Jar of Lysine capsules to treat oral and genital herpes on a pink background and red surface
Jar of Lysine capsules to treat oral and genital herpes on a pink background and red surface
 5 star customer review for all-natural herpes treatment with colorful product imagery in the background
All-Natural Herpes Treatment on a pink tray with a refreshing drink on a green sofa
Hand holding lysine capsules next to jar on red background
Lysine capsules on pink background

L-Lysine Cold Sores (HSV-1)

Reviews Trustpilot

A trusted, over the counter cold sore treatment.

Tired of ineffective cold sore home remedies? In certain individuals, high Lysine blood levels may help prevent the Cold Sore virus from replicating, while reducing the duration and severity of outbreaks.*

FSA & HSA accepted.

Starting at $27.00

Choose a One-Time Treatment or Subscription


Cold Sores, or HSV-1, are caused by the Herpes Simplex Virus, which is known to hide in the spine. During times of stress or when the immune system is compromised, the herpes virus may cause an outbreak, resulting in one or more cold sores. Cold sores cause mild discomfort to severe physical pain. While few over the counter herpes treatments work, Lysine (especially as a combination therapy) has been linked to a reduction in Cold Sore symptoms.

Read more about Cold Sores

*These statements have not been evaluated by the Food and Drug Administration. This product is not intended to diagnose, treat, cure, or prevent any disease.

Cold Sore Symptoms

  • Painful blisters on the mouth, lips, nose or throat
  • Fever and body aches (similar to flu-symptoms)
  • Mouth and throat pain
  • Blisters eventually pop and scab over in begin healing
  • Cold sore symptoms last about 12 days
  • Swelling in the neck

Medication Details

As seen in

Cold Sore Treatment FAQ

Your Provider

Andrea Sleeth, WHNP

Cold sores are common. But outbreaks decrease in intensity and duration with antiviral medication. We prescribe FDA approved meds based on the frequency and severity of symptoms.

Andrea Sleeth, WHNP

How It Works


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Get the care you need on your terms. Feeling unsure? Let our Symptoms Quiz guide you.

Our Experts Review

If needed, a licensed medical provider will follow up same day by phone or secure chat to ensure you receive safe and effective care.

Same-Day Pickup | FREE Delivery

Get your prescription sent to your pharmacy same day or have your care shipped FREE to your home in discreet packaging.

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