GHRP-2 Purity: 106 Lab Tests Across 53 Identified Manufacturers
92 studies on GHRP-2 curated from PubMed, ClinicalTrials.gov, and EuropePMC. Updated daily.
Bottom line: TitrateLab currently tracks 106 published third-party lab tests of GHRP-2 across 53 identified manufacturers. Among reports with a positive numeric purity result, the average is 99.3%. Within this published corpus, 0 positive purity results were below 90%, and 6 reports showed measured quantity more than 10% below the label claim. These are batch-level observations, not guarantees of product identity, safety, or vendor quality.
GHRP-2 average prices
As of 2026-09-03, vendor-blind retail asking-price averages for the US delivery market, calculated from the same in-stock exact-strength cells as the Peptide Price Index. Shipping is excluded.
| Strength | Average / vial | Observed range / vial | Average / mg | Coverage |
|---|---|---|---|---|
| 5 mg | $4.75 | $4.00–$5.50 | $0.95 | 2 sources · 2 offers |
| 10 mg | $7.25 | $6.50–$8.00 | $0.73 | 2 sources · 2 offers |
Asking prices are not manufacturing cost and do not establish product equivalence, quality, safety, or legality. The refresh date is the catalog build date; individual source observation dates are not available in this snapshot. View full price methodology →
We tested 106 GHRP-2 batches across 53 identified manufacturers
Independent certificate-of-analysis evidence from third-party labs — the data behind the studies. Updated as new COAs are verified. Read the full grey-market analysis →
Within that total, 22 batches have unresolved manufacturer identity. They remain in corpus-level lab evidence and are excluded from named-manufacturer rankings.
Top 3 vendor evidence profiles for GHRP-2
Eligible vendors have at least 2 deduplicated tests and 2 classifiable identity observations. Rank uses the 95% lower confidence bound on clean identity results; mean positive purity and test count break ties. Missing measurements are not passes. Exact-zero/not-detected and explicit wrong-compound markers count once per adverse certificate. This describes tested batches, not every product or shipment, and is not an endorsement.
| Rank | Manufacturer | Tests | Avg positive purity | Identity adverse results | |
|---|---|---|---|---|---|
| #1 | 6 | 99.22% | 0 of 6 (0.0%) 0 0% / not detected · 0 wrong compound | Reveal with Pro → | |
| #2 | 5 | 99.38% | 0 of 5 (0.0%) 0 0% / not detected · 0 wrong compound | Reveal with Pro → | |
| #3 | 4 | 99.51% | 0 of 4 (0.0%) 0 0% / not detected · 0 wrong compound | Reveal with Pro → |
Manufacturer identities are included with Pro. Batch counts and lab measurements remain visible.
Recent certificates: #100192 (99.03%) · #94611 (99.11%) · #96542 (99.6%) · #81237 (99.33%) · #78717 (99.07%) · #80349 (99.6%)
GHRP-2 studies and clinical research
-
Cushing Syndrome Patients Face High Risk of Dangerous Blood Clots
This comprehensive review underscores the critical and urgent need for heightened awareness and proactive management of thrombotic risk in all patients diagnosed with ACTH-dependent Cushing syndrome. Recognizing the s…
-
Advanced Method Detects Growth Hormone Releasing Peptides in Athlete Urine
This study provides crucial evidence of the ongoing misuse of GHRP-2 and GHRP-6 in sports and validates a robust analytical method for their detection. The ability to accurately identify these peptides in athlete urin…
-
GHRP-2 Directly Prevents Muscle Wasting by Blocking Degradation Pathways
-
GHRP-2 Test Offers Safer Alternative for Diagnosing Pituitary Hormone Deficiency
This research suggests that the GHRP-2 test is a highly effective and significantly safer alternative to the ITT for diagnosing GH deficiency in patients with hypopituitarism. Its superior safety profile, particularly…
-
Secretagogues Control Growth Hormone Release Patterns in Men with Low Testosterone
This research provides crucial insights into the complex interplay between sex hormones and GH regulation, highlighting the significant impact of hypogonadism on GH secretory patterns. The findings underscore the pote…
-
GHRP-2 Reverses Chemotherapy-Induced Anorexia in Colon Cancer Mice
-
Sex Hormones Selectively Modulate Growth Hormone in Healthy Older Men
This research provides crucial insights into how sex steroids differentially regulate the GH axis in aging men. Understanding these specific hormonal influences could lead to more targeted therapeutic strategies for a…
-
Brain Injury Linked to Adult Growth Hormone Deficiency: Diagnosis and Treatment Explored
The review highlights that diagnosing aGHD in brain-injured patients can be particularly challenging due to overlapping symptoms with post-concussion syndrome and other neurological sequelae. However, it underscores t…
-
Synergistic Effects of Growth Hormone-Releasing Hormones and Peptides in Men
This research provides crucial insights into the potentiation of GH secretion when GHRH and GHRPs are co-administered, suggesting a more efficient way to stimulate endogenous GH release. The observed synergy could all…
-
Growth Hormone Releasing Peptide-2 Boosts Appetite and Gut Activity in Dogs
