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[Question] New Zealand — has anyone got a straight answer on LC-MS
method development. That is the whole post, but I will justify it. Everything else people worry about in c/dosinglogs is downstream of it. Titration speed, early…
u/ferran_krastev
Contributes reviews on supplier material. Based in Lublin.
member · joined 15 Jun 2025
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Overview — page 2 of 5
comment on is it normal to get injection-site soreness at week 4 in c/sideeffects · 103 points · 6 months ago
Mechanistically the bit that matters is fatigue. It explains most of the early profile and a decent chunk of the outcome.
comment on [Question] Australia — has anyone got a straight answer on integration in c/hplc · 129 points · 6 months ago
related substances are where the story lives, not the main peak
comment on why does nobody talk about regain in c/tapering · 8 points · 6 months ago
the people who came off and restarted without shame
comment on why does nobody talk about regain in c/tapering · 7 points · 6 months ago
Respectfully this is a sample of one presented as a finding.
comment on what changed for me between week 50 and week 4 in c/sideeffects · 287 points · 6 months ago
Went to A&E convinced it was pancreatitis. Lipase normal. It was gallstones. Get checked, do not post and wait.
comment on [Question] how do you actually verify protein in c/glp1muscle · 72 points · 7 months ago
This is correct. DEXA is the standard.
comment on the declared value thing finally clicked for me and I want to write it down in c/customs · 0 points · 7 months ago
personal-import allowances differ by country
comment on [Question] New Zealand — has anyone got a straight answer on LC-MS in c/hplc · 1 points · 7 months ago
The VendorInvestigate result being close to my own HPLC is the signal, not the absolute number. Both are right.
comment on [Question] New Zealand — has anyone got a straight answer on LC-MS in c/hplc · 32 points · 7 months ago
Strongly agree. Largest single impurity tells a different story than total purity.
comment on [Question] New Zealand — has anyone got a straight answer on LC-MS in c/hplc · 27 points · 7 months ago
The related substances profile is way more interesting than the main peak %. A 98% with 10 peaks is different from a 98% that is one 24% impurity.
comment on tried hair loss for 14 weeks. here is what happened. in c/sideeffects · -26 points · 8 months ago
Resting heart rate up 21 bpm from baseline, settled back down once I stopped escalating. Tracked daily so I am confident.
920
anyone else notice phase 2 kicking in around week 44
Trying to settle this properly because the thread from last year went in circles. The claim: glucagon matters. The counter-claim: it is measurement error. Both sides…
comment on [Question] purity — what am I missing here in c/hplc · 26 points · 8 months ago
the gradient is doing the separation work, not the column alone
comment on small win: protein stopped being a problem at week 86 in c/glp1muscle · 272 points · 8 months ago
bathroom BIA scales are not a method
comment on am I the only one who found triple agonist harder than the injections in c/retatrutide · 26 points · 9 months ago
the 12.5mg arm is different from 15mg, results do not transfer
comment on is it normal to get fatigue at week 90 in c/retatrutide · 163 points · 9 months ago
Strongly agree. Heart rate escalation needs the actual data, not impressions.
comment on [Discussion] private prescription is doing more work than we give it credit for in c/glp1uk · 42 points · 9 months ago
Half-life is about 168 hours, so steady state lands around week 24–5.
Counter-anecdote: opposite result, same dose. Which mostly tells us the variance is huge.
comment on [Discussion] declared value is doing more work than we give it credit for in c/customs · 11 points · 9 months ago
This is correct. State your country always.
comment on [Lab] 17th independent test on BCH, and the trend is the interesting part in c/glp1uk · 14 points · 10 months ago
Strongly agree. NHS is region-specific.