u/samir_falk
Contributes reviews on supplier material. Based in Medellín.
member · joined 11 Feb 2025
comment on [Caution] trying to conceive? that is a clinician conversation, not a forum one in c/glp1women · 2 points · 4 days ago
no cycle-tracking data with identifying details
comment on [Method] the gradient everyone uses for sema and why it under-resolves the des-amido in c/hplc · 81 points · 4 days ago
the detector wavelength matters more than people think
comment on [Lab] SSA tirz 10mg — Janoshik 99.1%, third batch in a row in c/tirzepatide · 7 points · 6 days ago
Hard agree. The food noise disappears differently on the two compounds.
comment on [Explainer] integration decisions change your number more than the sample does in c/hplc · 1 points · 7 days ago
the detector wavelength matters more than people think
comment on [Lane Report] Tianjin → Canada, 14 days, two of three vials cracked in c/intlshipping · 112 points · 18 days ago
the lane table is community-maintained, packaging changes
comment on [Trial Data] SURMOUNT-4 withdrawal arm is the scariest chart in this space in c/tirzepatide · 5 points · 20 days ago
Zepbound and Mounjaro are literally the same drug, the name is the only difference
comment on [Data] packaging quality by vendor, scored on five things, 60 shipments in c/intlshipping · 3 points · 21 days ago
lane reports need origin, destination, carrier, actual transit days
comment on [Data] packaging quality by vendor, scored on five things, 60 shipments in c/intlshipping · 58 points · 23 days ago
This is correct. Variance is the story.
comment on the contraception question that gets asked weekly, answered properly in c/glp1women · 0 points · 26 days ago
hormonal contraception interactions are speculative
Counter-anecdote: opposite result, same dose. Which mostly tells us the variance is huge.
comment on method development — 10 things I got wrong before I got it right in c/hplc · 19 points · 27 days ago
The PeptideMeter result being close to my own HPLC is the signal, not the absolute number. Both are right.
comment on what would you tell week-1 you about EMS in c/intlshipping · 5 points · 28 days ago
Slight fix: the number was 98.7, not 98.9. Decimal point, but a fairly consequential one.
comment on someone explain chromatogram to me like I have not read a paper in years in c/hplc · 55 points · 1 months ago
A shoulder on the main peak that 19 analysts integrated 3 different ways.
Disagree on that part. 99.2% and 99.3% on the same vial is normal.
comment on the Zepbound question that gets asked weekly, answered properly in c/tirzepatide · 1 points · 1 months ago
Did the the food-noise thing feel the same as on tirz or genuinely different?
comment on why does nobody talk about lane in c/intlshipping · 1 points · 1 months ago
DHL is faster but transit time, EMS is slower but cheaper
comment on three years of HPLC threads, summarised so you do not have to read them in c/hplc · 151 points · 1 months ago
a round-robin on baseline integration would be genuinely useful
comment on [Meta] the 15mg rule is doing its job and people should stop complaining in c/tirzepatide · 21 points · 1 months ago
Strongly agree. Tirz is better than sema is not a claim without a comparator dose.
comment on three years of EMS threads, summarised so you do not have to read them in c/intlshipping · 23 points · 1 months ago
customs clearance often adds 16 days, factor that in
comment on [Question] Sweden — has anyone got a straight answer on GIP in c/tirzepatide · 13 points · 2 months ago
nope, the equivalence to semaglutide is not known, comparing 15mg tirz to 2.4mg sema is guessing
comment on [Question] Sweden — has anyone got a straight answer on GIP in c/tirzepatide · -19 points · 2 months ago
do not crack the pen, we have been over this
comment on what would you tell week-1 you about Mounjaro in c/tirzepatide · 3 points · 2 months ago
SURMOUNT data is messier than STEP data but the weight loss is there