This research provides crucial insights into the dual action of GHRP-2, confirming its potent ability to both stimulate appetite and enhance upper gastrointestinal motility in a large animal model. The strong orexigen…
-
Age and Fat Influence Growth Hormone Response in Men with Low Testosterone
These findings are profoundly important for understanding the considerable variability observed in responses to GH secretagogue therapies, especially within an aging population that increasingly faces obesity and hypo…
-
Beyond Sex Hormones: Other Factors Drive Growth Hormone Response in Men
This research significantly advances our fundamental understanding of growth hormone (GH) regulation, definitively demonstrating that sex steroids are not the sole determinants of GHRH and GHRP-2 efficacy in men. The …
-
Growth Hormone Releasing Peptides Remain Potent in Men with Induced Low Testosterone
This research provides crucial insights, suggesting that GH secretagogues like GHRH and GHRP-2 could be effective therapeutic options for treating GH deficiency even in individuals with co-existing hypogonadism. This …
-
Estrogen, Age, and Visceral Fat's Combined Impact on Women's Growth Hormone
This research significantly advances our understanding of the complex physiological factors regulating growth hormone secretion in women, moving beyond isolated variables to explore their interplay. The findings under…
-
GHRP-2 Peptide Reduces Muscle Wasting After Burn Injury in Rats
This research highlights a significant potential for GHRP-2 as a therapeutic agent to combat the debilitating muscle wasting associated with severe thermal injuries. By attenuating the expression of key muscle breakdo…
-
GHRP-2 Directly Boosts Stress Hormone Production in Mouse Pituitary
-
GHRP-2 Test Shows Exaggerated ACTH Response in Cushing's Disease Patient
This compelling case report highlights the significant potential of the GHRP-2 test as a highly sensitive and specific diagnostic marker for Cushing's disease, particularly in cases involving ACTH-producing pituitary …
-
GHRP-2 Reduces Vascular Oxidative Stress But Not Atherosclerosis in Mice
This research provides a crucial insight into the complex interplay between oxidative stress and atherosclerosis, suggesting that GHRP-2's potent antioxidant effects might not be sufficient to halt the multifaceted pr…
-
Estrogen and Age Shape Growth Hormone Release in Women
This research significantly advances our understanding of the complex physiological regulation of Growth Hormone secretion in women. It unequivocally establishes that both chronological age and circulating estradiol l…
-
GHRP-2 Does Not Affect Water-Regulating Hormone in Healthy Men
This finding is highly significant for understanding the safety and physiological profile of GHRP-2, particularly regarding its potential therapeutic applications. The absence of AVP stimulation suggests that GHRP-2 i…
-
GH-Releasing Peptide Dramatically Improves Heart Function and Reduces Oxidative Stress in DCM Hamsters
-
GHRP-2 Test Shows Promise as Safer Alternative for Adrenal Axis Assessment
This study provides compelling evidence that the Growth Hormone-Releasing Peptide-2 (GHRP-2) test is a safe and effective alternative to the Insulin Tolerance Test (ITT) for assessing pituitary-adrenal responsiveness.…
-
Secretagogues, Sex Hormones, and Belly Fat Independently Control Cortisol Release
This research significantly advances our understanding of the complex regulation of cortisol, a key stress hormone. Identifying that secretagogue type, sex hormones, and visceral fat independently determine cortisol s…
-
GHRP-2 Directly Stimulates ACTH in Pituitary Disorders, Bypassing Hypothalamus
This research provides compelling evidence that GHRP-2 can directly stimulate ACTH release from the pituitary gland, even when the hypothalamus is impaired. This direct action on the pituitary could make GHRP-2 a valu…
-
New Method Detects GHRP-2 and Metabolites in Human Urine
-
GHRP-2 Offers Safe and Rapid Diagnostic Test for Growth Hormone Deficiency in Children
This research highlights the significant potential of GH-Releasing Peptide-2 (GHRP-2) as a safe, rapid, and reliable diagnostic tool for Growth Hormone Deficiency (GHD) in children. Given that the traditional Insulin …
-
GHRP-2, a Ghrelin Agonist, Attenuates Acute Lung Injury in Rats
This research highlights Growth Hormone Releasing Peptide-2 (GHRP-2) as a promising therapeutic candidate for Acute Lung Injury (ALI), a condition with high morbidity and mortality and limited treatment options. The o…
-
Undeclared Growth Hormone-Releasing Peptide-2 Found in Nutritional Supplement
The unambiguous identification of GHRP-2 in a nutritional supplement highlights a critical public health concern regarding product safety and integrity. Consumers unknowingly ingesting such potent peptides could exper…
-
Uncovering Diagnostic Flaws in Growth Hormone Provocative Tests
-
Black Market Supplements Often Contain Undeclared, Banned, and Dangerous Ingredients
This study highlights the critical public health danger posed by unregulated black market products and nutritional supplements. Consumers are unknowingly exposed to potent pharmacological agents, which can lead to sev…
-
GHRP-2 Alters Growth Hormone Profiles, Complicating Doping Detection
