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Articles

Research, guides and straight answers.

Deep-dives, comparisons and how-tos on the compounds we carry, written straight, no hype, and grounded in the clinical literature.

21 articles

Foundations

Start here - the fundamentals.

Foundations

Peptide Stacking 101: What Works Together (and What Does Not)

A straight-talking guide to peptide stacking: which combinations have complementary mechanisms, which pairings are redundant, and what to avoid.

v1.3 · 15 min read
Foundations

The Future of Peptides: Where the Field Is Actually Heading

Where peptides are actually going: the GLP-1 supercycle, brain repair, longevity bioregulators, smarter delivery, and where the hype runs ahead of the data.

v1.2 · 9 min read
Foundations

What Are Peptides? A Complete Beginner's Guide

A plain-English guide to what peptides actually are, how they work, the main categories, and the honest reality of research peptides for beginners.

v1.5 · 16 min read

Quality & Safety

COAs, reconstitution, doing it right.

Quality & Safety

How to Read a Peptide COA: What Actually Matters

A plain-English guide to peptide COAs: the tests that matter, who Janoshik are and why they are the gold standard, and the one thing no COA can ever prove.

v1.4 · 18 min read
Quality & Safety

How to Reconstitute, Store and Inject Peptides Safely

A step-by-step guide to reconstituting peptides with BAC water, the dose maths on an insulin syringe, safe storage and subcutaneous injection technique.

v1.6 · 17 min read

Bali & Indonesia

Local context, honestly.

Bali & Indonesia

Where to Buy Peptides in Bali (and How to Spot a Reliable Source)

An honest guide to buying research peptides in Bali: what actually makes a source reliable, why local beats an overseas parcel, and the red flags to watch. Research-use-only.

v1.1 · 6 min read
Bali & Indonesia

Are Peptides Legal in Indonesia and Bali?

An honest, research-use guide to peptide legal status in Indonesia and Bali, controlled-substance distinctions and how the local supply works. Not legal advice.

v1.3 · 10 min read

Weight Loss

GLP-1s and the fat-loss compounds.

Weight Loss

Tirzepatide: The Dual GIP/GLP-1 Deep-Dive

A straight-talking, data-led deep-dive on tirzepatide: the SURMOUNT numbers, dosing and microdosing, side effects, and where it fits next to retatrutide.

v1.3 · 17 min read
Weight Loss

Retatrutide vs Tirzepatide vs Semaglutide: Which GLP-1 Is Right For You?

A straight-talking, data-led comparison of the three leading GLP-1 weight-loss compounds, and why the Phase 3 evidence puts retatrutide out front.

v1.4 · 14 min read
Weight Loss

Retatrutide: The Triple Agonist Deep-Dive

What retatrutide is, the Phase 2 and Phase 3 data, dosing, side effects and honest caveats on the strongest weight-loss peptide in development.

v1.4 · 18 min read
Weight Loss

Fat-Loss Peptides Beyond GLP-1s: The Metabolic Compounds, Honestly Ranked

The non-GLP-1 metabolic fat-loss compounds (5-Amino-1MQ, SLU-PP-332, L-carnitine and more), how they differ from GLP-1s, and why they are a cleaner, more targeted class than clen, T3 and DNP.

v1.2 · 14 min read

Healing & Recovery

Repair, recovery and the blends.

Healing & Recovery

GLOW and KLOW Blends: Why They Work, and the Myths Debunked

How GLOW and KLOW healing peptide blends work, GLOW vs KLOW, and the common myths about blends debunked with the actual data.

v1.2 · 17 min read
Healing & Recovery

BPC-157 vs TB-500: Local vs Systemic Healing

A straight comparison of the two best-known healing peptides: how BPC-157 and TB-500 differ, what the research actually supports, and why most people run both.

v1.2 · 11 min read
Healing & Recovery

BPC-157 Benefits: The Most-Studied Healing Peptide

A straight-talking, data-led guide to BPC-157: what it does for tendons and gut, real dosing, cycling, and the honest safety picture.

v1.3 · 16 min read

Growth Hormone

The GH axis and secretagogues.

