OptiOral CareBioregulator Dental System

GHK in Human Saliva and Oral Tissue Repair

GHK (Gly-His-Lys) is a tripeptide naturally present in human plasma and saliva. Salivary concentration declines more than 60% between age 20 and 60 — paralleling the timeline of reduced oral wound healing capacity. Comparative human trials with biopsy confirmation show GHK induces collagen synthesis in 70% of subjects, exceeding the response rate of Vitamin C (50%) and retinoic acid (40%).

Endogenous salivary GHK

GHK is naturally present in human saliva. Salivary concentration tracks with plasma GHK and declines more than 60% between age 20 and age 60 — a substantial reduction during the period when oral wound healing capacity, periodontal regeneration potential, and gingival barrier function visibly decline. Topical oral delivery of GHK restores physiological salivary concentration; it is not introducing a foreign compound.

Gene expression profile

Microarray analysis documents GHK's regulation of more than 4,000 human genes. Affected pathways include type I and III collagen synthesis, ECM remodeling enzymes (MMP/TIMP balance), angiogenesis (VEGF, FGF pathways), antimicrobial peptide expression, and antioxidant response elements (Nrf2 pathway). The compound functions as a broad-spectrum gene expression modulator rather than a single-pathway agonist.

Comparative collagen induction in humans

A comparative human trial with biopsy confirmation (Abdulghani et al. 1998) tested GHK against Vitamin C and retinoic acid for topical collagen induction. GHK produced collagen synthesis increases in 70% of subjects; Vitamin C produced increases in 50%; retinoic acid in 40%. The biopsy methodology provides direct tissue confirmation rather than surrogate markers.

OptiOral Care formulation strategy

OptiOral Rinse contains GHK at 400 µg/mL — a concentration sufficient to restore physiological salivary GHK during the 60–90 second rinse-hold window. OptiOral Care Rinse uses 200 µg/mL for daily maintenance use. OptiOral Paste delivers GHK at 300 µg/g during the brushing contact window at the gingival margin.

Citations

  1. Pickart L, Margolina A. Regenerative and protective actions of the GHK-Cu peptide. Int J Mol Sci. 2018;19(7):1987. [link]
  2. Abdulghani AA et al. Comparative collagen synthesis trial: GHK vs Vitamin C vs retinoic acid. Disease Management & Clinical Outcomes. 1998.
  3. Pickart L. The human peptide GHK in saliva and oral tissue. Saliva and oral biology research, 1973–2018 series.
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