First Time Customer? Sign up for your special offer!

Free shipping on US orders over $50

(888) 679 5520

To see our FAQs regarding Covid-19, click here.

Probiotic Complex

A comprehensive multi-strain probiotic blend to give you maximum results

Probiotic Complex

A comprehensive multi-strain probiotic blend to give you maximum results

A healthy body begins with a healthy gut — rich with “good” bacteria that allow your body to perform at its peak. Probiotic Complex supplies you with 15 of the most effective probiotic strains — so you can experience smoother digestion, improved energy levels, and relief from cravings.*

Made With You In Mind

MFG in
the USA

GMP Certified

Made With You In Mind

MFG in
the USA

GMP Certified

How It Works

Supports Smoother Digestion*

Smooth, comfortable digestion requires a proper balance of “good” and “bad” bacteria in your gut. Our painstakingly perfected blend of 15 powerhouse probiotic strains delivers a whopping 30 billion Colony Forming Units (CFUs) in every capsule — which quickly go to work resetting the balance in your gut.

Promotes Weight Management*

Some of the probiotics in our formula, such as Lactobacillus rhamnosus and Lactobacillus paracasei, have also been linked to improved weight management and reductions in fat storage.

Reduces Gas & Bloating*

Fiber and other difficult-to-digest foods can cause embarrassing and uncomfortable issues like gas and bloating. Probiotics thrive on fiber, and can help reduce these unwanted digestive after-effects.

*All individuals are unique. Your results can and will vary.

Learn More

Why is Nucific Probiotic Complex different than other probiotics on the market?

Nucific Probiotic Complex is one of the most powerful probiotics on the market, and also one of the most diverse. Not only is each capsule filled with 30 billion CFUs of good bacteria, but each capsule contains 15 different strains of probiotics.

Nucific Probiotic Complex even contains bile and acid resistant strains to ensure that the good bacteria thrive in your system.

What are the ingredients in Nucific Probiotic Complex?

Who should use Nucific Probiotic Complex?

One of the best things about Nucific Probiotic Complex is that everyone can benefit from the power of probiotics. Whether you want to lose weight, improve your digestion, or just have better energy and focus, Probiotic Complex can make a difference.

Given the prevalence of added sugars and artificial sweeteners and unnatural additives in the American diet, Nucific Probiotic Complex can help anyone digest more efficiently and get more from the food they eat.

How does Nucific Probiotic Complex work?

Your digestive system is home to billions of unique strains of bacteria, some of which help your system, and some of which don’t. When the bad bacteria in your body begin to outnumber the good, your digestive system is thrown off balance, and any number of digestive issues can arise.

Because Nucific Probiotic Complex is packed with 30 billion CFU’s (colony forming units) of good bacteria, it is designed to help your digestive system swing back into balance and counteract the effects of bad bacteria.

How do I use Nucific Probiotic Complex?

To make the most of your probiotic routine, take one pill each day with a full glass of water. For best results take before or during the first meal of your day.

Does Nucific Probiotic Complex need to be refrigerated?

No- while many probiotics require refrigeration to keep the strains alive, Nucific Probiotic Complex is preserved using a flash-freezing technique that keeps it fresh – no refrigerator required. This means that Nucific Probiotic Complex can be kept for months, or even YEARS and still be effective.

Does Nucific Probiotic Complex work for everyone?

As with any product, there are a select few people who don’t experience the wonderful effects of Nucific’s Probiotic Complex. If you’re one of the select few, or if you’re not happy with Nucific Probiotic Complex for any reason, we offer a 90-Day Money Back Guarantee. If you’re unhappy for any reason, get in touch with our friendly customer service team and we’ll make sure to return your investment.

Suggested Use

Take 1 capsule each day with a full glass of water, preferably just before your first meal of the day.


4.6 51 Reviews


Aug 22 2020

Excellent Probiotic

Sometimes it is hard to recommend a specific probiotic to my patients. The high quality control and research behind Dr. Amy Lee‘s products make it easy for me to recommend the Nucific version without any reservations.


Aug 7 2020

great digestive support

My husband and I have been using Bio X4 for sooo many months and decided to give this probiotic complex a try!! We are quite happy with the way we feel after a heavy meal or a fried chicken dinner like meal. Usually we will feel a bit uncomfortable and the next morning too we would feel a bit horrible. But I guess this complex reduces that feeling. Also yes there is a reduction of bloating. Unable to say any thing about weight management yet. We just started this one month ago! Overall it definitely provides a good sense of relief to manage after-meal difficulties and uncomfy tummy issues.


Jul 30 2020

First Month

Just finished my first month of probiotics. My stomach is less bloated and makes a lot less gurgles in the morning.


Jun 30 2020

Probiotic Complex

This has been only the third week since I started. It really works! Constipation has been the major issue in my whole life. I started to give the product to my husband […] I hope it continues to work for both of us.


Jun 13 2020

Love it!

I have only been taking Bio-X4 for a month and I have noticed a difference. I am a major sceptic when it comes to stuff like this. Magic pills and drinks and only for this low price. But Doctor Lee explains why we struggle with our weight and what natural things can help us get in control. She doesn’t preach about a wonder pill to get thin quickly, but a better way to help take care of your body. And it works. I don’t crave food constantly or am tempted to eat the leftover snacks that sit about at work. I’m eating smaller portions because I’m not as hungry. And I’ve noticed a decrease in the size of my stomach. I don’t have to worry about calorie count or going over my limit for the day. I can take Bio-X4 and know my body is getting the support it needs to work as it should.


Jun 9 2020


HI This is the second time using your Bio-X4 and it has been amazing how remarkable my digestion is when I use it. The first time I did not realize that it was the reason my digestion was so damn good. Thank you.


May 30 2020

Probiotic complex


Probiotic complex has helped me feel so much better. My tummy is so much happier, I have more energy. Thank you Dr Amy.


May 16 2020

Lovin’ it!


I love Nucific products and the Probiotic Complex is no different. It keeps my gut flora balanced and my digestion on track. I couldn’t ask for more! You will be pleased if you decide to purchase.


May 6 2020

Digestion never felt so good


This product is really a game changer. The digestion of food has actually been a pleasurable experience. My gut has never felt so good. This product also helps you to process and eliminate old food that’s been stuck in your stomach for a while.


Apr 25 2020

Probiotic Complex

I’ve only been using for a month but do feel a little better and can only relate it to using these probiotics. I’m hoping with continued use that I will feel better!! Thank you!!

1 2 3 6
4.6 out of 5
4.6 OUT OF 5

1 2 3 4 5

Please click on your star rating.
Please enter your name as you wish it to be displayed.
Please enter and verify your email address.
Please enter a subject or title for your review.
Please enter your comments.

Your review must be at least 25 characters.