Contributes reviews on supplier material. Based in Osijek.
member · joined 15 Jun 2025
Overview — page 2 of 2
comment on the bacteriostatic water question that gets asked weekly, answered properly in c/reconstitution · 15 points · 1 year ago
label the vial with the date as well as the concentration
comment on unpopular opinion: most of what gets said here about area percent is guesswork in c/coa · 72 points · 1 year ago
batch number, date of analysis, method, individual impurities — that is the minimum set
Something I keep coming back to: unpopular opinion: most of what gets said here about area percent is guesswork. Spent four months confusing area% and mass% in every…
comment on unpopular opinion: most of what gets said here about certificate of analysis is guesswork in c/coa · 76 points · 1 year ago
Area percent or net peptide content? They answer different questions.
comment on [Discussion] can we stop arguing about mg/mL until somebody posts a number in c/reconstitution · -2 points · 1 year ago
units are a volume on a U-100 syringe, not a dose
comment on tried weight for 3 weeks. here is what happened. in c/dosinglogs · 145 points · 1 year ago
Careful — posting a log as a schedule for other people to follow is not what this board is for.
comment on three years of water content threads, summarised so you do not have to read them in c/coa · 107 points · 1 year ago
Agreed on asking for the storage condition. It is one line and it changes how you read the entire stability claim.
comment on how much of what we believe about batch actually comes from purity threads in c/coa · 152 points · 1 year ago
the related substances line is where the story is
comment on genuine question about weekly update that I am slightly embarrassed to ask in c/dosinglogs · 13 points · 1 year ago
Cosigning on missed weeks. Leaving them blank makes the whole series misleading.
comment on [Lab] split one vial across VendorInvestigate and PeptideMeter — 97.2% and 96.8% in c/coa · 35 points · 1 year ago
HPLC-UV and LC-MS answer different questions
comment on insulin syringe is the most under-discussed thing on this board in c/reconstitution · 27 points · 2 years ago
I would not round that figure. At 1.67mg/mL a rounding error of two units is a real fraction of the intended amount.
comment on [Question] how do you actually verify weekly update in c/dosinglogs · 161 points · 2 years ago
waist monthly, weight weekly, notes whenever
comment on how much of what we believe about weekly update actually comes from tracking threads in c/dosinglogs · 3 points · 2 years ago
That template is elaborate enough that you will stop using it by week ten. Mine was.
comment on [Meta] proposal — a flair for units posts in c/reconstitution · 338 points · 2 years ago
Aim the stream down the wall of the vial rather than into the cake.
This is the sentence that makes the rest unnecessary. Write it on the vial and the problem is gone.
comment on [Question] purity — what am I missing here in c/coa · 275 points · 2 years ago
Yes — and the reason to ask for the whole page is that the interesting parts are the ones people crop out to fit a screenshot.
comment on how much of what we believe about reconstitution actually comes from concentration threads in c/reconstitution · 99 points · 2 years ago
How many mg in the vial and how many mL are you adding?
comment on [Meta] proposal — a flair for bacteriostatic water posts in c/reconstitution · 188 points · 2 years ago
This. Showing the working is the fastest way for somebody else to spot the mistake.
comment on [Lab] 16th independent test on WXT — 99.3% on a claimed 98.5%, and the trend is the interesting part in c/coa · 41 points · 2 years ago
identity and quantity are two questions and most documents answer one
comment on unpopular opinion: most of what gets said here about concentration is guesswork in c/reconstitution · 1 points · 2 years ago
This. Showing the working is the fastest way for somebody else to spot the mistake.
comment on genuine question about reconstitution that I am slightly embarrassed to ask in c/reconstitution · 14 points · 2 years ago
Research-use-only material is not approved for human use, so treat everything in this thread as arithmetic about solutions rather than instructions for a person.
comment on reading concentration threads from 2024 and half of it aged badly in c/reconstitution · 68 points · 2 years ago
Disagree with the "more water is safer" framing. It is not safer, it is just a different number to divide by.
comment on reading concentration threads from 2024 and half of it aged badly in c/reconstitution · 15 points · 2 years ago
Yes, and the dead-space point is worth repeating: it is small, it is real, and it is the same for every draw.
comment on does dead space actually matter or is it forum lore at this point in c/reconstitution · 25 points · 2 years ago
label the vial with the date as well as the concentration
comment on does dead space actually matter or is it forum lore at this point in c/reconstitution · 169 points · 2 years ago
Yes. Writing 5mg/mL on the vial takes four seconds and removes the entire class of error this board exists to fix.
No trophies yet. Most accounts here never get one.
Independent HPLC and mass spec. The number you get is the number they found.
janoshik.comSponsoredCustom peptides and amino acids direct from the manufacturer since 1998. ISO 9001 / cGMP. Batch COA every order.
glbiochem.netSeveral compounds discussed on GLP Research Hub are sold for research use only and are not approved for human use anywhere. Nothing here is medical advice and none of it is written by your clinician. If a post reads like an instruction, treat it as a description of what one stranger did.
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