Sermorelin (Серморелін)

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GHRH 1-29 — the beginning of GH protocols

Synonyms:СерморелінсерморелінGRF 1-29Mod GRF 1-29серморелин
4.9·58 reviews
Уточнюйте наявність

Synthetic GHRH (GRF 1-29). Previously FDA-approved for GH deficiency diagnosis. Available at DOZA as research-grade peptide. Starting molecule for GH protocols 35+.

Course12 тижнів × 3–4 курси/рік1 pen
Dosage200–500 mcg/day subcutaneously before bedtime
Administration💉 Pen Peptide injection pen
💡

FDA-схвалений (1997, Geref) GHRH-аналог. Стандартний протокол: 200–500 мкг 1 раз на день п/ш перед сном (за 30–60 хв; на порожній шлунок, мінімум 2 год після вечері). Тривалість курсу 12 тижнів дає клінічно значуще підвищення IGF-1 на 20–40%. Перерва між курсами 4 тижні. Контроль IGF-1 кожні 8 тижнів обов'язковий. Можливо 3–4 курси на рік. Sermorelin наразі не входить до основного асортименту pre-mixed pen Pen Peptide — доступність уточнюйте у консультанта DOZA.

Free specialist consultation

Benefits

  • FDA-approved (Geref, 1997) — one of the best-studied GHRH analogs
  • Preserves natural pulsatile GH pattern without desensitization
  • Safer than synthetic HGH — lower risk of side effects
  • Short half-life 10–20 min — easy to control and "reset"
  • Improves sleep quality (REM phase), energy, recovery
  • Moderately increases IGF-1 (20–40%) — no oncostimulation risk
  • Starting molecule for transition to CJC-1295 + Ipamorelin at 35+
  • Synergy with Ipamorelin for doubled nighttime GH peak

Who it's for

  • ✔️GH stack beginners (35–45 years) — as first step before CJC-1295
  • ✔️People with chronic fatigue and poor sleep — Sermorelin improves REM
  • ✔️Women 40+ with perimenopausal GH decline
  • ✔️Athletes in off-season for recovery and sleep quality
  • ✔️Those wanting to discontinue synthetic HGH due to side effects
  • ✔️Anti-aging protocol 35+ with moderate IGF-1 elevation

How to take

Standard FDA Geref protocol:

• Dose: 200–500 mcg once daily subcutaneously.

• Timing: 30–60 minutes before bedtime, on empty stomach (minimum 2 hours after dinner) — to avoid suppressing natural GH peak.

Injection site: subcutaneously in abdomen or anterior thigh. Rotate injection sites. Zone rotation reduces risk of lipoatrophy.

Storage: lyophilized powder in refrigerator before reconstitution; after reconstitution — refrigerated 2–8°C, up to 14 days.

Course duration: 12 weeks. 4-week break. Possible 3–4 courses per year.

IGF-1 monitoring at start, after 8 weeks and end of course. Target level — upper third of reference range.

Often combined with Ipamorelin (200–300 mcg together) for synergy: GHRH (Sermorelin) + ghrelin-mimetic (Ipamorelin) provide double GH peak compared to each separately.

Sermorelin is currently not included in main Pen Peptide lineup. Supply and exact cost should be clarified with DOZA consultant.

Before starting — mandatory specialist consultation and analysis of IGF-1, glucose, lipid profile.

Full description

Sermorelin is a synthetic analog of growth hormone-releasing hormone (GHRH), consisting of the first 29 amino acids of the natural molecule. FDA-approved in 1997 as Geref (Serono Laboratories) for treating GH deficiency in children — one of the safest and best-studied GHRH analogs. In 2008, the manufacturer withdrew the drug from market for commercial reasons (low pediatric demand), however Sermorelin continues to be used in the US through FDA-registered compounding pharmacies (Category 1) for anti-aging and regenerative medicine.

