--- title: "GHRP-2 Dosage Guide [2026] | BodyHackGuide" url: https://www.bodyhackguide.co/guides/dosage/ghrp-2 description: "Complete GHRP-2 dosage guide with protocols, calculator, safety info, and where to buy. Updated for 2026." lang: en --- Skip to content Compare notes on r/BodyHackGuide (https://reddit.com/r/bodyhackguide) Compare notes with other researchers. Join r/BodyHackGuide (https://reddit.com/r/bodyhackguide) Growth Hormone / IGF-1 Axis Phase II # GHRP-2 Dosage Guide: Protocols, Calculator & Safety Everything you need to know about GHRP-2 dosing: protocols, safety, and where to buy. Dose Range 100–300 mcg per injection Frequency 1–3 times daily; bedtime injection most important Cycle Length 8–12 weeks with 4-week breaks Half-Life ~15-30 minutes ## Administration Routes Subcutaneous Intramuscular Intranasal ### Quick Reconstitution Calculator Calculate syringe units instantly Syringe Draw 10.0 units 2500 mcg/ml · 0.100 ml draw Full Tool (https://www.bodyhackguide.co/tools/reconstitution) For laboratory research use only. This tool performs reconstitution math (concentration and syringe-unit conversion) and is not dosing guidance for humans or animals. ## Dosing Protocols Beginner **Standard beginner protocol:** - **Dose:** 100 mcg subcutaneous per injection - **Frequency:** 2-3x daily - **Timing:** Empty-stomach windows — pre-breakfast, pre-training, pre-bed - **Duration:** 12-16 weeks to assess response **Reconstitution:** Typical vials are 5 mg lyophilized. Reconstitute with 2 mL bacteriostatic water for a 2.5 mg/mL concentration. A 100 mcg dose = 0.04 mL = **4 units** on a U-100 insulin syringe. **Timing logic:** - **Pre-breakfast (upon waking, fasted):** Captures the natural morning GH pulse window before insulin rises from the first meal. - **Pre-training (30-45 min before workout, if trained fasted or 2+ hours post-meal):** Amplifies training-induced GH release. - **Pre-bed (fasted, 30-60 min before sleep):** Aligns with the dominant endogenous nocturnal GH pulse. **Why fasted:** Elevated blood glucose and insulin blunt GH release through increased somatostatin tone. GHRP-2's potency is meaningfully reduced when dosed with or immediately after meals. Wait at least 2-3 hours after eating before dosing. **First-use considerations:** - Most users tolerate 100 mcg SC without appreciable nausea or flushing - Some users experience mild head rush or warm flush in the first 5 minutes; this fades quickly - Appetite increase will be noticeable within an hour — plan meals accordingly - Expect vivid dreams with bedtime dosing **Labs to run before starting:** IGF-1, fasting insulin, fasting glucose, HbA1c, basic metabolic panel, AM cortisol (if concerned about HPA status). Recheck at week 8 and week 16. Standard **Optimized protocol for experienced users:** - **Dose:** 150-200 mcg SC per injection - **Frequency:** 2-3x daily - **Timing:** Pre-breakfast / pre-training / pre-bed (fasted) - **Stack:** Typically combined with a GHRH analog for synergy **Standard GHRP-2 + GHRH stack:** - **GHRP-2:** 150-200 mcg SC - **Sermorelin:** 200-300 mcg SC, OR - **CJC-1295 (no-DAC):** 100-200 mcg SC - Both drawn into the same insulin syringe and injected together **Why combine:** GHRP-2 provides the ghrelin-pathway signal; GHRH analog provides the parallel GHRH-pathway signal. The intracellular convergence amplifies GH pulse amplitude **3-5x** above either alone ([Bowers 1991]). This synergy is reliable across users and is the mechanistic foundation of classical peptide GH optimization protocols. **Cycling options:** - **Continuous daily use:** Straightforward. Monitor for receptor desensitization every 3 months via IGF-1 plateau detection. - **5-on / 2-off weekly cycle:** Weekends off to partially reset receptor sensitivity. Many practitioners prefer this for chronic use. - **8-week-on / 2-week-off macro cycle:** Full GHS-R1a reset every 2-3 months. **Progressive dosing:** Some users titrate gradually: - Weeks 1-2: 100 mcg 2x daily - Weeks 3-4: 100 mcg 3x daily - Weeks 5-8: 150 mcg 3x daily - Weeks 