is being paid for somewhere else — usually in lean mass, sometimes in adherence three months later.

27 22Admin, Dr.Martinez, mike_mod and 24 others
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PeptideChemSF
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May 31, 2026 at 11:16 PM#3
HPLC_Greg said:
I have been on semaglutide for nine months, currently holding 1.7mg rather than pushing to 2.4mg, and the last two dose steps bought me much less than…

I will push back on the "any working dose is fine" framing. The maintenance evidence sits overwhelmingly at the top studied dose, and the extension data shows regain tracking dose reduction rather than tracking stopping. Holding low is reasonable; pretending it is evidentially equivalent is not.

Last edited: Jun 1, 2026 at 3:16 AM
26 21FDA_TrackerJim, ricardo_MIA, BrianDallas92 and 23 others
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LindaRN_retired
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May 31, 2026 at 11:22 PM#4

This one has a reasonably settled answer, so here it is. Steady state is the thing most people miss. The terminal half-life is about a week, so every dose step takes four to five weeks to fully express itself. Judging a step at day ten is judging the ascent, not the plateau, and it is the single commonest reason people escalate before they needed to.

25 20LondonLisa, mike_nyc, VendorMark and 22 others
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tyler_CSCS
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May 31, 2026 at 11:53 PM#5
FDA_TrackerJim said:
Agreed, though "tolerable" needs defining.

All true, with one condition: that curve is for people who reached the dose on schedule. Anyone who slowed the ladder for tolerability is on a different, flatter curve, and comparing yourself with the published mean will make you feel like a non-responder when you are not.

24 19bbq_ray_KC, oliver_london, tane_welly and 21 others
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