Compound profiles, storage protocols, COA verification guidance and UK regulatory context.

Research blog

Compound profiles, storage protocols, COA verification guidance and UK regulatory context.

Research

Compound profiles, storage and reconstitution protocols, HPLC and COA verification guidance, and UK regulatory context for research peptides.

Peptide quantities and research use: what the units mean — 28 Sep 2026
Understand the difference between peptide vial mass, liquid volume, laboratory concentration and a human dose. A research-literacy guide without dosing instructions.
GHK-Cu research use only: why a vial label is not an instruction — 28 Sep 2026
What the quantity on a GHK-Cu 50 mg or 100 mg research vial does and does not tell you, how research-only labelling works, and what cell-study evidence can and cannot show.
Peptide Calculator Guide: How to Work Out Concentration, Mass and Volume for Lyophilised Peptides — 30 Sep 2026
How a peptide calculator actually works, and how to do the same maths by hand: mass in the vial, solvent volume, the mg/mL you get, converting to µg/µL and molarity, working backwards from a target concentration to the volume of solvent to add, dilution series, and the mistakes that make two calculators give different answers. Written for laboratory preparation of research peptides.
Where to Buy Peptides in the UK: How to Choose a Research Peptide Supplier — 30 Sep 2026
Looking for where to buy peptides in the UK? A practical guide to choosing a research peptide supplier: UK stock, certificates of analysis, HPLC purity, lawful presentation, pricing, delivery and the red flags that mean walk away.
BPC-157 Peptide: What It Is and What the Research Shows — 18 Apr 2026
What BPC-157 is: the 15-amino-acid peptide GEPPPGKPADDAGLV, the cytoprotective and angiogenic pathways it is studied in, and what in-vitro research shows.
TB-500 Peptide (Thymosin Beta-4): What the Research Shows — 12 Apr 2026
TB-500 is the active LKKTETQ fragment of Thymosin Beta-4. What its actin-binding function is, and the in-vitro cell-migration research the fragment appears in.
GHK-Cu Copper Peptide: What the Research Shows — 08 Apr 2026
GHK-Cu, the copper-binding tripeptide: what in-vitro research shows about its effects on gene expression and extracellular-matrix remodelling in cell models.
How to Read a Peptide COA: HPLC Purity, Mass Spec Identity and What a Fake One Looks Like — 30 Sep 2026
A certificate of analysis is the only evidence that a research peptide is what the label says. How to read the HPLC chromatogram, how the purity percentage is calculated, why retention time is not identity, what the mass spectrometry section must show, net peptide content, endotoxin and sterility lines, and the red flags of a fabricated report.
How to Store Peptides: Lyophilised and Reconstituted Storage, Shelf Life and Freeze-Thaw Explained — 30 Sep 2026
How long peptides last and how to store them: why lyophilised powder is stable and solution is not, the temperatures that matter, the 28-day convention for preserved stocks, freeze-thaw damage and aliquoting, light and oxidation, what a fridge and a frost-free freezer do wrong, and a receiving-to-disposal checklist for UK laboratories.
Are Peptides Legal in the UK? Buying, Selling and Research Use Explained — 30 Sep 2026
Are peptides legal in the UK? Plain-English guide to the Human Medicines Regulations, what "research use only" means in law, which peptides are controlled drugs, customs, and how to tell a lawful supplier from a rogue one. Not legal advice.
Peptide Reconstitution Guide: How Lyophilised Peptides Are Reconstituted in the Laboratory — 30 Sep 2026
How to reconstitute a lyophilised peptide for in-vitro research: what the powder is, which solvent to use and why, the aseptic bench technique, the concentration arithmetic with worked examples, dilution for assays, storage of the stock, and the mistakes that ruin an experiment.
Epithalon Peptide (AEDG): Telomerase and Telomere Research — 14 Mar 2026
Epithalon (AEDG), the synthetic tetrapeptide Ala-Glu-Asp-Gly: what in-vitro and animal research examines about telomerase (hTERT) and telomere biology.
Fake Peptides UK: How Counterfeit and Substituted Research Peptides Get Sold, and How to Spot Them — 30 Sep 2026
Underdosed vials, substituted compounds, recycled certificates and relabelled crude peptide: how counterfeit research peptides reach UK buyers, what the analytical evidence shows, the red flags on a website and a COA, what to check when a parcel arrives, and what to do if you have been sold a fake.
Selank Peptide: What In-Vitro Research Shows — 06 Mar 2026
Selank (TKPRPGP), a synthetic tuftsin analogue: its GABA and BDNF research profile in preclinical models. In-vitro laboratory research framing only.
Peptide Degradation: What Causes It and How to Reduce It — 19 Feb 2026
What degrades peptides — hydrolysis, oxidation, deamidation, aggregation and racemisation — and evidence-based ways to prevent each in the laboratory.
Blended Peptide Vials: Sound Science or Just Marketing? — 14 Feb 2026
Are blended peptide vials sound science or just marketing? The chemical-stability trade-offs of pre-mixed blends versus single-compound vials.
CJC-1295 and Ipamorelin: In-Vitro Receptor Research — 08 Feb 2026
CJC-1295 (no DAC) and Ipamorelin: their distinct GH-secretagogue receptor pathways, and why the two peptides are studied together in vitro.
AOD-9604 Peptide: In-Vitro Fragment Research — 02 Feb 2026
AOD-9604, the modified hGH fragment 177-191: how it is used as an in-vitro tool compound to study growth-hormone structure-function. Research use only.
Semax Peptide (ACTH 4-10 Fragment): Research Overview — 27 Jan 2026
Semax (MEHFPGP), the synthetic ACTH(4-10) fragment: what preclinical research examines about BDNF and monoamine signalling in model systems.
Bacteriostatic Water UK: What It Is, Where to Buy It and How Long It Lasts — 30 Sep 2026
Bacteriostatic water in the UK explained: what the 0.9% benzyl alcohol does, how it differs from sterile water and saline, why it lasts 28 days after opening, where you can and cannot buy it in the UK, and how laboratories use it to reconstitute lyophilised peptides.
Third-Party Peptide Testing: Why Independent Labs Matter — 16 Jan 2026
Why independent third-party peptide testing matters, what ISO 17025 accreditation means, and what a genuine batch-specific COA actually contains.
Importing Research Peptides into the UK: What a Laboratory Importer Needs to Know — 30 Sep 2026
For laboratories and businesses importing research peptides into the UK: how medicines law applies at the border, what an importer needs (EORI, commodity code, invoice, safety data), duty and VAT including the £135 threshold, what a seizure notice means and the one-month deadline, Northern Ireland, and why UK stock avoids the whole question.
Peptide Purity: What Does 99% Actually Mean? — 04 Jan 2026
Peptide purity explained: crude vs desalted vs HPLC-purified, how the percentage is calculated under USP 〈621〉, and how pure a research peptide needs to be.
Vivera Labs Only Sells Direct: We Are Not on Any Third-Party Platform — 28 Dec 2025
An important notice regarding unauthorised resellers. Vivera Labs does not sell through any third-party marketplace. If you did not purchase directly from viveralabs.com, your product is not from us.
Solid-Phase Peptide Synthesis (SPPS): How Peptides Are Made — 14 Dec 2025
How research peptides are made: Fmoc solid-phase peptide synthesis (SPPS) from resin loading through cleavage to HPLC purification, explained step by step.
Peptide vs Protein: Understanding the Key Differences — 30 Jul 2026
Explore the fundamental differences between peptides and proteins, focusing on chain length, structure, and laboratory study areas.
What Is a Peptide Bond: Amide Linkage and Its Formation — 3 Aug 2026
Explore the molecular structure and formation of peptide bonds, crucial in protein synthesis and studied in laboratory models.
Understanding Peptide Half-Life: Stability, Degradation, and Laboratory Insights — 6 Aug 2026
Explore how peptide half-life is influenced by proteases like DPP-IV and stabilization strategies in laboratory research.
Understanding Peptide Net Charge and Isoelectric Point (pI) — 13 Aug 2026
Explore how peptide net charge and isoelectric point (pI) influence solubility, with insights into calculation methods and laboratory applications.
Kisspeptin: Molecular Class and KISS1R Receptor Biology Studied In Vitro — 17 Aug 2026
Explore the in-vitro research on Kisspeptin-10, its molecular structure, and its interaction with the KISS1R receptor.
MOTS-c: Mitochondrial-Derived Peptide and Its Role in Cell-Signalling Pathways — 20 Aug 2026
Explore the structure and in vitro research of MOTS-c, a mitochondrial-derived peptide involved in cellular signalling pathways.
Peptide Solubility: Charge, Hydrophobicity, Choosing a Solvent — 27 Aug 2026
Explore the intricate factors influencing peptide solubility, including charge, hydrophobicity, and solvent selection in laboratory research.