9+: 200 mcg 3x daily (if needed based on IGF-1 response) Doses beyond 200 mcg per injection show diminishing returns due to GHS-R1a receptor saturation. Increasing frequency beyond 3x daily produces more consistent GH elevation but does not meaningfully increase total GH output. Advanced **Advanced protocol considerations:** Most advanced users transition from GHRP-2 monotherapy to either: 1. GHRP-2 + GHRH combination (described above), or 2. Switch to ipamorelin (https://www.bodyhackguide.co/compound/ipamorelin) for cleaner long-term use **Situations where GHRP-2 is preferred over ipamorelin:** - **Short-duration aggressive anabolic phase** (8-12 weeks) where maximum GH pulse amplitude matters more than cortisol cleanliness - **Bulking / caloric surplus** where the appetite stimulation is a feature not a bug - **Cost sensitivity** — GHRP-2 is often less expensive per mg than ipamorelin **Situations where ipamorelin is preferred over GHRP-2:** - **Chronic daily use beyond 3-4 months** - **Cutting / caloric deficit** where appetite stimulation is unwanted - **Users with baseline HPA axis concerns, anxiety, or prolactin issues** - **Users prioritizing "clean" pharmacology over maximum GH pulse** **Full performance stack example (8-12 week anabolic phase):** - GHRP-2: 200 mcg SC × 3 daily - CJC-1295 no-DAC: 100 mcg SC × 3 daily (paired with each GHRP-2 injection) - BPC-157 (https://www.bodyhackguide.co/compound/bpc-157): 500 mcg SC × 2 daily (for connective tissue and training recovery) - TB-500 (https://www.bodyhackguide.co/compound/tb-500): 2 mg SC × 2 weekly (soft tissue remodeling) **Combinations to manage:** - **With testosterone replacement:** Well-established anabolic synergy; additive body composition effects - **With GLP-1 agonists (semaglutide, tirzepatide):** GHRP-2's appetite stimulation partially antagonizes the GLP-1 appetite suppression. Use either the minimum GHRP-2 dose needed or consider ipamorelin instead **Combinations to avoid:** - **GHRP-2 + GHRP-6:** Mechanistically redundant; both GHS-R1a agonists. No additional benefit. - **GHRP-2 + Hexarelin:** Same class; redundant. Also, hexarelin has more pronounced cortisol and prolactin effects. - **GHRP-2 + MK-677:** Redundant for GHS-pathway purposes. If 24-hour coverage is the goal, MK-677 alone is simpler. - **GHRP-2 + exogenous HGH:** Pointless — exogenous GH suppresses endogenous pituitary output via IGF-1 negative feedback, rendering GHRP-2 functionally inert. **Discontinuation triggers:** Persistent joint pain, peripheral edema, carpal tunnel symptoms, elevated fasting glucose (>110 mg/dL persistently), or any cardiovascular symptoms. ## Weight-Based Dosing 1–2 mcg/kg per injection. Saturation dose ~100–200 mcg for most. ## Commonly Stacked With ### Synergistic Combinations **GHRP-2 + GHRH analog (sermorelin, CJC-1295 no-DAC, or tesamorelin):** The foundational synergistic pairing. GH pulse amplitude amplified **3-5x** vs either alone ([Bowers 1991]). Inject simultaneously SC, 2-3x daily, fasted. **GHRP-2 + BPC-157 / TB-500:** Complementary for training intensification. GHRP-2 drives systemic anabolism; BPC-157 and TB-500 drive connective tissue and soft-tissue healing. Standard in peptide-assisted recovery from hard training or injury. **GHRP-2 + Testosterone optimization:** Additive anabolic effects. Well-established clinical synergy in hypogonadal men with GH-axis decline. ### Situational **GHRP-2 + Semaglutide/Tirzepatide:** Opposing appetite signals. GHRP-2 stimulates hunger (ghrelin-receptor agonism); GLP-1 agonists suppress it. In users who want both lean-mass preservation during a GLP-1 deficit phase, keeping GHRP-2 dose minimal (50-100 mcg) preserves GH stimulus without significantly antagonizing the GLP-1 appetite effect. Consider ipamorelin (https://www.bodyhackguide.co/compound/ipamorelin) as the cleaner choice here. **GHRP-2 + NAD+:** Non-interfering, complementary for longevity-focused protocols. NAD+ supports mitochondrial function; GHRP-2 supports GH/IGF-1 axis. Different pathways. ### Redundant (Avoid or