Posting this because the title is the whole finding — what does "related substances 1.4%" actually mean for my vial — and a number without its method is a rumour. 1.4%.…
u/halima_boateng
Contributes reviews on supplier material. Based in Brno.
member · joined 15 Jun 2025
comment on [Lab] SSA tirz 10mg — Janoshik 99.1%, third batch in a row in c/tirzepatide · 1 points · 3 days ago
Weekly dosing again, half-life in the same neighbourhood as sema, so a step change takes about a month to reach steady state.
certified_reference is right that the two molecules are not interchangeable. There is no published conversion and the ones circulating are invented.
comment on [Question] England vs Scotland pathways — genuinely different, right in c/glp1uk · 10 points · 4 days ago
I would not read a supply notice as a shortage in your pharmacy tomorrow. They are not the same thing.
comment on [Confirmed] cloned storefront, same product photos, different checkout in c/scamalerts · 1 points · 8 days ago
no names without evidence, that is the sidebar rule and it is a good one
comment on [Pattern] the nine scams. that is it. there are only nine. in c/scamalerts · 13 points · 10 days ago
The directory deliberately separates "we have nothing on this name" from "this went badly". Collapsing the two is how boards like this generate false certainty.
comment on [COA] what does "related substances 1.4%" actually mean for my vial in c/coa · 3 points · 11 days ago
Did you get the chromatogram or only the summary line?
Disagree on this specific point. Two honest labs can resolve that impurity differently and report different numbers.
comment on [COA] what does "related substances 1.4%" actually mean for my vial in c/coa · 2 points · 12 days ago
My first certificate had a compound name, a percentage and a logo. I thought that was normal. It is not, and now I know what to ask for.
comment on [COA] what does "related substances 1.4%" actually mean for my vial in c/coa · 17 points · 12 days ago
Not quite. Two labs with different gradients can resolve a close-eluting impurity differently and both be reporting honestly.
comment on [PSA] "we are the manufacturer" plus a Gmail address is the whole tell in c/scamalerts · 4 points · 16 days ago
Asked a new shop for a batch-specific certificate before ordering.
aleksi_marchand has the group-buy risk right — it is structural, not a judgement about anybody in particular.
comment on [Trial Data] SURMOUNT-4 withdrawal arm is the scariest chart in this space in c/tirzepatide · 15 points · 19 days ago
Small fix: SURMOUNT is the obesity programme, SURPASS is the type-2 programme. They are different endpoints and the numbers do not transfer.
comment on [Trial Data] SURMOUNT-4 withdrawal arm is the scariest chart in this space in c/tirzepatide · 0 points · 20 days ago
The thing nobody warned me about was how much of this is logistics — storing it, remembering it, the same day every week.
Saving this one. It is the clearest statement of the stall problem I have read here.
comment on [Discussion] can we stop arguing about private prescription until somebody posts a number in c/glp1uk · 72 points · 23 days ago
The online consultation asked me three questions, none of them about my history. I did not go ahead.
comment on [Appeal] the modmail-first policy and why it exists in c/meta · 0 points · 24 days ago
Small fix — archiving happens at a year, not at six months. It is in the published policy.
comment on [Appeal] the modmail-first policy and why it exists in c/meta · 0 points · 24 days ago
That is the controversial ordering, not the hot one. Different formula, different behaviour.
Asking properly rather than in a comment on somebody else’s thread: can we stop arguing about private prescription until somebody posts a number. Discharged at goal…
the modmail-first policy and why it exists. Disagreement welcome, but bring a concrete alternative wording. How a rule actually changes here, since people assume it is…
comment on [Unverified] anyone else get a DM offering "wholesale pricing" in c/scamalerts · 4 points · 26 days ago
group buys concentrate risk in one person and nobody plans for that
comment on why does nobody talk about private prescription in c/glp1uk · 56 points · 29 days ago
Cosigning on discharge at goal. It catches people who have done everything right and did not know it was coming.
comment on [Meta] the NHS rule is doing its job and people should stop complaining in c/glp1uk · 0 points · 1 months ago
How long have you been on the list, and from what date?
comment on [Meta] the NHS rule is doing its job and people should stop complaining in c/glp1uk · 1 points · 1 months ago
Small fix — that is the Scottish pathway. The post is asking about England and the answer is different.
