Histatin-5 vs hGHRH(1-40)OH

Head-to-head comparison of Histatin-5 (Human histatin 5) and hGHRH(1-40)OH (Human growth hormone-releasing factor (1-40) hydroxyl) — benefits, dosing, side effects, research data, and where to buy.

Research Score

PropertyHistatin-5hGHRH(1-40)OH
CategoryDental & OralGrowth Hormone
Full NameHuman histatin 5Human growth hormone-releasing factor (1-40) hydroxyl
Molecular Weight3035 DaN/A
Half-Lifeminutes in saliva5-20 minutes
Amino Acids2440
Typical Dose1-100 µM in research formulations1-2 mcg/kg
RouteTopical/Oral rinseSubcutaneous/IV
Purity≥98%≥98%
Studies Count12085
Research StatusPre-clinicalClinical Research

Histatin-5 Benefits

  • anti-Candida activity
  • biofilm suppression
  • mucosal wound support
  • oral innate immunity

hGHRH(1-40)OH Benefits

  • GH secretion research
  • fragment-activity comparison
  • receptor binding studies
  • axis physiology modeling

Histatin-5 Dosing

topical rinse or gel|short contact exposure|repeat applications in research protocols

hGHRH(1-40)OH Dosing

1-2 mcg/kg SC or IV in acute research settings|single-bolus GH stimulation protocols|repeated low-dose administration in comparative studies

Histatin-5 Side Effects

  • local irritation
  • proteolytic instability
  • dose-dependent cytotoxicity in vitro

hGHRH(1-40)OH Side Effects

  • flushing
  • headache
  • lightheadedness

Research Overview

Histatin-5

Histatin-5 is a major salivary defense peptide that can kill Candida species and influence oral microbial communities. It is also investigated for wound-healing and xerostomia-associated oral infection models.

hGHRH(1-40)OH

Human GHRF(1-40)OH has been studied to understand how truncation of the native hormone changes biological potency and half-life. It is a common research tool for mapping minimal active sequences within the GHRH family.

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Common Stacking Partners

Histatin-5 stacks with:

chlorhexidinefluoridexylitol

hGHRH(1-40)OH stacks with:

L-arginineL-ornithineglycine
antimicrobial-peptidecandidasalivaoral-defenseghrhfragmentpituitaryresearch-peptide