Reconsider) **GHRP-2 + GHRP-6 (https://www.bodyhackguide.co/compound/ghrp-6):** Same mechanism class (GHS-R1a). No synergistic benefit; GHRP-6 has higher appetite-stimulating effect which may or may not be desired. **GHRP-2 + Hexarelin (https://www.bodyhackguide.co/compound/hexarelin):** Same class. Hexarelin has more pronounced cortisol and prolactin elevation — combining stacks the unwanted cross-effects without additive GH benefit. **GHRP-2 + MK-677 (https://www.bodyhackguide.co/compound/mk-677):** Both GHS-R1a agonists. MK-677 provides 24-hour receptor occupancy; adding short-pulse GHRP-2 produces diminishing returns. Choose one. **GHRP-2 + Ipamorelin (https://www.bodyhackguide.co/compound/ipamorelin):** Same class. Ipamorelin is mechanistically a cleaner version of GHRP-2 — pick one based on whether maximum pulse or clean profile matters more. ### Avoid **GHRP-2 + exogenous recombinant HGH:** Pharmacologically counterproductive. Exogenous GH suppresses endogenous GHRH and somatotroph activity via IGF-1 negative feedback. GHRP-2 is rendered functionally inert. **GHRP-2 + aggressive glucocorticoid therapy:** GH-axis stimulation is less effective under pharmacologic steroid context, and both agents can additively affect glucose homeostasis. ### Related Compound Pages - Ipamorelin (https://www.bodyhackguide.co/compound/ipamorelin) — Cleaner GHS-R1a agonist alternative - GHRP-6 (https://www.bodyhackguide.co/compound/ghrp-6) — Earlier-generation GHS with stronger appetite effect - Hexarelin (https://www.bodyhackguide.co/compound/hexarelin) — More potent GHS with more cortisol elevation - CJC-1295 (https://www.bodyhackguide.co/compound/cjc-1295) — GHRH analog synergy partner - Sermorelin (https://www.bodyhackguide.co/compound/sermorelin) — Pulsatile GHRH synergy partner - Tesamorelin (https://www.bodyhackguide.co/compound/tesamorelin) — FDA-approved GHRH analog - MK-677 (https://www.bodyhackguide.co/compound/mk-677) — Oral long-acting GHS alternative - BPC-157 (https://www.bodyhackguide.co/compound/bpc-157) — Tissue repair stack partner - TB-500 (https://www.bodyhackguide.co/compound/tb-500) — Soft tissue remodeling stack partner - NAD+ (https://www.bodyhackguide.co/compound/nad) — Mitochondrial longevity stack partner - Epithalon (https://www.bodyhackguide.co/compound/epithalon) — Pineal/telomere support ## Side Effects & Safety \## Common (dose-dependent) - **Increased appetite / hunger** — GHRP-2 is a ghrelin-receptor agonist, and ghrelin is the body's primary hunger signal. Expect measurable appetite stimulation starting ~30 minutes post-injection and peaking at 1-2 hours. Beneficial in caloric surplus phases; problematic in deficit phases. - **Transient cortisol elevation** — +15-25% above baseline in the 60-90 min post-injection window. Usually clinically trivial in healthy users but relevant in users with HPA axis dysregulation, adrenal insufficiency, or stress-driven cortisol issues. - **Modest prolactin elevation** — usually not clinically meaningful but relevant in users with baseline prolactin concerns or prolactin-sensitive pathologies. - **Injection site reactions** — mild erythema or transient itching at SC site; site rotation minimizes. - **Flushing** — warm, pink flush in face/neck post-injection, fading within 15-30 minutes. ## Less Common - **Mild fluid retention** — particularly in first 2-3 weeks of daily use; usually self-limiting. - **Vivid dreams** — secondary to improved slow-wave sleep when dosed at bedtime. - **Transient insulin sensitivity reduction** — GH-axis stimulation modestly reduces insulin sensitivity; monitor HbA1c and fasting glucose in extended use. - **Headache** — mild, typically responsive to hydration. - **Nausea** — uncommon at SC doses; more common with high IV boluses. ## Rare - **Significant hypotension** — primarily with IV administration; SC route rarely produces meaningful BP effects. - **Hypersensitivity reactions** — rare local or systemic allergic response. - **Paresthesia or scalp tingling** — transient, benign. - **Dysgeusia** — metallic