the NHS rule is doing its job and people should stop complaining — with the counter-argument included, because I find it fairly persuasive. Switched pharmacies…
comment on [PSA] batch is not what most of this community thinks it is in c/coa · 22 points · 1 months ago
Pushing back a little: a missing field is usually presentation, not concealment. Ask for the full document before drawing conclusions.
comment on genuine question about area percent that I am slightly embarrassed to ask in c/coa · 36 points · 2 months ago
net peptide content and purity are two different numbers on the same vial
comment on help me understand COA, I have read the wiki twice in c/coa · 36 points · 2 months ago
Ask what the stability statement was written against — temperature, light, and whether it was the lyophilised powder or the reconstituted solution. Those are three different claims.
comment on [Discussion] the pricing advice in here is 2 years out of date in c/glp1uk · 1 points · 2 months ago
GP said no in the spring, specialist said yes eighteen months later. Same person, same numbers.
comment on moderation is the most under-discussed thing on this board in c/meta · -5 points · 3 months ago
this place sells nothing and takes nothing from any supplier
comment on [Lab] QST tirz — Janoshik came back 99.5% against a claimed 99.0% in c/scamalerts · 2 points · 3 months ago
Nearly paid a cloned storefront. Caught it because one character in the domain was wrong and I paste rather than type.
Filing this under things worth writing down: QST tirz — Janoshik came back 99.5% against a claimed 99.0%. Numbers, in the order they matter: 99.5% and 99.0%. Ask for…
comment on does pricing actually matter or is it forum lore at this point in c/glp1uk · 4 points · 3 months ago
GP said no in the spring, specialist said yes eighteen months later. Same person, same numbers.
comment on unpopular opinion: most of what gets said here about UK is guesswork in c/glp1uk · 12 points · 4 months ago
Read the MHRA notice rather than the news coverage and the actual scope was much narrower than the panic threads suggested.
comment on [Lab] 4th independent test on JEEP — 97.3% on a claimed 97.0%, and the trend is the interesting part in c/tirzepatide · 8 points · 4 months ago
Correction to my own post above — I said 7.5mg and I have been on 5mg since the spring.
elin_varga is right that the two molecules are not interchangeable. There is no published conversion and the ones circulating are invented.
comment on [Discussion] can we stop arguing about UK until somebody posts a number in c/glp1uk · 272 points · 4 months ago
Not convinced — the US threads are a different system entirely and importing their advice here does real harm.
comment on [Discussion] we are measuring purity at the wrong time and calling it noise in c/coa · 47 points · 4 months ago
Net peptide content is the fraction of the powder that is actually peptide once counterion, water and residual solvent are accounted for. A 99% pure acetate salt can still be about 85% peptide by mass.
comment on area percent — 13 things I got wrong before I got it right in c/coa · 199 points · 5 months ago
Net peptide content is the fraction of the powder that is actually peptide once counterion, water and residual solvent are accounted for. A 99% pure acetate salt can still be about 85% peptide by mass.
comment on [Discussion] SURPASS is doing more work than we give it credit for in c/tirzepatide · 1 points · 5 months ago
Agreed, and the trial number is a mean of a very wide distribution — the tails are enormous and nobody posts from the middle.
comment on [Discussion] we are measuring cloned site at the wrong time and calling it noise in c/scamalerts · 47 points · 5 months ago
a shop that will only talk off-platform has told you something
comment on tirzepatide — 22 things I got wrong before I got it right in c/tirzepatide · 976 points · 5 months ago
Agreed, with one qualifier: that is the mean of the top arm and the spread around it was enormous.
Saving this one. It is the clearest statement of the stall problem I have read here.
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
Small fix — that is the Scottish pathway. The post is asking about England and the answer is different.
comment on tirzepatide — 22 things I got wrong before I got it right in c/tirzepatide · 830 points · 5 months ago
The distribution matters more than the mean. In the trial population the interquartile spread was wide enough that two honest people can have completely different runs on the same arm.
comment on help me understand PDF metadata, I have read the wiki twice in c/scamalerts · 0 points · 5 months ago
never accuse an individual, describe what happened to you
bianca_demir has the group-buy risk right — it is structural, not a judgement about anybody in particular.