Articles & guides — page 7

127 cited, vendor-independent pieces on the questions people actually ask — reconstitution and handling, half-lives, compound comparisons, and how to track a protocol. Research and education only; never dosing advice, never sourcing.

127 articles

Half-life & pharmacology2 min

What are GLP-1 receptor agonists?

GLP-1 receptor agonists explained: what the incretin hormone GLP-1 does, what "agonist" means, and how modern versions are engineered to last for days.

Approved medicine
Half-life & pharmacology2 min

What are growth hormone secretagogues?

Growth-hormone secretagogues explained: the two receptor families (GHRH analogs and ghrelin/GHS agonists), why they are paired, and where each compound fits.

Concept / method
Compound overviews4 min

What is TB-500?

TB-500 explained with the literature: how this thymosin β4 fragment sequesters actin to drive cell migration, and the crucial catch — the human trials tested eye drops, not muscle injections.

Preclinical
Compound overviews4 min

What is ipamorelin?

Ipamorelin explained with the literature: a five-amino-acid peptide that triggers a pulse of your own growth hormone, why "selective" is its whole story, and an honest look at a mostly preclinical evidence base.

Preclinical
Compound overviews4 min

What is CJC-1295?

CJC-1295 explained with the human data: a GHRH analog, the crucial DAC vs no-DAC fork, and the 2006 trial that measured a 6–8 day half-life and days-long IGF-1 rises in healthy adults.

Human clinical data
Compound overviews3 min

What is semaglutide?

Semaglutide explained plainly: how this GLP-1 medication mimics a gut hormone, what the big human trials actually showed (STEP 1: ~15% weight loss), and the brands it sells under.

Approved medicine
Compound overviews3 min

What is tirzepatide?

Tirzepatide explained plainly: the "twincretin" that hits two gut-hormone receptors, why it is called imbalanced, and what SURMOUNT-1 showed (up to ~21% weight loss).

Approved medicine
Compound overviews3 min

What is HCG?

HCG explained: human chorionic gonadotropin, why it acts like luteinizing hormone, why it is dosed in International Units instead of milligrams, and its TRT-adjacent research context.

Approved medicine
Compound overviews3 min

What is anastrozole?

Anastrozole explained: an aromatase inhibitor that blocks testosterone-to-estrogen conversion, its ~50-hour half-life from the FDA label, and its TRT-adjacent research context. Education only.

Approved medicine
Compound overviews3 min

What is testosterone cypionate?

Testosterone cypionate explained: plain testosterone plus an ester that controls its release, why that stretches the half-life to about 8 days, and how it compares to enanthate.

Approved medicine
Compound overviews3 min

What are research peptides?

A plain-language primer on research peptides: what a peptide actually is, what "research compound" honestly means, the main families, and how to read the wildly different evidence behind each.

Concept / method
Compound overviews5 min

What is GHK-Cu (copper peptide)?

GHK-Cu explained with the literature: the copper tripeptide Pickart discovered in 1973, what cell and topical-skin studies show for collagen and wound healing, and why injectable evidence is thin.

Preclinical

Zyra Track is a research and educational utility. Nothing on this page is medical advice, a dosing recommendation, or an endorsement of any compound. We never sell or source compounds and refuse sourcing questions. Consult a qualified clinician for decisions about your health.