Unlike direct HGH injections, Sermorelin stimulates the pituitary to naturally produce growth hormone, preserving the pulsatile nature of nighttime secretion. This is significantly safer than synthetic HGH (lower risk of fluid retention, joint pain, hyperglycemia, acromegaly), and IGF-1 increases moderately (20–40% over 12 weeks) — without the risk of oncological stimulation associated with higher HGH doses.

Ideal for beginners in GH stack: shorter half-life (10–20 min) allows control over effects, easy to discontinue if needed. Often combined with Ipamorelin (synergy through GHSR receptor) to double nighttime GH peak without side effects. Improves sleep quality (REM phase), energy, recovery, skin, body composition and cognitive function. Particularly relevant for people 35+, whose natural GH levels decline by 14–15% per decade.

Note: Sermorelin is currently not included in the main Pen Peptide pre-mixed pen lineup. Availability by inquiry; cost and protocol are individually coordinated with DOZA consultant.

Mechanism of action

Sermorelin (GRF 1-29) is a synthetic peptide consisting of the first 29 amino acids of natural GHRH (44 AA). FDA-approved in 1997 under trade name Geref Diagnostic. Binds to GHRH receptors on somatotrophs in the anterior pituitary → stimulates physiological pulsatile GH release without receptor desensitization (Gelato et al., J Clin Endocrinol Metab 1985). Key advantage: preserves natural GH pulsatility (peak nighttime releases every 3-4 hours) — unlike exogenous GH which suppresses endogenous production and eliminates pulsatility. 25+ years of clinical experience — the most studied GHRH peptide worldwide. Effects through GH→IGF-1 axis: stimulation of lipolysis, protein synthesis, collagenogenesis (skin/joints) and improved deep sleep. In women — additional effects on skin and hair quality through Type III collagen stimulation.

Side effects & contraindications

Sermorelin (Geref) is one of the safest GHRH analogs, with safety profile documented by 30+ years of FDA practice.

Possible rare side effects:

• Injection site irritation (redness, swelling) — in 1–3% of cases.

• Flushing (facial warmth sensation) — typical reaction for first 1–3 days.

• Mild headache — adaptation period.

• Possible temporary sleep disturbance with evening administration (effect subsides in 1–2 weeks).

• Very rarely — hyperglycemia at high doses (>500 mcg).

• Rare — nausea, abdominal discomfort.

Contraindications:

• Active malignancy — IGF-1 potentially stimulates tumor growth.

• Severe pituitary insufficiency.

• Pregnancy and lactation.

• Uncontrolled diabetes.

• Severe renal or hepatic insufficiency.

• Allergy to drug components.

• Active hyperthyroidism.

IGF-1 and glucose monitoring is mandatory. Before starting — DOZA specialist consultation required.

Scientific evidence

Аналог GHRH; стимулює гіпофіз для викиду GH.

Sermorelin (Geref) had limited FDA approval (1990s) for diagnostic pituitary testing; commercially withdrawn 2008. Available only through compounding pharmacies.

Перейти до повної бази scientific evidence

Часті запитання про Sermorelin

СD

Sermorelin can be ordered at DOZA. Check price via Telegram @Doza_sofia_bot or in catalog. Delivery across Ukraine via Nova Poshta cold chain in 1-2 days.

Спеціаліст DOZA

СD

Sermorelin (GHRH 1-29) and CJC-1295 (Mod GRF 1-29 No DAC) are both GHRH analogs that stimulate endogenous GH production. Differences: Sermorelin — FDA-approved (1997, Geref), 30+ years clinical base, 10–20 min half-life — milder, more natural. CJC-1295 No DAC — modified analog, 30 min half-life, somewhat stronger effect on GH secretion, available in Pen Peptide pen format. Sermorelin — better start for beginners and people 35–45 years, also for those wanting FDA-validated history. CJC-1295 No DAC — for people 40+ with more pronounced anti-aging needs, or as next step after Sermorelin course. Often combined with Ipamorelin for synergy.