or unusual taste immediately post-injection. ## Cumulative with Long-term Use - **Insulin resistance** — sustained daily dosing over months can modestly reduce insulin sensitivity. Monitor HbA1c and fasting insulin quarterly. - **Receptor desensitization** — unlike GHRH analogs which retain pituitary responsiveness well, chronic high-dose GHS can produce measurable GHS-R1a tachyphylaxis. Cycling protocols (5 on / 2 off, or 8 weeks on / 2 weeks off) help maintain responsiveness. - **HPA axis adaptation** — persistent low-grade cortisol elevation over months could theoretically contribute to HPA dysregulation in susceptible users. Periodic ACTH/cortisol monitoring in chronic protocols is sensible. ## Theoretical Long-term Concerns As with all GH-axis interventions, the IGF-1 elevation produced by GHRP-2 raises a theoretical concern around chronic supraphysiologic mitogenic signaling and cancer risk. No causal link has been demonstrated in trials, but mechanistic plausibility supports conservative dosing, periodic IGF-1 monitoring, and avoidance in users with active malignancy or strong family history of hormonally-responsive cancers. ## Signs You Are Overdosing - Persistent joint discomfort or peripheral edema - Carpal tunnel-like symptoms - Persistent elevated fasting glucose - Unexpected weight gain beyond what caloric intake accounts for - Sleep apnea worsening Any of these warrant dose reduction or discontinuation. Contraindications GHRP-2 is contraindicated or requires caution in: - **Active malignancy** — particularly hormone-responsive cancers (breast, prostate); elevated IGF-1 may promote tumor growth - **Strong family history of GH-axis sensitive cancers** — specialist supervision required - **Pregnancy and lactation** — no established safety data; avoid - **Known hypersensitivity** to GHRP-2, related hexapeptides, or any excipient - **Severe untreated obstructive sleep apnea** — theoretical airway soft-tissue concern - **Acute critical illness** — GH-axis stimulation inappropriate during sepsis, post-surgical recovery, multiple trauma, respiratory failure - **Diabetic ketoacidosis or severe uncontrolled diabetes** — resolve metabolic state first - **Active proliferative retinopathy** — relative contraindication - **Hypothalamic-pituitary disease with adrenal insufficiency** — the residual cortisol effect may be unreliable; specialist supervision required - **Prolactinoma or hyperprolactinemia** — the modest prolactin elevation could complicate management **Relative cautions (monitor closely):** - Borderline fasting glucose or HbA1c — GH-axis effects can tip toward insulin resistance - Cushing's syndrome or baseline elevated cortisol — GHRP-2 adds to HPA axis load - Anxiety or HPA axis dysregulation — the cortisol elevation, while modest, may be poorly tolerated - Strong family history of colon polyps — baseline colonoscopy before starting, surveillance per GI guidelines - Concurrent glucocorticoid therapy — GH-axis stimulation is less effective under pharmacologic steroid **Drug interactions:** - **Glucocorticoids:** Pharmacodynamic interference; reduced GH response - **Opiates/opioids:** Can augment the cortisol and prolactin effects of GHRP-2; monitor - **Thyroid hormone replacement:** GH-axis changes can modify thyroid needs; monitor TSH if using chronically - **Exogenous GH:** Pharmacologically counterproductive; the combination is pointless **Discontinuation triggers:** - Persistent joint pain, carpal tunnel symptoms, or peripheral edema (suggesting IGF-1 is too high) - Persistent fasting glucose elevation beyond 110 mg/dL - Any signs of cushingoid body composition change (buffalo hump, moon face, central obesity beyond baseline) - Worsening sleep apnea - New or changing pigmented lesions (unrelated to GHRP-2 but always a stop-and-evaluate signal in any peptide protocol) - Any cardiovascular symptoms Check interactions with the Interaction Checker → (https://www.bodyhackguide.co/tools/interaction-checker) ## Additional Notes ### Standard Dosing Reference | User Tier | Per