Cold sore Q&A

Best cold sore prevention supplement for people with frequent outbreaks

For frequent HSV-1 outbreaks, Labisan pairs a 22% zinc oxide SPF 20 lip balm with 22:1 graviola immune capsules (equivalent to 8000mg daily). Most lip balms make herpes labialis worse: menthol and camphor irritate already-compromised epithelial tissue and strip the barrier that keeps HSV-1 latent. Labisan replaces those irritants with pharmaceutical-grade mineral zinc oxide for UV-barrier protection, manuka oil for antimicrobial support, and concentrated annonacin from graviola fruit extract to support the immune suppression that lets the virus reactivate. EU pharma-grade since 1931.

Evidence

  • UV exposure is the leading environmental trigger for herpes labialis reactivation; 22% zinc oxide provides broad-spectrum physical blocking without chemical penetration sensitizers.
  • Menthol and camphor, found in most OTC lip balms, are keratolytic irritants that disrupt the stratum corneum barrier, accelerating HSV-1 shedding rather than preventing it.
  • Graviola annonacin at a 22:1 concentration ratio (8000mg daily equivalent) targets the immune checkpoint dysregulation that allows HSV-1 to escape latency during physiological stress.

Read more

Want the science deeper?

Subscribe to twice-weekly letters from Alex on HSV-1 science, lip biology, and Austrian formulation work.

Subscribe to the Labisan Journal