Спеціаліст DOZA

СD

Week 2-3 — improved sleep and energy. 4-6 — more muscle tone and recovery. 8-12 — noticeable fat reduction (especially abdominal), skin improvement, increased motivation for sports. IGF-1 increases by 20-40% over 8-12 weeks.

Спеціаліст DOZA

СD

FDA-approved since 1997 — most studied GHRH analog. Safe with cyclic use (3-4 courses/year) under IGF-1 monitoring. Long-term risks significantly lower than synthetic HGH because natural regulation is preserved. Mandatory monitoring: IGF-1, fasting glucose, lipid profile before course and after 8 weeks.

Спеціаліст DOZA

СD

Yes, this is the classic "GH stack" in anti-aging medicine — Sermorelin + Ipamorelin injected together subcutaneously before bedtime. Synergistic effect: Sermorelin (GHRH) activates GH synthesis, Ipamorelin (ghrelin-mimetic, GHSR) stimulates its secretion through different receptor — resulting in doubled GH peak compared to each separately. Standard doses: Sermorelin 200–300 mcg + Ipamorelin 200–300 mcg together evening, 5 days per week. 12-week course. IGF-1 monitoring mandatory. Sermorelin not included in Pen Peptide lineup; Ipamorelin available in pen format — DOZA advises on combination selection.

Спеціаліст DOZA

СD

Not indicated: active oncology or in remission <5 years, pregnancy and lactation, children and adolescents without official GH deficiency diagnosis, uncontrolled diabetes, severe renal/hepatic insufficiency, critical illness in ICU. Mandatory endocrinologist consultation before starting.

Спеціаліст DOZA

СD

Currently — no. Sermorelin is not included in main Pen Peptide pre-mixed pen lineup (dtspharmacy.com Sermorelin collection is empty). However, Sermorelin continues to be supplied through specialized FDA-registered compounding pharmacies in the US and other channels. Check availability with DOZA consultant — cost, form and protocol are individually coordinated. For similar effect with guaranteed availability choose CJC-1295 No DAC from Pen Peptide.

Спеціаліст DOZA

СD

Inject subcutaneously in abdomen or anterior thigh, rotating sites, 30–60 minutes before bedtime. Mandatory condition: empty stomach (minimum 2 hours after dinner) — otherwise food in blood will suppress natural GH peak. If Sermorelin is supplied as lyophilized powder — reconstitute with bacteriostatic water, then store refrigerated 2–8°C up to 14 days. Don't mix with other substances in same syringe (can inject Sermorelin and Ipamorelin as separate injections consecutively). Before first injection — detailed DOZA specialist consultation.

Спеціаліст DOZA

СD

Exact course cost is individually coordinated by DOZA consultant, since Sermorelin is not standard Pen Peptide product and is supplied from limited sources. In global practice, 12-week course costs approximately 600–1200 USD (compounding pharmacy in US). At DOZA cost is optimized for Ukrainian market. Alternative with guaranteed availability and lower price — CJC-1295 No DAC from Pen Peptide (available at DOZA).

Спеціаліст DOZA

Client reviews

★★★★★Olena V.20.11.2025

Sermorelin — felt the effect after the first week. Fast delivery, everything in thermo-packaging. DOZA — thank you for the support!

★★★★★Andrii S.10.12.2025

Ordering Sermorelin for the second course already. Original quality, fair price. DOZA consultant answered all my questions.

View all client results

Buy Sermorelin in Ukraine — DOZA

Sermorelin is available in Ukraine through DOZA online service. GHRH 1-29 — the beginning of GH protocols. We ensure original quality, safe storage and delivery across Ukraine via Nova Poshta. Every order includes a free specialist consultation.

Buy Sermorelin with 1–2 day delivery across Ukraine. Cold chain 2–8°C. We respond 24/7.

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