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Somatropin
HGH (Somatropin) 3×36 IU
Peptology Ltd. · Recovery and anabolic peptides
HGH (Somatropin) is a recombinant human growth hormone (191 amino acids) that Peptology supplies strictly for laboratory research, in 3×36 IU. You can buy HGH in Cyprus online from €139.00, with same-day dispatch for orders placed by 15:00. 99%+ purity, HPLC/MS certificate for every batch, so every vial comes with documented quality data. Delivery in 5–7 working days with BOX NOW, free from €50; you pay on delivery – by card through the BOX NOW payment link, before you open the locker. The product is not intended for human or veterinary use.
139,00 € · In stock
For research use only / Not a medicine
| Purity | >99% |
|---|---|
| Method | HPLC + LC/MS |
| Laboratory | Analiza Białek |
| Batch | 0226 |
Last updated: 23/07/2026
What is HGH?
Somatropin (Somatropin, recombinant human growth hormone, rHGH, HGH) is a 191-amino-acid protein that reproduces exactly the sequence of the human growth hormone secreted naturally by the pituitary. Unlike GHRH analogues or GHRPs, which stimulate the production of GH, somatropin is growth hormone itself.
It acts throughout the body via GH receptors and mainly via IGF-1 (produced in the liver), affecting growth, body composition, metabolism and tissue regeneration.
It is studied for anabolic action, fat reduction, regeneration and cellular repair. It works one level “lower” than molecules such as Sermorelin or Ipamorelin — bypassing the pituitary. See the range in the category all products.
In the Peptology version, it is supplied as a lyophilised research-grade powder, in a pack of 3 pieces × 36 IU (total 108 IU ≈ 36 mg). It is intended exclusively for scientific, research and in vitro applications — it is not a medicine in this form and is prohibited in sport (WADA).
Available format: 3 × 36 IU (total 108 IU)
3 × 36 IU (TOTAL ≈ 36 MG)
Pack of 3
Three vials of 36 IU each — 108 IU in total, for extended or multiple protocols.
STRUCTURE
191 amino acids
Sequence identical to natural human growth hormone.
Each vial is 36 IU (≈ 12 mg); the pack contains 3 vials, i.e. 108 IU (≈ 36 mg) in total. The ratio is approximately 3 IU per mg.
How Somatropin acts — directly GH → IGF-1
GH RECEPTOR
Binds directly to growth hormone receptors in tissues throughout the body — without depending on the pituitary.
IGF-1 PRODUCTION
Stimulates the liver to produce IGF-1, the main mediator of the anabolic and regenerative actions.
METABOLISM
Promotes lipolysis, protein synthesis and tissue repair — the classic actions of growth hormone.
Direct hormone vs. indirect stimulation
The critical difference from GHRH analogues (Sermorelin, CJC-1295) and GHRPs (Ipamorelin) is that somatropin bypasses the natural regulation: it supplies the hormone steadily, exogenously, instead of pushing the pituitary to produce it.
This gives a stronger and more predictable result, but suppresses the natural negative feedback mechanism (the pituitary “senses” high GH and reduces its own secretion). It is the key point of differentiation between the “direct” and the “indirect” approach to the GH axis. The mechanisms come from clinical and preclinical studies.
Properties and pharmacology
- Class: recombinant human growth hormone (191-amino-acid protein)
- Target: GH receptors throughout the body; IGF-1 as mediator
- Position in the axis: the hormone itself (below pituitary/GHRH)
- Actions: anabolic, lipolysis, repair, metabolism
- Difference: bypasses natural regulation (feedback suppression)
- Status: research product here; prohibited in sport (WADA)
Somatropin vs. Sermorelin vs. Ipamorelin
Three approaches to the growth hormone axis at different levels. Reference data.
| Somatropin | Sermorelin | Ipamorelin | |
|---|---|---|---|
| What it is | GH itself | GHRH analogue | GHRP (secretagogue) |
| Mechanism | Direct GH administration | Stimulates the pituitary | Stimulates the pituitary |
| Natural feedback | Suppressed | Preserved | Preserved |
| Action profile | Strong / predictable | Physiological / pulsatile | Physiological / pulsatile |
| Status | Research (WADA-prohibited) | Research (WADA-prohibited) | Research (WADA-prohibited) |
Sources: literature on human growth hormone and the molecules of the GH axis.
Research
Body composition and metabolism
Human growth hormone is among the best-documented molecules in the regulation of body composition: it promotes lipolysis and protein synthesis, with effects on muscle and fat mass.
Regeneration and IGF-1
Through the increase in IGF-1, GH takes part in tissue repair and regeneration. Monitoring IGF-1 is central to any relevant research protocol.
