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Health Product                

PB Assist+

Product Overview

The product description information on this page comes primarily from the  doTERRA company.

A Probiotic Defense Formula

Product Description

DōTerra PB Assist+ Probiotic Defense Formula is a proprietary blend of pre-biotic fiber and six strains of probiotic microorganisms in a unique double-layer vegetable capsule delivering 5 billion CFUs of active probiotic cultures and soluble pre-biotic FOS (fructo-oligosaccharides) that encourages culture adhesion and growth. The time-release double-capsule delivery system protects sensitive probiotic cultures from stomach acid. PB Assist+ supports healthy digestive functions and immunities and is safe for use by all members of your family.


Your gastrointestinal (GI) tract is your body’s first line of defense against food-borne pathogens that can cause sickness and disease. Powerful acids in your stomach kill many of the harmful microorganisms such as bacteria and viruses entering through your stomach with food and other surface-borne pathogens coming in contact with your hands and then with your mouth. Beyond your stomach, your intestinal tract also performs very important immune functions in the body. A healthy intestinal tract is critical for optimal digestive function and immune protection.

Intestinal Immunities

The walls of the intestine are covered with millions of hair-like cellular microstructures called villi and microvilli. It is through the villi that our food nutrients are assimilated for use. (The surface area of the intestinal tract is estimated to be as large as a tennis court!) The villi of the intestine also include specialized immune cells that function as immune messengers alerting mobile immune cells in the blood stream and in other parts of the body when under attack from invading pathogens.

Living on the villi of the intestinal tract is a group of microorganisms called the intestinal microflora or microbiota. (There are 10 times more microorganisms in the intestinal tract than the 10 trillion cells making up the human body!). Friendly intestinal microflora have a symbiotic relationship with host organisms and provide additional immune defense against pathogenic infection of the GI tract. When healthy colonies of friendly bacteria are present in the intestine, they prevent the adherence and colonization of other pathogenic microorganisms that can cause sickness and disease.* Healthy colonies of friendly microflora prevent the proliferation of pathogenic organisms by competing for nutrients necessary for growth, and by crowding out unfriendly microorganisms as they compete for intestinal surface area. They also produce chemical by-products that create an intestinal environment in which the harmful microorganisms cannot flourish.

Acquired Immunities of the GI Tract

Before birth, a healthy baby’s GI tract is free of bacteria and other microorganisms. During the birthing process, a baby is exposed to colonies of intestinal microflora from its mother. As healthy colonies of friendly microflora grow in a new-born baby’s intestinal tract, the baby’s immune system is “trained” or “programmed” to differentiate between pathogenic and harmless microorganisms and respond appropriately. The body’s ability to respond in a measured way to harmful pathogens, and not to respond to unharmful antigens is an important part of preventing overreactions of the immune system such as in allergies and gut inflammatory diseases.*By the second year of life, a child’s intestinal microflora is very similar to adults.

Digestion of Food Nutrients

Intestinal microflora also play a critical role in the breakdown and absorption of food nutrients, particularly carbohydrates. Some strains of intestinal flora produce enzymes the human body cannot produce but are necessary for breaking down certain carbohydrates into short-chain fatty acids, or SCFAs, for digestion. SCFAs are a major source of food energy and metabolism and also help in the digestive process. SCFAs also contribute to the proliferation and specialization of epithelial cells in the intestine, and to the healthy function of the gut.*

In addition to helping the digestion of carbohydrates, gut microflora also produce and help the body absorb vitamin K and can help with absorption of other nutrients such as calcium, magnesium, and iron. (One animal study showed that rodents with healthy colonies of active intestinal microflora consumed 23% less food for growth than their counterparts with no intestinal microflora!)

Probiotic Supplementation

There are many ways our intestinal microflora can be compromised or even killed. Stress, physical exertion, toxins in our diet, exposure to harmful microorganisms, and the use of antibiotic therapies can pose significant challenges to the colonization and function of friendly microorganism in the gut. Healthy intestinal microflora are also challenged in people whose diets consist of high levels of animal fats and proteins and are low in fiber. Futhermore, studies have shown a steady decline in friendly intestinal flora in both men and women as they age.

When intestinal flora is compromised, our bodies become more prone to infectious pathogens in the gut and our immune system cannot function optimally. Unhealthy conditions associated with compromised intestinal microflora include suppressed immune system function, intestinal deterioration, diarrhea, constipation, infection, and even bone strength reduction. To counter such threats, supplemental strains of friendly microorganisms, or probiotics, can be used as part of regular dietary supplement program.*

Primary Benefits

• Supports healthy digestive functions and immunities while creating an unfavorable environment for unhealthy bacteria, yeast, and other harmful microorganisms*

• Helps boost GI immunities to prevent digestive infections such as traveler’s diarrhea*

• Helps manage the symptoms of irritable bowel syndrome*

• Helps support optimal absorption of food nutrients and energy metabolism*

• Helps support healthy skin conditions*

Who Should Use this Product?

PB Assist is formulated for use by all members of the family desiring supplemental probiotic support of intestinal microflora. PB Assist is an excellent product for individuals on or completing antibiotic therapy, or who suffer from chronic digestive discomfort. PB Assist is an excellent addition to dōTERRA’s monthly Lifelong Wellness supplement program of Alpha CRS™, EO Mega™, and Microplex VM™.

Supplement Facts

PB Assist Facts

Directions for Use

Take 1 - 3 capsules with meals.


Pregnant or lactating women, and people with known medical conditions should consult with a physician prior to taking supplements. Does not contain wheat or milk products.


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

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Recommended Usage




Everyday Example by Robert James


Diet and Nutrition great complements to essential oils


Science and Research what the research is saying

Editor’s note:    We asked Rob Young, vice president of doTerra about the effectiveness of PB Assist and the fact that other products claim a higher bacteria colony count. His reply follows:

There are a number of products for sale that have much higher CFUs on the label than the billion in PB Assist, but the key is how many CFUs actually make it to the site of action in the gut. You also have to consider how many of the CFUs survive the manufacturing, packaging, shipping, shelf, and storage of the product.

The friendly bacteria in probiotics are "alive" and can "die" very easily if exposed to air, heat, and moisture. So purchasing a fresh probiotic product off the shelf is an important consideration. But by far the biggest issue is survival of the bacteria in your stomach. One of the primary functions of your caustic stomach acids is to kill the bacteria you get via your mouth. Most probiotic supplements with billions of CFUs on the label are hoping that enough can survive the acidic environment of the stomach to make it to the gut. Most if not all of the bacteria is killed, thus the hundreds of billions of CFUs hoping some will survive.

PB Assist is unique in that it has a triple-layer enteric coating that protects the CFUs both in manufacturing and in your stomach. The capsule opens in your gut at the site of action so the bacteria can adhere in the gut. (You don't need a zillion CFUs, you just need to "seed" the bacteria colonies and they will multiple to many, many more times the CFUs you are taking in your probiotic supplement.) So with PB Assist you are delivering 1 billion CFUs to the site of adherence in the gut, while other products, although claiming billions of CFUs may never make it to the site of action.


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NOTE: The advice shared in this site has not been evaluated by the FDA. The products and methods recommended are not intended to diagnose, treat, cure or prevent any illness or disease, nor is it intended to replace proper medical help. As members offer or look for answers, kindly understand that essential oils work to help to bring the body into balance - thus helping the body's natural defenses to restore homeostasis. Essential oils are not used to "treat" medical problems.