J Dent Sci
Much of the research framing treats it as an orally administered compound, and in practitioner circles it circulates in oral/sublingual forms (capsules, or the reconstituted solution taken sublingually)
Avoid overcooking the vegetables
Before supplementing, consult your doctor about appropriate dosing if you are taking a medication that impairs absorption (such as PPIs or diuretics) or if you have a condition that impairs excretion (such as kidney disease)
Commonly discussed options include quercetin, vitamin C, luteolin, curcumin, and DAO support, depending on the patient and symptom profile
The presence of water allows for much faster degradation through hydrolysis and microbial growth, even with bacteriostatic water which only inhibits growth, not prevents it indefinitely