Shield is a new immune booster supplement from Dr. Sears’ private label brand, Primal Force.
Available exclusively online, Primal Force Shield uses natural, proven immune boosters to support your body’s ability to defend itself.
In our review, you can learn everything about Primal Force Shield and how it works today.
What is Primal Force Shield?
Primal Force Shield is an immune support supplement that was created by medical doctor Al Sears.
You can purportedly support your body’s natural immunity using natural ingredients by spraying Primal Force Shield into your mouth daily.
According to the official website, Primal Force Shield's telomere technology could “triple your immune cells ” in as little as eight hours.
Primal Force Shield is exclusively sold through PrimalForce.net. As part of a 2024 promotion, you can get three bottles of Primal Force Shield for the price of two and receive four free bonus reports.
Primal Force Shield Benefits
Primal Force Shield aims to support immune function using natural ingredients. Here are some of the benefits of the formula:
- Promote innate immune function
- Develop “shield immunity” to support your body’s frontlines
- Support immune cells, white blood cells, and your overall immune system
- Natural, science-backed ingredients
- Created by Dr. Al Sears, MD
- 90-day satisfaction guarantee
How Does Primal Force Shield Work?
Primal Force Shield uses a blend of natural ingredients to promote immune function.
The individual ingredients in Primal Force Shield target different areas of immune function. Some ingredients target white blood cells, for example, while others support healthy inflammation, making it easier for your immune system to function.
The overarching goal of Primal Force Shield is to help you develop “shield immunity.” Here’s how Dr. Al Sears, MD, creator of Primal Force Shield, explains the benefits of shield immunity:
“…you can achieve lasting support for a robust immune response. And it’s already inside your cells. Laying dormant…waiting to unleash your body’s total immune power…I call this – shield immunity.”
Shield immunity could give you the immune function of a younger person. Dr. Sears claims his treatment methods have helped his patients, on average, achieve an immune age of 13 years younger. A younger immune system is better able to defend your body.
To activate these effects, just spray Primal Force Shield into your mouth. The ingredients go to work immediately to promote immune function. According to Dr. Sears, one of the ingredients could even triple immune cells within eight hours.
Primal Force Shield Targets “T Cells” for Innate Immunity
There are different ways to boost your immune system.
You can take vaccines, for example, or supplements that target macrophages, beta cells, or antibodies.
Primal Force Shield, however, targets a specific type of immune cell called T cells.
Here’s how T cells work – and why they’re so crucial for immunity:
T cells are the primary cells in charge of your immune system. Dr. Sears describes them as “the master commander of all your immune operations” or the “brains” of your immune system.
If your T cells are malfunctioning, your immune system will malfunction. Poor T cell activity means you don’t have a good “immune shield” protecting your body.
You’re born with good T cells. When growing, your T cells swam unwanted invaders, defending your body against attackers.
As you age, your T cells remember your old battle plans. They remember how you fought against previous attackers, helping to continue defending your body into the future. Dr. Sears describes them as ” wise veterans for your immune system.”
Every day, your T cells continue to coordinate a response to invading pathogens. They tell your immune system where to go, how to defend itself, and how to stay safe.
However, As you get older, your T cells begin to lose effectiveness. Your immune shield diminishes with age. Your body no longer produces new T cells as frequently, dropping production as much as 90%, leaving fewer and fewer aging T cells to do most of the work.
By taking Primal Force Shield daily, you can purportedly support the production of natural, young T cells.
Primal Force Shield Restores Telomere Length in T Cells
Primal Force Shield works by promoting telomere length in T cells.
If that sentence doesn’t make sense, then that’s okay: telomeres are a part of your DNA, protecting your DNA as you age.
When you get older, your telomeres shorten, leading to noticeable symptoms of aging.
Every cell in your body has DNA, so shortened telomeres can impact every area of your body – including your immune system.
Dr. Sears specifically designed Primal Force Shield to target an enzyme called telomerase, which is linked to longer telomeres. By promoting telomerase activity, Primal Force Shield can promote telomere length in T cells, boosting immune function at the cellular level.
Here’s how Dr. Sears explains the effects of Primal Force Shield on telomeres:
“…telomerase is also found in your T Cells. It promotes telomere length in T cells the same way it does in heart cells, muscle cells, brain cells…that’s why it can undo years of immune aging by restoring telomere length in T cells.”
By spraying Primal Force Shield into your mouth daily, you can promote telomerase activity to support longer, healthier telomeres, boosting immune function.
Primal Force Shield Ingredients
We’ve explained how Primal Force Shield interacts with telomerase, telomeres, and T cells to promote immune function. But what’s actually inside Primal Force Shield?