Growth Hormone

GH Secretagogues Explained: The Differences and How to Combine Them

GHRH analogs vs GHRPs, how the two families differ, why a GHRH plus a GHRP is synergistic, and which GH peptides you should not double up.

v1.2 · 16 min read
Growth Hormone

CJC-1295 + Ipamorelin: The Clean GH Stack Explained

Why CJC-1295 and ipamorelin are run together, how the synergy works, real dosing, DAC vs no-DAC, side effects, and who the stack is for.

v1.2 · 17 min read

Longevity

Telomeres, NAD+ and the anti-aging stacks.

Longevity

MOTS-c: Benefits, the Energy Paradox, and How to Run It Right

What MOTS-c actually does, why some people get LESS energy on it, and how NAD+ and SS-31 lay the foundation so it works. Honest and data-backed.

v1.2 · 13 min read
Longevity

Longevity Peptide Stacks: How the Anti-Aging Compounds Work Together

How the anti-aging peptides fit together: telomeres, NAD+ fuel, the MOTS-c signal, SS-31 protection and GHK-Cu repair. Foundation-first, honestly framed.

v1.2 · 19 min read
Longevity

Epitalon: Telomeres, Sleep and the Anti-Aging Flagship

What Epitalon actually does for telomeres, sleep and circadian rhythm, with the evidence told straight: real mechanism, older Russian data, honest dosing.

v1.2 · 20 min read

Cognitive

Focus, mood and the brain-repair peptides.

Cognitive

Nootropic Peptides: Semax, Selank and the Brain-Repair Compounds

A straight guide to the brain peptides: what Semax, Selank, Pinealon and Cerebrolysin do, how they differ, the honest evidence, and how people run them.

v1.2 · 13 min read

Skin & Hair

Regeneration, copper peptides, aging.

Skin & Hair

GHK-Cu Benefits: The Copper Peptide for Skin, Hair and Repair

A straight-talking, data-led guide to GHK-Cu copper peptide: the gene-modulation story, skin and hair benefits, topical vs injectable, dosing and safety.

v1.3 · 17 min read

FAQ

Common questions.

Our products are supplied strictly for research use only. We don't provide legal or medical advice, and you're responsible for compliance with the rules that apply to you. If you're unsure, do your own research before ordering.

Primogen is operated by CV PRIMOGEN, a properly registered Indonesian company, 100% Indonesian owned and based in Bali. Bank transfers go to the company account, not somebody's personal one.

No. Everything we sell is for research use only, not as a medicine, so there's no prescription involved. We don't make medical claims or give medical advice.

Those are prescription medicines, manufactured and regulated as drugs. We supply research peptides for research use, not medicines. We make no therapeutic claims, and nothing here is a substitute for medical care.

Lyophilised (freeze-dried) peptides hold up for a while at room temperature, but heat is the enemy over time. Once reconstituted, keep them refrigerated at 2 to 8°C. We deliver everything cold and include a short storage and reconstitution guide so it's clear.

Yes. Vials arrive freeze-dried for you to mix yourself, which is straightforward and free. If you'd rather not, switch on our reconstitution service and we'll make it up to spec, ready to use, for Rp 100.000 per vial. We can fill pens and cartridges for you too.

Yes, free with every order. We include a 3ml allowance of bacteriostatic water per vial you buy, made up from a mix of our 3ml and 10ml vials so it covers your whole order. Use as much or as little per vial as your protocol needs. Extra is available if you want it.

Message us. We pack every order cold and track it on the way, and if something goes wrong in transit we'll sort it, replacement or re-ship. We don't take your order and disappear.

There's no online checkout. Add what you want to your order, then tap Send Order, it opens WhatsApp pre-filled with your items. We confirm stock and dosing, then arrange payment and delivery directly with you. We take local bank transfer or crypto (USDC, USDT, or BTC), and cash on delivery in the areas our own drivers cover.

By bike courier across South Bali, packed cold. Free around the immediate Canggu area; a small fee further out through the Seminyak-to-Ubud belt (Rp 50.000) or down to Uluwatu (Rp 75.000), waived on larger orders. East and North Bali and the Nusa islands are quoted by distance. Order before 12pm (midday) for same-day in the closer zones. Full zones and fees are on the How to Order page.

Yes. Pens, bacteriostatic water and cartridges can go in the same order, and we'll help with reconstitution and dosing so you arrive ready to start.

Where our suppliers provide a Certificate of Analysis, we share it on request. We're working toward our own independent third-party testing, and we'll always tell you exactly what we have for the batch you receive. We won't claim something is lab-verified when it isn't.