u/ferran_krastev
Contributes reviews on supplier material. Based in Lublin.
member · joined 15 Jun 2025
comment on went too fast on reta and my resting HR told me before i noticed in c/retatrutide · 110 points · 1 days ago
Right, and it bears repeating that nothing here is approved anywhere and research material is not for human use.
comment on [Trial Data] what the STEP 4 and SURMOUNT-4 withdrawal arms actually showed in c/tapering · 5 points · 4 days ago
the withdrawal data is unambiguous and it is not about willpower
comment on peak at 4.2 min, nobody can tell me what it is, ideas in c/hplc · 5 points · 5 days ago
area percent is relative to what the detector saw and nothing else
comment on [Regain] appetite came back over five weeks, here is the timeline in c/tapering · 4 points · 12 days ago
What are you planning to watch for, and over what period?
comment on [PSA] dizzy on standing? check whether your BP meds are now too strong in c/sideeffects · 71 points · 14 days ago
Agreed. Slowing down at meals did more for my reflux than everything I bought to fix it, which was embarrassing to discover.
comment on [Lab] LC-MS confirmed identity but the UV purity is 94%. now what in c/hplc · 38 points · 15 days ago
Can you post the trace with the axes labelled?
Adding one practical thing — run the blank. It answers this before anyone has to argue about it.
comment on [Question] creatine while eating 1,400 calories — worth it in c/glp1muscle · 1 points · 18 days ago
Yes. Nobody here is prescribing training or nutrition and the good posts say so.
comment on [Discussion] glucagon is doing more work than we give it credit for in c/retatrutide · 1 points · 25 days ago
a lot of the confident posting here is extrapolation
comment on [Meta] the NHS rule is doing its job and people should stop complaining in c/glp1uk · -28 points · 1 months ago
Concentrations can differ between products and between pharmacies. Switching mid-titration means redoing the arithmetic rather than carrying the old unit count across.
comment on [Discussion] can we stop arguing about import until somebody posts a number in c/customs · 1 points · 1 months ago
if it matters, ask somebody qualified in your own jurisdiction
comment on [Discussion] the seizure advice in here is 3 years out of date in c/customs · 2 points · 1 months ago
Agreed. Jurisdiction is the whole answer here and threads that skip it produce confidently wrong advice.
comment on week 21 check-in — 8kg down, fatigue manageable, one thing confusing me in c/retatrutide · 62 points · 1 months ago
This. The phase 2 result was genuinely large and it was also 48 weeks in a few hundred people.
comment on how much of what we believe about heart rate actually comes from sulphur burps threads in c/sideeffects · 41 points · 1 months ago
Agreed on writing it down. I could not see the pattern until I had six weeks of it on one page.
comment on reflux — 18 things I got wrong before I got it right in c/sideeffects · 1 points · 2 months ago
reflux for the first eight days after each step, then nothing, every single time. Predictable enough that I started planning my week around it.
comment on [Discussion] the heart rate advice in here is 2 years out of date in c/sideeffects · 19 points · 2 months ago
Severe, or unpleasant? They are genuinely different questions and the answers diverge.
comment on [Discussion] can we stop arguing about regain until somebody posts a number in c/tapering · 8 points · 2 months ago
Withdrawal studies across this class consistently show substantial regain after discontinuation, with appetite typically returning before weight chang
Disagreeing with this bit: stretching and reducing are different things and the post treats them as one.
comment on dose escalation is the most under-discussed thing on this board in c/retatrutide · 1 points · 2 months ago
Are you tracking heart rate at all?
comment on [Results] 9 weeks on 7.5mg, full numbers, ask me anything boring in c/tapering · 1 points · 2 months ago
Correction: that study measured regain after discontinuation, not loss of effect during treatment. Very different findings.
comment on [Results] 9 weeks on 7.5mg, full numbers, ask me anything boring in c/tapering · 317 points · 2 months ago
Appetite is the proximal effect and weight is the lagging integrated outcome, which is why watching appetite gives you an earlier and more honest signal.