Here are all eight of the active ingredients in Primal Force Shield and how they work:
Astragalus: Dr. Sears describes astragalus, a plant extract grown worldwide, as “an immune system miracle like no other.” It’s been used for centuries in natural remedies, but recent evidence has connected astragalus to significant effects on health and wellness. For example, Dr. Sears cites studies showing that taking 50 to 200mg of astragalus daily promotes T cell activity, telomere length, and overall immune function.
Astragalus is particularly popular in traditional Chinese medicine, but it’s also used throughout Japan, South Korea, Taiwan, and other parts of East Asia. Today, studies from NIH, UCLA, Johns Hopkins, Sloan Kettering, and other institutions have linked astragalus to significant effects on immune function. In one study, participants experienced a boost in telomerase activity within 72 hours of taking astragalus.
Cat’s Claw and Persaten: Dr. Sears specifically added these two plant extracts to Primal Force Shield because they’re rich in flavonoids. Flavonoids are plant-based antioxidants linked to immune function. Like other antioxidants, flavonoids support healthy inflammation throughout the body. When your body is overly inflamed, it’s hard for your immune system to do its job. Your immune system uses inflammation to fight foreign invaders, sending healing compounds (via blood) to the targeted area and creating temporary inflammation.
When this inflammation becomes chronic, however, it means your immune system isn’t able to do its job. Primal Force Shield uses plants called cat’s claw and quercetin, a natural antioxidant from a plant called persaten, to promote immune function.
However, people with autoimmune conditions should avoid using cat's claw because it could overstimulate their immune system.
Camu Camu: Camu camu is a fruit native to the Amazon rainforest. Like other ingredients in Primal Force Shield, it has a record of being used in traditional medicine. Today, studies find camu camu works because it’s packed with powerful antioxidative and anti-inflammatory activities than the daily dose of 1500 mg of vitamin C. However, the contents of vitamin C are equal. Vitamin C appears to be one of the world’s best natural sources of vitamin C, carrying more vitamin C by weight than many other fruits and foods.
Acai Berry: Primal Force Shield contains another popular South American fruit: acai berry. Like camu camu, acai berry is packed with vitamin C. It’s one of the most antioxidant-rich fruits in the world. It has more natural antioxidants than blueberries, blackberries, raspberries, and strawberries, which is why some consider acai a super fruit. These natural antioxidants could support immune function, making it easier for your immune system to do its job.
CyanthOx™: Primal Force Shield contains CyanthOx, a proprietary type of sea buckthorn extract. Sea buckthorn is a patented and clinically tested 300:1 extract of sea buckthorn, an antioxidant-rich seaweed. CyanthOx gives you a concentrated version of the seaweed maximized for its bioactive antioxidants. Primal Force Shield is legendary for its antioxidant effects. Dr. Sears claims, “It’s the most powerful antioxidant extract in the world.” It outperforms many land-based berries, helping to support immune function and protect the body against free radicals.
Maca Root: Maca root promotes oxygen flow throughout the body. Maca is found in the high altitudes of the Andes Mountains of South America, where it has a long history of being used as a natural energy booster and aphrodisiac. The root has evolved to survive at high altitudes and thrives at 12,000 feet and higher – an altitude where few other things grow. Maca produces enzymes to help maximize your body’s energy use to survive at these altitudes. Maca root gets more value from oxygen than plants at lower altitudes, helping them survive and thrive. By taking maca root daily, according to Dr. Sears, “it can do the same thing for you,” promoting vasodilation and nitric oxide to help oxygen flow throughout your body.
Cordyceps: Cordyceps, like maca, thrives at high altitudes. Native to the Himalayas, cordyceps grows on the slopes of some of the world’s highest mountains. Over millions of years, cordyceps have developed defense mechanisms to help them survive at high altitudes – like the ability to get more value from oxygen than ordinary mushrooms. The cordyceps in Primal Force Shield works by “boosting the oxygen-delivering capacity in your blood,” according to Dr. Sears.
Other inactive ingredients within Primal Force Shield include glycerin USP, purified water USP, and alcohol. These ingredients keep the formula stable.
Overall, the eight ingredients in Primal Force Shield include telomerase activators (like astragalus), premium quality flavonoids (like cat’s claw and persaten), natural antioxidants (like camu camu, acai berry, and CyanthOx), and oxygen boosters (like maca and cordyceps).
How to Use Primal Force Shield
- You take 10 sprays of Primal Force Shield orally, every day, to promote immune function:
- Take 10 full sprays of Primal Force Shield orally per day
- You can take Primal Force Shield all at once or throughout the day
What to Expect After Taking Shield
Dr. Sears designed Shield to be the ultimate immune booster supplement.