Injection | Frequency | Daily Total | | --- | --- | --- | --- | | Beginner | 100 mcg | 2x/day | 200 mcg | | Intermediate | 100-150 mcg | 3x/day | 300-450 mcg | | Advanced | 150-200 mcg | 3x/day | 450-600 mcg | | Diagnostic IV (Japan, adult) | 100 mcg IV | Single bolus | - | ### Rules 1. **Fasted dosing** - at least 2-3 hours after last meal, as elevated glucose/insulin blunts GH release 2. **Pre-activity timing** - pre-breakfast, pre-training, pre-bed are the optimal windows 3. **Subcutaneous route** - IV route reserved for diagnostic testing 4. **Consistent timing** - GH axis entrains to regular schedules; variability reduces effectiveness 5. **Single-injection ceiling: ~300 mcg** - above this, receptor saturation prevents additional GH release ### Concentration and Volume Standard 5 mg vial + 2 mL BAC water = **2.5 mg/mL**: - 100 mcg = 0.04 mL = **4 units** on U-100 insulin syringe - 150 mcg = 0.06 mL = **6 units** - 200 mcg = 0.08 mL = **8 units** - 300 mcg = 0.12 mL = **12 units** ### Monitoring - **Baseline:** IGF-1, fasting insulin, fasting glucose, HbA1c, AM cortisol, prolactin (if using long-term) - **Week 8:** Recheck IGF-1 and fasting glucose - **Week 16:** Full panel including cortisol and prolactin - **Every 3 months thereafter:** IGF-1 + fasting glucose - **Every 6 months:** Full panel **Target IGF-1:** Upper quartile of age-adjusted reference range. Not supraphysiologic. ### When Not to Dose - Within 2-3 hours of a meal (reduced efficacy) - During acute illness with fever - If fasting glucose is persistently above 110 mg/dL - address metabolic state first - If current cortisol levels are elevated or under clinical investigation ### Storage - Lyophilized: refrigerated 2-8 deg C, stable up to 2 years sealed - Reconstituted: refrigerated 2-8 deg C, use within **30 days** - Never freeze reconstituted peptide - Protect from light Where to Buy GHRP-2 Compare 2 listings across 2 vendors, from $22.99 https://www.bodyhackguide.co/compound/ghrp-2 ## Frequently Asked Questions What is the recommended GHRP-2 dosage? The typical dose range for GHRP-2 is 100–300 mcg per injection. It is usually administered 1–3 times daily; bedtime injection most important. Always start with the lowest effective dose. How often should I take GHRP-2? Does GHRP-2 need to be cycled? Yes, typical cycle length is 8–12 weeks with 4-week breaks. What are GHRP-2 side effects? Where can I buy GHRP-2? Compare 2 listings from 2 vendors on our price comparison page, starting from $22.99. GHRP-2 Full Profile Research data, mechanisms, and pricing https://www.bodyhackguide.co/compound/ghrp-2 Interaction Checker Check drug & compound interactions https://www.bodyhackguide.co/tools/interaction-checker ## Related Dosage Guides All Guides (https://www.bodyhackguide.co/guides) ### CJC-1295 (Mod GRF 1-29) Growth Hormone / IGF-1 Axis · Dosage Guide https://www.bodyhackguide.co/guides/dosage/cjc-1295 ### CJC-1295 with DAC Growth Hormone / IGF-1 Axis · Dosage Guide https://www.bodyhackguide.co/guides/dosage/cjc-1295-with-dac ### CJC-1295 with DAC Growth Hormone / IGF-1 Axis · Dosage Guide https://www.bodyhackguide.co/guides/dosage/cjc-1295-dac ### GHRP-6 Growth Hormone / IGF-1 Axis · Dosage Guide https://www.bodyhackguide.co/guides/dosage/ghrp-6 Free 2026 Peptide Cheat Sheet (PDF) 38 compounds and blends: vial sizes, BAC water volumes, dosing ranges and bloodwork markers. Download Free (https://www.bodyhackguide.co/guides/peptide-cheat-sheet-download) Image: BodyHackGuide (https://www.bodyhackguide.co/assets/bodyhackguide-logo-DOzZNUyh.webp) ### BodyHackGuide Your biohacking research hub: compound pricing, brain health protocols, dosing tools, and vendor reviews. support@bodyhackguide.co Join our Discord: https://discord.gg/Mhq5UdRYBA r/BodyHackGuide on Reddit: https://reddit.com/r/BodyHackGuide #### Explore - Compare prices: https://www.bodyhackguide.co/compare - Vendors: https://www.bodyhackguide.co/vendors - Deals: https://www.bodyhackguide.co/deals - Coupons: https://www.bodyhackguide.co/coupons - Nootropics: https://www.bodyhackguide.co/nootropics - Brain health: https://www.bodyhackguide.co/brain-health - Blog: https://www.bodyhackguide.co/blog - Guides: https://www.bodyhackguide.co/guides #### Tools - Reconstitution: https://www.bodyhackguide.co/tools/reconstitution - Half-life visualizer: https://www.bodyhackguide.co/tools/halflife - COA reader: https://www.bodyhackguide.co/tools/coa - Cost calculator: https://www.bodyhackguide.co/tools/cost-calculator - Stack builder: https://www.bodyhackguide.co/stack-builder - All tools: https://www.bodyhackguide.co/tools #### Trust & vendors - Vendor directory: https://www.bodyhackguide.co/vendors - Trust scorecard: https://www.bodyhackguide.co/vendors/scorecard - Vendor trust badge: https://www.bodyhackguide.co/vendors/get-vetted - Scoring methodology: https://www.bodyhackguide.co/vendors/methodology - Peptide cheat sheet: https://www.bodyhackguide.co/guides/peptide-cheat-sheet-download #### Company - About: https://www.bodyhackguide.co/about - Affiliate disclosure: https://www.bodyhackguide.co/affiliate-disclosure - Editorial standards: https://www.bodyhackguide.co/editorial-standards - Creators: https://www.bodyhackguide.co/creators - Coaches: https://www.bodyhackguide.co/coaches - 1-on-1 coaching: https://www.bodyhackguide.co/coaching - Privacy: https://www.bodyhackguide.co/privacy - Terms: https://www.bodyhackguide.co/terms - Full site directory: https://www.bodyhackguide.co/site-directory **Affiliate Disclosure:** We rank every vendor on the same public, reproducible methodology (https://www.bodyhackguide.co/vendors/methodology), and we earn a commission from purchases made through some of our links at no extra cost to you. Full details in our affiliate disclosure (https://www.bodyhackguide.co/affiliate-disclosure). **Research Disclaimer:** All compounds listed are for laboratory and research purposes only. Not for human consumption. This site does not sell or ship any products. Always consult a qualified healthcare professional and comply with local regulations. © 2026 BodyHackGuide. All rights reserved. · Terms (https://www.bodyhackguide.co/terms) · Privacy (https://www.bodyhackguide.co/privacy) ## Structured data ```json [ { "@context": "https://schema.org", "@type": "Article", "headline": "GHRP-2 Dosage Guide [2026]", "description": "Complete GHRP-2 dosage guide with protocols, calculator, safety info, and where to buy. Updated for 2026.", "author": { "@type": "Person", "name": "BioChonch", "url": "https://www.bodyhackguide.co/about", "jobTitle": "Founder & Lead Researcher", "sameAs": [ "https://reddit.com/r/BodyHackGuide", "https://reddit.com/r/BrainHackGuide", "https://reddit.com/r/Biohackingher" ], "worksFor": { "@type": "Organization", "name": "BodyHackGuide", "url": "https://www.bodyhackguide.co" } }, "reviewedBy": { "@type": "Person", "name": "BioChonch", "url": "https://www.bodyhackguide.co/about", "jobTitle": "Founder & Lead Researcher", "sameAs": [ "https://reddit.com/r/BodyHackGuide", "https://reddit.com/r/BrainHackGuide", "https://reddit.com/r/Biohackingher" ], "worksFor": { "@type": "Organization", "name": "BodyHackGuide", "url": "https://www.bodyhackguide.co" } }, "publisher": { "@type": "Organization", "name": "BodyHackGuide", "url": "https://www.bodyhackguide.co", "logo": { "@type": "ImageObject", "url": "https://www.bodyhackguide.co/bhglogo.png" } } }, { "@context": "https://schema.org", "@type": "FAQPage", "mainEntity": [ { "@type": "Question", "name": "What is the recommended GHRP-2 dosage?", "acceptedAnswer": { "@type": "Answer", "text": "The typical dose range for GHRP-2 is 100–300 mcg per injection. It is usually administered 1–3 times daily; bedtime injection most important. Always start with the lowest effective dose." } }, { "@type": "Question", "name": "How often should I take GHRP-2?", "acceptedAnswer": { "@type": "Answer", "text": "1–3 times daily; bedtime injection most important" } }, { "@type": "Question", "name": "Does GHRP-2 need to be cycled?", "acceptedAnswer": { "@type": "Answer", "text": "Yes, typical cycle length is 8–12 weeks with 4-week breaks." } }, { "@type": "Question", "name": "What are GHRP-2 side effects?", "acceptedAnswer": { "@type": "Answer", "text": "## Common (dose-dependent)\n\n- **Increased appetite / hunger** — GHRP-2 is a ghrelin-receptor agonist, and ghrelin is the body's primary hunger signal. Expect measurable appetite stimulation starting ~30 minutes post-injection and peaking at 1-2 hours. Beneficial in caloric surplus phases; problematic in deficit phases.