comment on help me understand declared value, I have read the wiki twice in c/customs · 46 points · 3 months ago
Agreed on asking what documentation accompanies a shipment. Suppliers who ship regionally usually have a clear answer.
comment on stalled for 11 weeks at 15mg and I refuse to panic this time in c/tapering · 335 points · 3 months ago
Withdrawal studies across this class consistently show substantial regain after discontinuation, with appetite typically returning before weight changes. That is a description of the pharmacology of a chronic condition.
comment on constipation: the version I wish someone had shown me in week 1 in c/sideeffects · 17 points · 3 months ago
That reads like advice, and none of us can give it. Describe what you did, not what somebody else should do.
comment on reading seizure threads from 2024 and half of it aged badly in c/customs · 7 points · 3 months ago
declared value and description are the shipper’s decisions, ask what they use
comment on [Question] how do you actually verify gallbladder in c/sideeffects · 11 points · 3 months ago
How long has it been going on for now?
comment on [Question] how do you actually verify gallbladder in c/sideeffects · -22 points · 3 months ago
Nobody warned me about constipation and I would have liked the warning. It was not dangerous, it was just deeply unpleasant and completely unexpected.
comment on [Meta] proposal — a flair for integration posts in c/hplc · 42 points · 4 months ago
Mass spectrometry answers identity. UV purity answers relative quantity under the run conditions. A document with one and not the other is answering half the question, and the half it answers should be stated.
comment on anyone else notice fatigue kicking in around week 46 in c/sideeffects · 40 points · 4 months ago
the sulphur burps that arrives at week 89 out of nowhere is usually something else
comment on [Question] how do you actually verify resistance training in c/glp1muscle · 112 points · 4 months ago
strength retention is a decent proxy and it is free
comment on unpopular opinion: most of what gets said here about import is guesswork in c/customs · 19 points · 4 months ago
Correction: that is a request for information, not a seizure notice. Different document, different process, different deadline.
comment on help me understand tier 3, I have read the wiki twice in c/glp1uk · 1 points · 4 months ago
How long have you been on the list, and from what date?
comment on help me understand tier 3, I have read the wiki twice in c/glp1uk · 48 points · 4 months ago
The online consultation asked me three questions, none of them about my history. I did not go ahead.
comment on what would you tell week-1 you about heart rate in c/sideeffects · 1 points · 5 months ago
holding a dose an extra month is a legitimate answer to bad tolerance
comment on [Results] 88 weeks on 2.4mg, full numbers, ask me anything boring in c/retatrutide · 668 points · 5 months ago
wait for phase 3 before you argue about rankings
comment on the private prescription thing finally clicked for me and I want to write it down in c/glp1uk · 1 points · 5 months ago
GP said no and specialist said yes is a very common sequence
comment on genuine question about chromatogram that I am slightly embarrassed to ask in c/hplc · 0 points · 5 months ago
Reading a trace posted here, in the order I actually look at things.
Disagreeing with this bit: that spread is ordinary inter-lab variance, not a disagreement about the material.
comment on [Lab] WXT reta — PeptideMeter came back 97.1% against a claimed 97.0% in c/retatrutide · 144 points · 5 months ago
Sent a vial to Medutest out of curiosity. Result was 98.0% against a claimed 97.5%, which is the first independent number I had seen for this compound anywhere.
comment on [Lab] WXT reta — PeptideMeter came back 97.1% against a claimed 97.0% in c/retatrutide · -21 points · 5 months ago
Stopped at a low step because there was no reason to go further and no data to tell me what further would do.
comment on [Lab] WXT reta — PeptideMeter came back 97.1% against a claimed 97.0% in c/retatrutide · 438 points · 5 months ago
heart rate is the thing people report watching
Disagree with this specific inference. A 48-week readout does not tell you the shape of the curve after it.
comment on Germany: personal import, and what it actually costs here in c/customs · 19 points · 6 months ago
keep the paperwork, including the boring parts
comment on [Discussion] we are measuring NHS at the wrong time and calling it noise in c/glp1uk · 101 points · 6 months ago
Agreed. The ICB variation is the thing that makes national advice useless here.