Here are some of the effects you could experience by taking Shield daily:
Support T Cell Immune Function: Your T cells are the most important in your immune system. They find and eliminate pathogens that directly attack the infected cells or work to activate other immune cells to fight infections. They’re the generals of your immune system, instructing your immune system where to send its “soldiers.” As you age, your body doesn’t produce as many new, young T cells as it used to, weakening your immune system’s ability to do its job. One of the primary goals of Shield is to promote T cell activity by targeting telomeres.
Keep DNA Healthy & Protect Telomeres: DNA is in every cell in the body, and telomeres protect it. As you get older, however, your telomeres shorten and decay, leading to premature aging and weakening. By taking Shield daily, you can purportedly promote healthy aging at the cellular level by targeting telomerase, an enzyme linked to longer telomeres.
Promote Antioxidant Effects: Three of the eight ingredients in Shield were explicitly chosen for their antioxidant content. Sea buckthorn, camu camu, and acai berry are three of the most antioxidant-rich berries on the planet. They’re all packed with vitamin C and other antioxidants – like proanthocyanidins. An antioxidant-rich diet is linked to better immune function. Antioxidants combat free radicals and reactive oxygen species that cause inflammation. By helping with this inflammation, these ingredients free your immune system to focus on other, more critical areas.
Support Anti-Aging Effects & Younger Biological Age: Dr. Sears is a leading anti-aging specialist. He was one of the first doctors to be board-certified in anti-aging medicine and runs an anti-aging clinic in Florida. According to Dr. Sears, his patients experienced a 13-year decrease in biological age, on average, by following his treatment protocol, which could involve taking Shield. The natural ingredients in Shield and other Primal Force supplements support anti-aging effects and a younger biological age overall.
Target Blood & Oxygen Flow: If your immune system can’t send cells to your body's targeted areas, it won’t function effectively. Your immune system needs optimal blood flow to function. Good blood flow helps to send nutrients, oxygen, and healing compounds to defend your body. Two active ingredients in Shield, including maca and cordyceps, were chosen specifically for their effects on oxygen flow. These plants thrive at high altitudes and’ve grown accustomed to getting more value from the little oxygen available. Today, those same plants can have a powerful effect on your body’s oxygen and blood flow, according to Dr. Sears.
Scientific Evidence for Primal Force Shield
Primal Force Shield uses a blend of science-backed, doctor-selected ingredients to promote immune function. Dr. Sears and his clinic have also conducted clinical trials proving that his system can do this. We’ll evaluate the science behind Primal Force Shield below.
First, the Sears Institute for Anti-Aging Medicine studied 200 telomere patients. The average “biological age” of the study group was 59. However, by the end of the treatment program, the “average biological age of the participants was 46,” suggesting their immune system “became 13 years younger,” explains Dr. Sears. Patients underwent combined therapies during the trial while taking various Primal Force supplements.
The individual ingredients in Primal Force Shield have been linked to better immune function in multiple studies, including studies cited by Dr. Al Sears. A 2023 study, for example, found sea buckthorn was packed with proanthocyanidins that helped with oxidative stress in aging mice. The proanthocyanidins, or natural antioxidants, within sea buckthorn, had significant and visible effects on mice, helping to alleviate skin aging. Shield contains sea buckthorn in the form of CyanthOx, a proprietary formula featuring concentrated antioxidants.
Some take acai daily for immune function. One study found acai specifically helped with T cell response – the same method of action discussed by Dr. Sears. In that 2011 study, researchers found the polysaccharides in acai induced myeloid cell recruitment and IL-12 production, helping to promote T cell activity and overall immune function.
Various studies have linked the remaining ingredients in Shield to immune function. A 2024 trial, for example, found cordyceps boosted immune response in healthy adults, helping to promote natural killer (NK) cell activity according to blood testing. Astragalus was shown to activate immune response in macrophages and promote overall immunoregulatory properties.
Shield uses a blend of plant-based, natural ingredients to promote immune function. By spraying Shield daily, you can enjoy a bioactive dose of these ingredients delivered directly into your bloodstream through your mouth.
Primal Force Shield Reviews: What Do Customers Say?
Primal Force Shield is backed by strong reviews from internet users and Dr. Sears’ clinic patients.
Here are some of the reviews for Primal Force Shield shared by verified users online:
One 61-year-old customer lost 20lbs, rewound his lung age to a 24-year-old, boosted his eyesight, raised his testosterone, and brought his brain age back to that of a 44-year-old after following Dr. Sears’ anti-aging protocol, which involved undergoing different therapies and taking Primal Force supplements.
One 86-year-old woman had the heart of a 100-year-old before undergoing Dr. Sears’ therapy. Two years later, she “reversed her heart age by 23 years,” and “her brain is nearly a decade younger,” according to Dr. Sears.