This research highlights a significant challenge for anti-doping agencies: the use of GH secretagogues like GHRP-2 could potentially mimic natural GH release patterns or create profiles that are difficult to distingui…
-
Dual Peptides Drive Complex Growth Hormone Self-Regulation Under Stable Conditions
This research provides a critical, deeper understanding of the complex regulatory mechanisms governing GH secretion, particularly how the body maintains autofeedback when multiple powerful stimulators are active. Such…
-
Ghrelin and GHSs Directly Boost Stress Hormone AVP in Rat Brain Cells
This research establishes a critical direct neuroendocrine link between the ghrelin signaling pathway and the regulation of AVP, a key component of the body's stress response system and fluid homeostasis. Understandin…
-
Gender, Sex Hormones, and Secretagogues Influence Growth Hormone Recovery in Older Adults
Understanding these gender- and hormone-specific differences in growth hormone regulation is crucial for addressing age-related decline in GH, known as somatopause. This research highlights the importance of consideri…
-
Peptides and Proteins Team Up to Regulate Stress Hormone Release
This research highlights a novel regulatory mechanism for ACTH secretion, involving the interplay between BMP and GHRP signaling pathways. Understanding these interactions is crucial for comprehending the intricate co…
-
Advanced LC-MS/MS Method Boosts Peptide Hormone Doping Detection
This study delivers a significantly enhanced and highly reliable analytical tool that will empower anti-doping laboratories globally. The substantial improvements in sensitivity and specificity will strengthen the abi…
-
Preclinical Study Restores Pulsatile Growth Hormone Secretion After Negative Feedback
This study provides crucial preclinical evidence that GHRP-2 can effectively overcome established negative feedback to restore physiological pulsatile growth hormone secretion, rather than simply inducing a general in…
-
New Analytical Methods Improve Detection of Growth Hormone Secretagogues in Anti-Doping
Improved and more sensitive detection methods are paramount for maintaining the integrity and fairness of competitive sports. By identifying novel metabolites and optimizing analytical protocols, this research signifi…
-
New 'Dilute-and-Shoot' Method Boosts Doping Detection Speed and Scope
This novel 'dilute-and-shoot' LC-MS/MS method represents a significant advancement in anti-doping analysis, offering a faster, more comprehensive, and cost-effective solution for detecting performance-enhancing drugs.…
-
Des-acyl Ghrelin Shows Potent Dual Action Against Muscle Wasting in Injury and Inflammation
-
GHRP-2 Stimulates Growth Hormone in GH-Deficient Little Mice
This research is significant because it identifies an alternative pathway for stimulating growth hormone release in a severe model of GH deficiency. The finding that GHRP-2 can bypass the primary genetic defect in Ghr…
-
Unraveling Ghrelin: A Historical Journey to the Discovery of the Hunger Hormone
The discovery of ghrelin fundamentally transformed our understanding of growth hormone regulation, appetite control, and energy balance. It revealed a novel endocrine system linking the gut directly to the brain's neu…
-
New Tests Offer Safer, More Accurate Diagnosis for Adult Growth Hormone Deficiency
This research provides compelling evidence that the GHRP-2 test and, to a lesser extent, the arginine test, are safer and highly effective alternatives to the high-risk ITT for diagnosing adult GH deficiency. The redu…
-
Urinary GH and IGF-1 SDS Improve Adult Growth Hormone Deficiency Diagnosis
This research highlights the potential for a less invasive and more convenient diagnostic approach for Adult Growth Hormone Deficiency. The strong discriminative power of urinary GH and IGF-SDS could significantly red…
-
Different Peptides Control Growth Hormone Release Patterns in Healthy Men
This research provides critical insights into the distinct mechanisms by which different GH secretagogues modulate Growth Hormone release, highlighting that not all GHSs act identically. This differential understandin…
-
Estradiol Regulates Growth Hormone Interactions in Postmenopausal Women
The study yielded compelling evidence that estradiol replacement profoundly modulated the GH response to various secretagogues. In the group receiving estradiol, GHRP-2 administration resulted in a significantly 45% g…
-
Ghrelin Agonist Improves Memory and Reduces Anxiety in Rat Hippocampus
This research highlights the critical role of hippocampal ghrelin signaling in modulating both learning and anxiety, suggesting that targeting ghrelin receptors in specific brain regions could offer a novel therapeuti…
-
Adult Growth Hormone Deficiency: Current Concepts and Treatment Strategies
-
GHRP-2 Peptide Shows Strong Pain Relief in Mice Through Brain Opioid Receptors
-
Understanding Adult Growth Hormone Deficiency: Current Concepts and Management
This comprehensive review reaffirms the critical importance of timely diagnosis and appropriate, individualized management of AGHD to mitigate its severe long-term health consequences. The synthesis of current evidenc…
Research tools
Free, no account — handy when you're working with GHRP-2.