\n- **Transient cortisol elevation** — +15-25% above baseline in the 60-90 min post-injection window. Usually clinically trivial in healthy users but relevant in users with HPA axis dysregulation, adrenal insufficiency, or stress-driven cortisol issues.\n- **Modest prolactin elevation** — usually not clinically meaningful but relevant in users with baseline prolactin concerns or prolactin-sensitive pathologies.\n- **Injection site reactions** — mild erythema or transient itching at SC site; site rotation minimizes.\n- **Flushing** — warm, pink flush in face/neck post-injection, fading within 15-30 minutes.\n\n## Less Common\n\n- **Mild fluid retention** — particularly in first 2-3 weeks of daily use; usually self-limiting.\n- **Vivid dreams** — secondary to improved slow-wave sleep when dosed at bedtime.\n- **Transient insulin sensitivity reduction** — GH-axis stimulation modestly reduces insulin sensitivity; monitor HbA1c and fasting glucose in extended use.\n- **Headache** — mild, typically responsive to hydration.\n- **Nausea** — uncommon at SC doses; more common with high IV boluses.\n\n## Rare\n\n- **Significant hypotension** — primarily with IV administration; SC route rarely produces meaningful BP effects.\n- **Hypersensitivity reactions** — rare local or systemic allergic response.\n- **Paresthesia or scalp tingling** — transient, benign.\n- **Dysgeusia** — metallic or unusual taste immediately post-injection.\n\n## Cumulative with Long-term Use\n\n- **Insulin resistance** — sustained daily dosing over months can modestly reduce insulin sensitivity. Monitor HbA1c and fasting insulin quarterly.\n- **Receptor desensitization** — unlike GHRH analogs which retain pituitary responsiveness well, chronic high-dose GHS can produce measurable GHS-R1a tachyphylaxis. Cycling protocols (5 on / 2 off, or 8 weeks on / 2 weeks off) help maintain responsiveness.\n- **HPA axis adaptation** — persistent low-grade cortisol elevation over months could theoretically contribute to HPA dysregulation in susceptible users. Periodic ACTH/cortisol monitoring in chronic protocols is sensible.\n\n## Theoretical Long-term Concerns\n\nAs with all GH-axis interventions, the IGF-1 elevation produced by GHRP-2 raises a theoretical concern around chronic supraphysiologic mitogenic signaling and cancer risk. No causal link has been demonstrated in trials, but mechanistic plausibility supports conservative dosing, periodic IGF-1 monitoring, and avoidance in users with active malignancy or strong family history of hormonally-responsive cancers.\n\n## Signs You Are Overdosing\n\n- Persistent joint discomfort or peripheral edema\n- Carpal tunnel-like symptoms\n- Persistent elevated fasting glucose\n- Unexpected weight gain beyond what caloric intake accounts for\n- Sleep apnea worsening\n\nAny of these warrant dose reduction or discontinuation." } }, { "@type": "Question", "name": "Where can I buy GHRP-2?", "acceptedAnswer": { "@type": "Answer", "text": "Compare 2 listings from 2 vendors on our price comparison page, starting from $22.99." } } ] }, { "@context": "https://schema.org", "@type": "BreadcrumbList", "itemListElement": [ { "@type": "ListItem", "position": 1, "name": "Home", "item": "https://www.bodyhackguide.co/" }, { "@type": "ListItem", "position": 2, "name": "Guides", "item": "https://www.bodyhackguide.co/guides" }, { "@type": "ListItem", "position": 3, "name": "Dosage Guides", "item": "https://www.bodyhackguide.co/guides" }, { "@type": "ListItem", "position": 4, "name": "GHRP-2 Dosage", "item": "https://www.bodyhackguide.co/guides/dosage/ghrp-2" } ] } ] ```