Immune system

The immune system helps the body stay healthy. It consists of tissues, cells and small organs that produce white blood cells. Without a healthy immune system, you cannot defend yourself against potential threats from the environment. Essential oils and dietary supplements can boost your immune system.* doTERRA On Guard® can be an excellent line of defense. Used on a daily basis, it can help keep your immune system strong and healthy.


  • Add two to three drops of Oregano, doTERRA On Guard, Lemon, Melaleuca or Thyme to a veggie capsule or try doTERRA On Guard+ softgels for daily immune support.* Taken daily, along with a healthy and balanced diet, these supplements can be your first line of defense in maintaining immune system health.

The immune system is responsible for protecting your body from environmental threats. To do this, the immune system uses various cells, tissues and organs, many of which are also used for other body functions. The immune system’s first line of defense is your skin. It acts as a barrier that keeps intruders out. Mucous membranes in your nose, mouth and throat also protect your body from invaders by catching potential threats and preventing them from entering the body.

When environmental threats manage to get past this line of defence, white blood cells spring into action. White blood cells find invaders, tag them as harmful and destroy them. But that’s not all – they also remember the invaders, so that if they try to attack you again, your body can stop them even faster. White blood cells are made and stored in various places in the body, such as the tonsils, thymus, lymph nodes, bone marrow and your spleen.

Keeping a properly functioning immune system depends on many things, including adequate sleep, regular exercise, and a balanced diet. Malnutrition and micronutrient deficiencies can lead to altered immune responses and an increased risk of health problems. Supplementing your diet with specific vitamins, minerals, and probiotics can build and strengthen the immune system.

Daily supplementation with Microplex VMz® nutritional complex is rich in vitamin D3 and other vitamins and minerals that support a healthy immune system.* PB Assist®+ Probiotic Defense Formula may also be beneficial to the immune system by supporting gut health.* Use essential oils such as Oregano, doTERRA On Guard® , Lemon, Melaleuca and Thyme to support the immune system.*

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