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c/coldchain·posted 1 year ago by u/noor_cardoso

[PSA] packaging is not what most of this community thinks it is

PSA Slow Clap ×7

Week 63 update. 34kg down from the start, reflux basically gone since about week 8.

Things that worked: consistency, protein at breakfast, walking more than I want to. Things that did not: everything I bought on the internet to help with reflux.

The part that surprised me is how much of this is admin. Ordering, storing, logging, remembering. Nobody mentions that the hard bit is not the drug, it is the routine.

Happy to answer anything. Please do not ask me what dose you should be on.

1,049 up / 403 down72% upvoted30 commentsid of3s1f7 May 2025

30 comments

23 in this archive, depth 5

best — the order this archive was captured in

u/sten_palacios146 points·1 year ago

The gel pack lasted 12 hours in a courier van, then liquid. Powder itself fine, the cold chain mostly died in transit.

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u/certified_referenceQC111 points·1 year ago

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

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[deleted]78 points·1 year ago

[deleted]

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u/rohan_steiner-26 points·1 year ago

stability after excursion is not zero, it is dose-dependent

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u/india_generic_g1 point·1 year ago

stability after excursion is not zero, it is dose-dependent

Disagree on that part. 93.7% and 99.3% on the same vial is normal.

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u/coldchain_karenMOD56 points·1 year ago

This is an urgent-care question wearing a forum question's clothes. Please contact a clinician rather than waiting for replies.

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u/iman_castellanos17 points·1 year ago

Strongly agree. Peak temperature is not the whole story.

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u/tidy_vialdrawer_watch28102 points·1 year ago

Yeah, data logger is the only acceptable proof.

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u/kian_ekstrom83 points·1 year ago·edited

France to France: 19 days with ERP and 3 days with QSC. Same route, different carriers, variance is real.

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u/nikhil_asante49 points·1 year ago

lyophilised powder is far more forgiving than reconstituted solution

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u/ines_lindqvist67 points·1 year ago

The gel pack lasted 3 hours in a courier van, then liquid. Powder itself fine, the cold chain mostly died in transit.

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u/chidi_abubakar45 points·1 year ago

This is correct. Dry powder is way more robust than liquid.

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u/coldchain_karencold chain35 points·1 year ago

gel packs last 22 hours, after that you are relying on the box itself

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u/search_before_post11 points·1 year ago·edited

time-at-temperature integral is the dose, not just peak temperature

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u/nayeli_iyer7 points·1 year ago

Which carrier and route?

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u/noor_cardosoOP26 points·1 year ago

Logger trace from my shipment: 3 hours at 29°C. Powder tested 94.2% against 98.4% claim. Tolerates more than the box implies.

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u/priya_weiss18 points·1 year ago

Which carrier and route?

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u/hamza_weiss12 points·1 year ago

customs clearance often breaks the cold chain, factor that in

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u/creatine_and_cardio14 points·1 year ago

lyophilised powder is far more forgiving than reconstituted solution

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u/bence_ibarra7 points·1 year ago

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

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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.
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  5. Not medical advice. Describe what you did; never prescribe to a stranger.
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