Common questions that you might have about sanitisers and the immune system

What are sanitisers?

Hand sanitisers are substances which help to remove or reduce bacteria, viruses and other pathogenic substances from the desired area, mainly hands and arms. They are available in liquid, gel and foam form.

What is the immune system?

Immune system is the organisation of many cells and molecules located in our bodies to fight off antigens such as infections, bacteria, fungi or chemicals. There are numerous cells in our bodies who fight different types of antigens. In order to develop immunity against a specific antigen, the body needs to get into contact with it so that next time, when the same virus or bacteria invades, our body has specific antibodies ready to fight against it effectively.

Can sanitisers affect the immune system?

To date, there is no evidence suggesting that hand sanitisers can directly alter the immune system, hence, you can use the hand sanitisers as often as needed. It is recommended to use hand sanitisers containing at least 60% of alcohol, as germs are unable to develop immunity to it.

However, there is a way for hand sanitisers to reduce immunity and allow germs to enter the body. This would be due to a drying effect it has on the skin. To prevent this from happening, moisturise your skin regularly.

How often should I use a sanitiser?

In short, as often as you see fit and what makes you feel safe. There is no evidence that hand sanitising is harmful for your immune system. If anything, it is an effective way to kill the COVID-19 virus while it is still on the surface and not in your system.

Is there a difference between the sanitisers I use?

Yes, there is. It is recommended to use liquid hand sanitisers as they can kill the bacteria faster. For example it has been observed that liquid sanitisers can kill the bacteria within 15 seconds after use, whereas gel sanitisers can take up to 30 seconds. In the large scale it might not seem as very much of a difference, however, it is also suggested that sanitisers which kill bacteria faster are also more effective.

What weakens the immune system?

There are several aspects that can have a negative impact on your immune system. For instance, excessive use of alcohol, smoking or recreational drugs can weaken your immunity and make you more susceptible to fall ill. Moreover, poor eating habits may also reduce the ability of the body to fight against antigens. Having a diet high in red meats, sugar, saturated fats and low in fibre will result in increased levels of inflammation in your body. Also, the body will not receive enough vitamins and minerals which are very important in healthy functioning of the immune system.

How can I keep my immune system strong?

As mentioned above, ensure to have a well balanced diet full of fruits and vegetables so that your body can receive the needed amount of vitamins and minerals. If implementing a good source of vegetables and fruits is challenging, try to add supplementation. However, be aware that supplements are not substituting needed vitamins and minerals, they just enhance what is being consumed. Moreover, try to moderate alcohol intake and quit smoking if possible. And last but not least, try to promote an active lifestyle. It is suggested that regular exercise can increase the immune system and reduce the weakening process with years passing by.


We hope this information is useful for you. If you need advice or have any questions about our treatments, please contact us. You can find us in Mill Hill Broadway and Islington. We are always happy to help. If you like this blog, please share!

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