Learn about research peptides
Technical, educational guides without the hype. Information for researchers.
The vial matters too: Type I (borosilicate) glass for peptides
How Type I glass differs from Types II and III under the USP and European Pharmacopoeia, and what to check on a peptide vial when it arrives.
What should you check before buying research retatrutide?
Compare retatrutide per mg with shipping: 10 mg at $1,100 MXN is $128/mg. What 99% HPLC does and does not tell you. Research use only (RUO).
What should you ask for before buying research HGH (somatropin)?
12 IU is about 4 mg: compare HGH per IU and per mg, and see why HPLC alone falls short for a protein. 12 IU vial at $480 MXN. Research use only.
How does a peptide order arrive? Discreet shipping in Mexico
Plain packaging and tracking, 24 to 72 business hours anywhere in Mexico. $180 MXN, free over $2,000. Mexico only. What to check on arrival. RUO.
What should you check before buying research tirzepatide?
Work out price per mg with shipping and why 99% HPLC means little without a chromatogram. 5 mg vial $480 or 10 mg $690 MXN. Research use only.
How to store lyophilized and reconstituted peptides
Lyophilized: sealed at 2-8 °C or -20 °C. Reconstituted: refrigerated, never refrozen. Why no shelf life fits all, and what to do if a vial arrives warm.
How to buy peptides with a verifiable COA in Mexico
How to buy a research peptide with a per-batch COA in Mexico: what to ask for before paying, what to check on arrival, and what to archive. RUO guide.
How to verify a peptide vendor: COA and HPLC checklist
How to verify a research-peptide vendor: what a real per-batch COA must contain, how to read an HPLC chromatogram, how to confirm identity, and the red flags. RUO guide.
Are peptides legal in Mexico? The COFEPRIS and RUO framework
Are peptides legal in Mexico? How Mexican regulation distinguishes a research reagent (RUO) from a medicine (COFEPRIS), how Égida operates within that framework, and what responsibility the buyer holds.
Tirzepatide vs semaglutide: dual or simple GLP-1 agonist
Tirzepatide vs semaglutide: which receptors each molecule activates (GIP and GLP-1 vs GLP-1 only), molecular weight and how each batch is verified by HPLC and COA. RUO guide.
What are BPC-157 and TB-500? Molecular identity and batch verification
What BPC-157 (pentadecapeptide, 15 aa, ~1,419 Da) and TB-500 (synthetic fraction of thymosin beta-4, ~4,921 Da) are: molecular identity, structural differences, and how to verify a batch by HPLC and COA. RUO guide.
What is HGH somatropin? Identity, recombinant origin and verification
Recombinant human growth hormone (somatropin): 191 amino acids, E. coli production, and analytical methods such as HPLC and MS. Research use only.
What is GHK-Cu (copper peptide) and how to verify it
What GHK-Cu (copper peptide) is: the GHK tripeptide, how it binds copper and how a batch is verified by HPLC purity and a per-batch COA. RUO guide.
How to calculate peptide concentration (mg/mL)
How to calculate a research peptide's concentration (mg/mL): the formula, the micrograms per syringe unit and how far the vial goes. Technical RUO guide.
What is kisspeptin and how to verify its quality
What kisspeptin is: a research neuropeptide, its KISS1R (GPR54) receptor, and how a batch is verified by HPLC purity and a per-batch COA. RUO guide.
Comparison: Retatrutide vs Tirzepatide (Triple or Dual Agonist)
Retatrutide vs tirzepatide: which receptors each molecule activates (GIP, GLP-1, glucagon) and how each batch is verified. RUO guide.
Research peptides: what they are and how to verify a batch
Research peptides (RUO) are lab reagents, not medicines. They are verified by HPLC purity, molecular mass and a COA whose batch number matches the vial.
What is tirzepatide and how to verify its quality
Yes, tirzepatide is a peptide: 39 synthetic amino acids, research use only (RUO). What it is and how a batch is verified by HPLC and COA.
Peptide reconstitution: how to reconstitute a lyophilized vial step by step
How to reconstitute a lyophilized peptide: check the batch COA, add bacteriostatic water without shaking, calculate mg/mL. RUO guide with figure.
How to Read a Peptide COA (Certificate of Analysis), Step by Step
RUO guide to reading a research-peptide COA: identity by mass (MS), HPLC purity, batch number and red flags. Step by step.
What is HPLC purity and why does 99% matter?
HPLC purity: it measures the main peak area, not how much peptide is in the vial. Salts and water are not in that figure; identity is confirmed by mass.
Bacteriostatic vs. sterile water for peptides: which to use
When to use bacteriostatic water (with 0.9% benzyl alcohol) vs. sterile water to reconstitute a peptide, and how it changes mg/mL. RUO guide.
Buying research peptides in Mexico: a guide for visitors and expats
Retatrutide $1,100 MXN, HGH $480 MXN as research material (RUO). Delivered to your hotel or Airbnb in Mexico in 24-72 h. Not a clinic.
Technical questions about a compound or a batch?
Message us by email and we reply within business hours with any technical or handling question. For orders, add to cart above.
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