Context of the data
This particular form is offered as a research product; it is prohibited in sport (WADA) and non-medical use carries risks.
Note: Scientific reference based on clinical/preclinical data. It is not medical advice or a claim for the product.
In brief — scientific profile
- Recombinant human GH (191 amino acids) — identical to the natural hormone
- Direct administration of the hormone itself — not stimulation of the pituitary
- Acts through GH receptors and IGF-1 — anabolic, lipolytic, regenerative
- Suppresses natural feedback — key difference from GHRH/GHRP
- Pack of 3 × 36 IU — total 108 IU (≈ 36 mg)
- Research product — prohibited in sport (WADA)
Side effects and safety
Exogenous growth hormone has a clearer and stronger side-effect profile than GHRH analogues, particularly at high amounts, because it bypasses natural regulation.
Common
- Fluid retention / oedema
- Arthralgia / myalgia
- Injection-site reactions
Less common
- Carpal tunnel syndrome
- Insulin resistance / glucose changes
- Paraesthesia
Precautions
- Contraindicated in active malignancy (IGF-1 axis)
- Caution in diabetes / glucose intolerance
- Risk of acromegaly with excessive/prolonged use
Prolonged or excessive use is linked to more serious risks (e.g. acromegaly, metabolic disorders). Scientific reference, not an instruction for use.
Related products
Sermorelin
GHRH analogue (indirect GH stimulation)
Ipamorelin
Selective GHRP
IGF-1 LR3
The mediator of the GH axis
Peptide Matrix Water™
Recommended reconstitution solvent
See: All products · Blog
Research warning: Somatropin is offered exclusively for scientific, research and in vitro purposes. It is not intended for human/veterinary use, diagnosis, treatment or prevention of any condition and is not medical advice. Growth hormone is prohibited in sport (WADA) and non-medical use carries serious risks.
How does it differ from Sermorelin or Ipamorelin?
Sermorelin and Ipamorelin stimulate the pituitary to produce its own GH (preserving natural feedback). Somatropin is the hormone itself, administered directly — stronger but bypassing natural regulation.
Can you combine the measurement of GH with the measurement of IGF-1?
Yes – to optimise the dose and avoid possible side effects.
What if you break the research protocol?
Simply continue taking it at the first opportunity. Do not double the daily dose.
Buy HGH in Cyprus – price
You can buy HGH in Cyprus online from Peptology. Prices by strength:
- HGH: €139.00
Orders placed by 15:00 on working days ship the same day and are delivered in 5–7 working days with BOX NOW. Shipping costs €2 and is free from €50; you pay on delivery – by card through the BOX NOW payment link, before you open the locker.
HGH 3×36 IU: which strength
HGH is available in: 3×36 IU.
Research protocols
Important: Reference information for research purposes — not a recommendation for use or medical advice. Non-medical use of growth hormone carries serious risks.
In the clinical literature, somatropin is administered in strictly individualised regimens by healthcare professionals:
- Dosing is expressed in international units (IU) and adjusted to the endpoint
- IGF-1 is monitored as the main marker of response and safety
- Glucose parameters are monitored, because of the effect of GH on insulin
Unlike GHRH/GHRP analogues, here the hormone itself is administered directly — a fact that requires particular caution. The regimens come from the clinical literature and are not a recommendation for individual use.
Storage and reconstitution
It is supplied as a lyophilised powder in 3 vials of 36 IU. As a protein, it is heat-sensitive and is preferably stored refrigerated even when lyophilised. For reconstitution, the recommended solvent is Peptide Matrix Water™, which significantly extends the shelf life of the solution.
- Before reconstitution: preferably refrigerated at 2–8 °C, away from light; stable for an extended period.
- With Peptide Matrix Water™ (recommended): refrigerator 2–8 °C, the best option for solution stability.
- With bacteriostatic water: refrigerator 2–8 °C; use within a few weeks, no re-freezing.
- Reconstitution: add the solvent very slowly down the wall — GH is sensitive to vigorous agitation.
Laboratory tip: Add Peptide Matrix Water™ to your basket — the recommended stabilising solvent for all reconstituted products.
Laboratory protocol — reconstitution, research protocols, storage
Standard protocol, applicable to all research peptides in the Peptology catalogue. For the concentration of the solution (mg/mL) per vial, use the peptide reconstitution calculator.
The 60-second protocol
1. SOLVENT
2. RECONSTITUTION
The solvent is added to the wall of the vial, without agitation, then wait 10–15 minutes.
