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259
c/coldchain·posted 2 months ago by u/nils_ferreira

am I the only one who found stability harder than the injections

Discussion

Confession thread, sort of.

I went from 1.0mg to 15mg much faster than I should have because the scale had stalled and I got impatient. The stall broke about 11 weeks later, at which point I had no way of knowing whether the dose increase did anything or whether it would have broken anyway.

So now I have sulphur burps I did not need and a data point I cannot interpret. Two lessons in one.

Posting it in the hope that somebody at week 94 reads it before doing the same thing.

398 up / 139 down74% upvoted27 commentsid 1v5r6v17 May 2026

27 comments

19 in this archive, depth 6

best — the order this archive was captured in

u/amara_dziedzic34 points·2 months ago·edited

customs clearance often breaks the cold chain, factor that in

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u/phase_two_pete-15 points·2 months ago

excursion claims need a logger trace or a photo at unboxing, not "it felt warm"

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u/nightowl_injector1 point·2 months ago

gel packs last 16 hours, after that you are relying on the box itself

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u/priya_weiss1 point·2 months ago

Yeah, data logger is the only acceptable proof.

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[removed]1 point·2 months ago

[removed by moderator]

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u/andres_restrepo1 point·2 months ago

Edit to your parent would help — the concentration you quoted assumes one scenario and you have written another above it.

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u/ines_lindqvist1 point·2 months ago

a warm courier van is a bigger problem for a mixed vial than for dry powder

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u/asks_dumb_questions18 points·2 months ago

excursion claims need a logger trace or a photo at unboxing, not "it felt warm"

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u/ice_pack_auditMOD13 points·2 months ago

Removed a chain here. The rule is one line long and it is not negotiable.

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u/chidi_yilmaz10 points·2 months ago

Which carrier and route?

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u/ms_fragmenter12 points·2 months ago

no tracking numbers, no full addresses, no label photos — instant removal

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u/ireland_drugs_pay8 points·2 months ago

no tracking numbers, no full addresses, no label photos — instant removal

Counter-anecdote: opposite result, same dose. Which mostly tells us the variance is huge.

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u/nils_ferreiraOP6 points·2 months ago

data logger is the standard, gut feeling is not

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u/priya_ogunleye7 points·2 months ago

gel packs last 2 hours, after that you are relying on the box itself

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u/tomas_lokken4 points·2 months ago

Not to be pedantic but packaging and lyophilised are being used interchangeably and they are not interchangeable in real life.

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u/anders_karlsen3 points·2 months ago

Peak temperature and how long at that temperature?

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u/preservative_free_p4 points·2 months ago

gel packs last 20 hours, after that you are relying on the box itself

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u/bruno_dumitru12 points·2 months ago

Yeah, data logger is the only acceptable proof.

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u/andres_restrepo9 points·2 months ago

The gel pack lasted 19 hours in a courier van, then liquid. Powder itself fine, the cold chain mostly died in transit.

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About c/coldchain

Temperature and stability in the real world: what an excursion actually costs you, why lyophilised powder is far more forgiving than reconstituted solution, how to read a logger CSV, and how to photograph a failed shipment so the conversation with the vendor is short.

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c/coldchain rules
  1. Excursion claims need a logger trace or a photo taken at unboxing. "It felt warm" is not data.
  2. No tracking numbers, ever. They identify you and the recipient.
  3. Stability claims need a source or an explicit "this is my guess" label.
  4. Independent community. Nobody here sells anything, and anyone who tries is banned.
  5. Not medical advice. Describe what you did; never prescribe to a stranger.
  6. Claims need evidence. Batch numbers, dated screenshots, independent test reports, or a citation.
  7. No referral links, discount codes or affiliate URLs. Permanent ban, no appeal.
  8. No contact handles, wallet addresses or tracking numbers — they identify people.
  9. Be recognisably decent. Disagree hard, insult nobody.
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