Blog
Daily evidence-led peptide research, regulatory news, expert digest and explainers. Every claim sourced; no AI tells.
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Peptides for longevity: a primer
Tesamorelin and ipamorelin are discussed for longevity. Here is what the evidence and safety picture actually look like.
Peptides for muscle gain: evidence
Ipamorelin and CJC-1295 raise growth hormone signals, but no controlled human trial shows either peptide builds muscle or strength.
Peptides for sexual function
PT-141 has phase 3 evidence and one narrow US approval, but the evidence does not support every libido or erectile-function claim made online.
Combining Selank with BPC-157 and TB-500
Selank targets anxiety via enkephalinase inhibition. BPC-157 and TB-500 are tissue-repair peptides. Here is what the literature says about combining them.
Tirzepatide vials: what the label says
Mounjaro and Zepbound use single-dose vials. Pooling drug between vials is not described in either label. Here is what the prescribing information says.
When retatrutide feels like it wore off
Day-to-day appetite is not a retatrutide dose meter. Trials used once-weekly dosing and planned escalation, not symptom-led midweek changes.
ACTH-fragment nootropics: what we know
Semax, Org 2766 and ACTH(4-10) itself come from one hormone. Here is what the class evidence shows in humans, and where it runs out.
Can I buy tirzepatide online legally?
Tirzepatide is prescription-only in the EU, UK and US, so a legal online purchase means a licensed pharmacy dispensing against a valid prescription.
Peptides for cognitive performance
No peptide has a controlled human trial showing cognitive enhancement in healthy adults. Here is what the Semax and Cerebrolysin record actually shows.
Thymosin peptides: what the class is
Thymosin alpha-1 and thymosin beta-4 share a name, not a structure. TB-500 is a fragment of one of them. BPC-157 is not a thymosin at all.
Does tirzepatide cause muscle loss?
Tirzepatide causes some lean mass loss. DXA data from SURMOUNT-1 show roughly 75% of weight lost is fat and 25% is lean mass.
Tirzepatide pregnancy: what the label says
The Mounjaro prescribing label flags insufficient human data and animal fetal harm. Here is what the label, animal studies, and early cohort data say.