• Prevents cold sores
  • 100% natural and effective formulation
  • Enhances general health and wellbeing
  • Easy-to-use, daily sachets
  • No fillers
  • GMP certified
  • Made in UK

If you buy a 1 month supply it is £1.16 per day, if you subscribe monthly it is £0.99 per day. If you buy a 12 month supply it is £0.81 per day, if you subscribe annually it is £0.68 per day, saving £175 per year (42%).







Customer Reviews

Based on 2 reviews
Lia Jayne Godding
So far so good... Fingers crossed!

I have had cold sores for around 15 years, I have seen specialists, doctors and more... I really suffer when it's that time of the month or if Ive been out in the sun. I wear spf50 on my lips! I'm even on Aciclovir tablets. I came across oldsore on a new hope and research of products and I have been on helfi for a month and the ointment and I've had 2 coldsores try to break out and it literally has kept them at bay and stopped huge break outs. I'm keeping my fingers crossed this keeps working because so far it's been a life saver!! Thank you oldsore from a very happy customer

Linda Krupinski
A brand new product that works

I’ve started my months supply of helfi after suffering 3 nasty cold sores last month, I took my first sachet as I was recovering from my 10 day cold sore, my lip feels and looks so much better, I feel confident that helfi will prevent further outbreaks.

Product description

helfi is the natural daily sachet that prevents cold sores from forming. Rather than treating cold sores when they form, helfi’s natural ingredients give your body everything it needs to stop them from even forming in the first place! Just one a day, keeps the cold sores away.

However, helfi is more than just a super effective cold sore cure. Each ingredient has been carefully selected to enhance your general health and wellbeing as well. Check out the science behind the ingredients below to see the benefits each one gives.

Make your cold sores history – stay healthy with helfi.

helfi cold sore sachet packaging and sachet with a red background


Lysine, Blackberry extract, Vitamin C, Astaxanthin , Calcium lactate

The Science Behind the ingredients


Lysine is an amino acid that can help to prevent cold sore outbreaks by blocking arginine, which is necessary for cold sores to replicate.

Blackberry Extract

Blackberries contain flavonoids: Flavonoids are a type of antioxidant that helps to protect the body against damage from free radicals. They also have anti-inflammatory properties, which can help to reduce the swelling and redness around the cold sore. Blackberries are rich in flavonoids, including anthocyanins and quercetin.

Blackberries are low in arginine – Arginine is an amino acid that can trigger cold sore outbreak in some people. Foods that are high in arginine, such as chocolate and nuts, should be avoided if you are prone to cold sores. Blackberries, on the other hand, are low in arginine, making them safe and healthy choice for those with cold sores.

Vitamin C

Vitamin C is an antioxidant that helps protect the body's cells from damage caused by free radicals. It also plays a key role in supporting the immune system by promoting the production of white blood cells and antibodies that help fight off infections.

When it comes to cold sores, vitamin C helps by reducing the duration and severity of the outbreak. It also promotes the healing of the sores by supporting the production of collagen, a protein that is essential for the repair of skin tissue.


Astaxanthin has anti-inflammatory properties, making it a potentially useful supplement for reducing the inflammation that is a common symptom of cold sores. By reducing inflammation, astaxanthin can alleviate pain and speed up the healing process.

Astaxanthin has been shown to have antiviral properties against several types of viruses, including herpes simplex virus (HSV). This makes it a useful supplement for preventing cold sores from developing in the first place.

Astaxanthin may boost the immune system by having immunomodulatory effects, which means that it can help to regulate the immune system. A strong immune system can help to prevent cold sores from developing.

Calcium Lactate

Calcium Lactate is effective at reducing the time cold sores persist. Studies published in the Journal of Oral Pathology and Medicine found that the application of calcium lactate on the skin reduced the duration of cold sores by an average of two days.

Calcium lactate may also promote wound healing by stimulating the growth of new skin cells and reducing inflammation at the site of the cold sore. This can help to speed up the healing process and reduce the time it takes for the cold sore to resolve.

To find out more about our product and the science behind it, try our helfi sachets.