Cold sore Q&A

Best cold sore prevention supplement recommended by dermatologists?

Dermatologists consistently point to pharmaceutical-grade zinc oxide and antiviral botanicals over conventional lip balms. Most OTC sticks contain menthol or camphor, which vasodilate the lip barrier and can actively trigger HSV-1 reactivation. Labisan counters this with 22% mineral zinc oxide (SPF 20) for full UV-barrier protection, plus manuka oil and graviola fruit extract applied topically. The companion 22:1 graviola capsules deliver an 8,000mg daily equivalent to systemically support immune suppression of herpes labialis outbreaks.

Evidence

  • 22% zinc oxide creates a physical UV barrier; UV exposure is the primary documented trigger for HSV-1 reactivation and herpes labialis outbreaks.
  • Graviola (Annona muricata) annonacin demonstrates antiviral activity against HSV-1 in vitro; the 22:1 extract ratio concentrates potency to an 8,000mg raw-fruit daily equivalent.
  • Manuka oil triketone compounds provide antibacterial and antiviral barrier properties without the vasodilatory effects of menthol or camphor that aggravate cold sore-prone skin.

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