Dr. Sears himself undergoes his own therapy program. He claims to have “the immune system of a 20-year-old” despite being in his 60s, for example, along with a much younger heart and lungs than his biological age.
In a trial involving 200 of his patients, Dr. Sears reported an average decrease in biological age by 13 years. Patients lowered their biological age by 13 years, on average, by following Dr. Sears’ recommended anti-aging protocol.
After taking Primal Force supplements, other users report more energy, greater immune function, and better overall heart, lung, and brain health.
Overall, Shield is one of the newest members of the Primal Force catalog. However, many customers have reported positive effects from Primal Force supplements, and the supplement brand is linked to immune function, anti-aging, and energy among adults of all ages.
Primal Force Shield Pricing
Dr. Sears originally planned to price Primal Force Shield as high as $299. As part of a 2024 promotion, however, three bottles can be had for under $100.
Here’s how pricing works when you buy Primal Force Shield online today:
- 1 Bottle: $49.95 + $8.95 Shipping
- 3 Bottles: $125.95 ($41.99 Per Bottle) + Free Shipping
- 3 Bottles (Autoship Subscription): $99.95 ($33.32 Per Bottle) Every 3 Months + Free Shipping + 4 Free Bonuses
You save 33% by signing up for the VIP auto delivery program. You receive a new Primal Force Shield shipment every three months until you cancel.
- Each bottle of Primal Force Shield contains 2 fl oz (59.15mL0, or a 30-day supply (around 300 sprays).
Bonuses Included with Primal Force Shield
If you buy the 3-bottle auto-ship package of Primal Force Shield online today, you will immediately have access to four free bonus eBooks.
Those four bonus eBooks include:
Free Bonus eBook #1: Your Powerful Winter Protection Protocol: 10 Steps to Building a Native Immune Defense Shield: Written by Dr. Al Sears, this eBook lists a step-by-step way to promote immune function using simple changes. You’ll discover four nutrients to improve the effectiveness of vitamin D, for example, a Chinese herb linked to natural killer (NK) cell activity and a Tibetan mushroom that boosts lung power, among other ingredients you can use today.
Free Bonus eBook #2: Ancient Adaptogen Strengthens Immune System and Reverses Aging: This eBook, generally priced at $19.99, highlights a centuries-old Chinese herb that could transform your health today. The report explains how the plant makes your body young again at the cellular level. You’ll also learn how it defeats the four biggest threats to your health, helps with occasional fatigue, and supports healthy blood sugar and liver health, among other areas.
Free Bonus eBook #3: hTERT: Youth Rebound: hTERT is like a “grow young switch” inside your body. In this bonus eBook, Dr. Sears explains how to flick that switch using natural strategies you can implement today. You’ll learn how it can eradicate wrinkles and gray hair, for example, and even rewrite your family’s medical history. The book also features other safe, natural ways to promote anti-aging at the cellular level.
Free Bonus eBook #4: Dr. Sears’ Telomere Secrets: Dr. Sears is a big fan of using telomeres to promote anti-aging effects. Telomeres are like the “caps” on the end of a shoelace – they protect the string from harm. In this case, the “string” is your DNA. In this guide, generally priced at $19.95, Dr. Sears explains how targeting telomeres can help erase wrinkles, turn back the clock on aging, and even restore your hair to its original color. You’ll discover simple, proven strategies you can use today to promote healthy aging.
If you cancel your subscription, change your mind, or request a refund, these four bonus eBooks remain yours.
Primal Force Shield Refund Policy
Like other Primal Force supplements, Primal Force Shield has a 90-day money-back guarantee. You have 90 days from your purchase date to request a refund if you’re unsatisfied.
About Primal Force, Inc.
Shield is the latest supplement from Primal Force, a nutritional supplement brand launched by Dr. Al Sears, a Florida-based medical doctor. Dr. Sears was one of the first doctors in the world to be board-certified in anti-aging. Today, he runs a popular anti-aging clinic in Royal Palm Beach.
You can contact the Primal Force customer service team via the following:
- Phone: (866) 792-1035
- Mailing Address: 11905 Southern Blvd, Royal Palm Beach, FL 33411
Final Word
Primal Force Shield is an immune support supplement featuring a blend of natural antioxidants, oxygen boosters, and flavonoids to promote immune function.
You can support T cell activity by spraying Primal Force Shield into your mouth daily. T cells are a critical part of your immune system – they’re like the general instructing the rest of your immune system how to defend itself.
Specifically, Primal Force Shield targets telomeres on your T cells, helping to lengthen and strengthen telomeres. T cells with longer telomeres perform much better than those with shorter telomeres.
Visit the official Primal Force online store to learn more about Dr. Sears’ new Shield formula and how it works or to buy it today.