For in-vitro laboratory research use only. Not for human or veterinary use, consumption, or therapeutic application. No medical claims are made.

Topical skincare

Guides to the peptides in our topical range — what each ingredient is and what the research on it actually found. Cosmetic products, not research compounds.

Peptide Eye Cream for Dark Circles: Benefits Explained — 27 Jul 2026
Discover how peptide eye cream can reduce dark circles and enhance skin firmness. Learn about Vivera Labs' scientifically backed Peptide Eye Gel-Cream.
Peptides in Skincare: What They Are and What the Research Shows — 20 Jul 2026
Peptides in skincare, explained plainly: what they are, the skin-penetration problem that limits them, and what the published research actually found.
Peptides for Hair: What the Topical Research Shows — 16 Jul 2026
Peptides for hair: what the topical, applied-to-skin research on IGF-1 and copper peptides actually found — and what is still animal or lab-stage.
Does GHK-Cu Help Skin? What the Research Actually Shows — 16 Jul 2026
Does GHK-Cu help skin? What the collagen and fibroblast studies on copper tripeptide-1 found — and what is still lab-stage, not proven in clinical trials.
What Is PDRN? The Skincare Ingredient, Explained — 23 Jul 2026
What PDRN is, what a topical PDRN serum can do for the look of skin, and how the cosmetic ingredient differs from the in-clinic injectable of the same name.
Peptide Hair Serums: What They Are and What to Look For — 23 Jul 2026
What peptide hair serums are, the peptides you’ll see on the label, and how to read one honestly — including where cosmetic hair care ends and medical hair-loss treatment begins.
The Science Behind Cosmetic Peptide Formulations: Delivery, Concentration, and INCI — 31 Aug 2026
Explore how cosmetic peptides are meticulously formulated for effective topical applications, from delivery systems to concentration and INCI naming.

Cosmetic product for external application to the skin. Not a medicine; no therapeutic claims are made. Not for ingestion, inhalation or injection. Patch test before first use.