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c/researchpeptides·posted 8 days ago by u/chidi_yilmaz

[Explainer] evidence levels: in vitro, rodent, human. say which one you mean.

Explainer Sourced ×7

Trying to settle this properly because the thread from last year went in circles.

The claim: thymosin matters. The counter-claim: it is measurement error. Both sides have been asserting it confidently for about 3 months without either producing anything.

What would actually settle it is 23 people measuring the same thing the same way. I have started; my numbers are below. They lean one way but not strongly enough for me to declare victory.

If you have data, post the data. If you have an opinion, flair it as an opinion.

2,795 up / 2,391 down54% upvoted27 commentsid 18vy0422 Jul 2026

27 comments

21 in this archive, depth 5

best — the order this archive was captured in

u/rui_only_ro36 points·8 days ago

The thing nobody prepared me for was the quiet. Not the appetite, the quiet. The constant negotiation in my head about food just stopped.

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u/reverse_image_ron24 points·7 days ago

the research peptides literature is thin on humans

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[deleted]17 points·7 days ago

[deleted]

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u/chidi_yilmazOP-3 points·7 days ago

Which country? Half the answers in this thread only apply in Germany.

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u/osman_ferrari1 point·7 days ago

Which country?

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

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u/due_diligence_dee1 point·7 days ago

focus on identity verification, handling, evidence state

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u/chidi_yilmazOP1 point·6 days ago

purity and identity are two questions

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u/chidi_yilmazOP23 points·7 days ago

Stalled for 23 weeks, changed nothing, and it started moving again on week 23.

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u/ahmed_fonseca27 points·6 days ago

the thymosin literature is thin on humans

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u/long_post_larry18 points·6 days ago

Strongly agree. Evidence level matters.

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u/ignacio_roos10 points·6 days ago

Did anything else change in the same window?

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u/greta_lokken11 points·6 days ago

name the compound precisely, TB-500 and Thymosin Beta-4 are not the same

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u/elin_varga8 points·6 days ago

Sceptical. If this were true we would see it reflected in the data and we do not.

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u/throwaway_wl20269 points·6 days ago

name the compound precisely, TB-500 and Thymosin Beta-4 are not the same

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u/wrong_network_w5 points·5 days ago

Yeah, identity is the first question.

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u/ledger_modmod · vetting8 points·6 days ago

supply-chain naming is a mess, ask for HPLC

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u/sigrid_kaufmann17 points·7 days ago·edited
okay but what dose
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u/phase_two_pete13 points·6 days ago

Strongly agree. Evidence level matters.

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u/rui_only_roMOD8 points·7 days ago

Tracking number removed. It identifies both ends of a shipment.

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u/georgi_adebayo4 points·7 days ago

How many weeks between the two measurements?

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u/ahmed_cardoso1 point·7 days ago

not approved for human use, full stop

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About c/researchpeptides

The wider research-peptide catalogue: thymosin fragments, GH secretagogues, melanocortin agonists, and the long tail of three-letter analogs. Focus on identity verification, handling and the state of the evidence — not on protocols, because these are not approved for human use.

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