3. CALCULATION
Calculator → concentration in mg/mL
4. STORAGE
+2 °C to +8 °C, up to 60 days with Peptide Matrix Water
Quick reference
| Parameter | Value |
|---|---|
| Form | Lyophilised powder |
| Solvent | Peptide Matrix Water |
| Volume for reconstitution | 1–3 mL — 3 mL maximum (capacity of the standard vial) |
| Storage before reconstitution | Room temperature, protected from direct light (refrigeration is not mandatory) |
| After reconstitution | Up to 60 days at +2 °C to +8 °C with Peptide Matrix Water |
What you will need
Precision pipette
Calibrated, 100–1000 µL — for accurate measurement of the volume of solvent added to the vial.
70% alcohol pads
Two pads — to disinfect the peptide vial and the solvent vial.
Stabilised solvent for lyophilised peptides. Why this one.
Five rules for reconstitution
| ✅ Correct | ❌ Wrong |
|---|---|
| Disinfect the stoppers and the work surface with 70% alcohol, work with gloves | Working without disinfection |
| The solvent is added slowly down the wall of the vial | Direct jet onto the powder — foaming and denaturation |
| Light swirling between the palms | Shaking — foam, on which the peptides denature |
| Wait 10–15 minutes at room temperature | Mechanical mixing or heating |
| Visual inspection: clear, without particles | Using a cloudy or coloured solution |
Calculating the concentration
⚠️ Maximum 3 mL of solvent. The standard vial does not allow a larger volume — do not exceed it during reconstitution.
- Concentration (mg/mL) = mg in the vial ÷ mL of solvent
- Volume per sample (mL) = amount per sample (mg) ÷ concentration (mg/mL)
- 1 mg/mL = 1 µg/µL · 1 mL = 1000 µL
👉 For any vial and solvent volume — use the calculator. It calculates the concentration (mg/mL, µg/µL) and the volume per sample (mL, µL).
Storage
BEFORE RECONSTITUTION
Room temperature, protected from direct light, in the original packaging. Refrigeration is not mandatory.
AFTER RECONSTITUTION
+2 °C to +8 °C, up to 60 days with Peptide Matrix Water. Discard the remainder after this period.
FREEZING
Not recommended. Freeze/thaw cycles degrade the structure of the peptide.
Four mistakes to avoid
1. Shaking for “faster dissolution”
Foam = denaturation. Only gentle swirling between the palms.
2. Unsuitable solvent
For the stability of the peptide structure, use only a sterile, purpose-designed solvent — Peptide Matrix Water is recommended.
3. Ignoring slight cloudiness
If it is not completely clear = the sample does not meet the criteria for work.
4. Removing it from the refrigerator “for an hour or two”
Short exposures add up and jeopardise stability.
Research status: All Peptology products are intended exclusively for laboratory use and research. They are not pharmaceutical products, have not been approved for human or veterinary use and do not replace medical advice. The protocol described is standard laboratory practice for working with lyophilised peptides.
How is it stored?
Preferably refrigerated even when lyophilised, away from light. After reconstitution: with Peptide Matrix Water™ — stable at 2–8 °C; GH is a sensitive protein and requires gentle handling.
Purity and certificate of analysis
99%+ purity, HPLC/MS certificate for every batch.
Somatropin (GH 191AA) - 36 IU - Batch - 0226 - Purity
Shipping and payment
Orders placed by 15:00 on working days ship the same day and are delivered in 5–7 working days with BOX NOW. Shipping costs €2 and is free from €50; you pay on delivery – by card through the BOX NOW payment link, before you open the locker.
🚚 Delivery information
- Orders placed by 15:00 are dispatched the same day, delivery in 5–7 working days.
-
Shipping with BOX NOW, chosen at checkout. Free shipping from €50, otherwise €2.
Frequently asked questions about HGH
Where can I buy HGH in Cyprus and what does it cost?
In Cyprus you can buy HGH online from Peptology, from €139.00. Delivery in 5–7 working days with BOX NOW, free from €50; you pay on delivery – by card through the BOX NOW payment link, before you open the locker.
What is HGH (Somatropin)?
It is recombinant human growth hormone (HGH) — a 191-amino-acid protein identical to the natural one. It acts directly on GH receptors and via IGF-1.
In what form is HGH available?
As a lyophilised powder in a glass vial (3×36 IU). It is reconstituted in the laboratory with Peptide Matrix Water™ or bacteriostatic water; you can work out the concentration (mg/mL) with the <a href="/page/peptide-calculator">reconstitution calculator</a>.
Which side effects have been reported in clinical studies of HGH?
Exogenous growth hormone has a clearer and stronger side-effect profile than GHRH analogues, particularly at high amounts, because it bypasses natural regulation.
How long does delivery take and how do I pay?
Orders placed by 15:00 on working days ship the same day and are delivered in 5–7 working days with BOX NOW. Shipping costs €2 and is free from €50; you pay on delivery – by card through the BOX NOW payment link, before you open the locker.