High Performance Multivitamin

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Microcore is a science-based vitamin/mineral complex providing the key micronutrients hard-training lifters need for optimal health and performance. Rather than delivering an endless list of cheap, under-dosed and often unnecessary ingredients like most traditional multis do, Microcore focuses on the highest quality forms and proper doses of only the select vitamins and minerals you truly require.

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Are Your Micronutrient Levels Optimized?

In order for your body to build muscle, lose fat and achieve optimal health and performance, it must be provided with a wide array of individual vitamins and minerals every day.

In fact, being deficient in even a single micronutrient can literally affect thousands of different biological processes related to overall health and body composition.

This is an especially important issue for hard-training lifters and athletes, since they typically have higher vitamin and mineral requirements than the average sedentary person.

Certain micronutrients are drained from the body as a result of intense training, and some can also provide additional fitness-related benefits when consumed in slightly higher amounts.

To cover up any potential nutrient deficiencies and fully optimize vitamin and mineral intake, most lifters include a basic multivitamin as a staple in their supplement plan.

While it may seem like a no-brainer on paper, the truth is that nearly all standard multis out there – those that simply provide a long and disorganized list of every single vitamin and mineral available – are far from the best choice.

There are two major reasons for this…

The 2 Major Problems With Most Average Multivitamins.

Problem #1: Low Dosages & Inferior Quality Forms.

The label on your multivitamin might look impressive because of all the various ingredients included, but dive a bit deeper and there’s an almost certain chance that you aren’t getting the proper dosage of each one.

Supplement companies know that the average consumer is mainly just responding to the marketing behind the product (rather than actually researching all the ingredients in detail), so intentionally under-dosing their formulas is an easy way to cut down production costs.

They make more money on each bottle… you get a product that may be providing little to no real benefit at all.

For example, if your multivitamin only provides 50mg of magnesium as opposed to the optimal 200-400mg dose… or 200IU of Vitamin D as opposed to 2000IU… you’ll only be receiving a small fraction of the benefits these micronutrients truly have to offer.

Not only that, but to further save on costs, most typical multis also use the cheapest and lowest quality forms of some (if not all) of the various vitamins and minerals.

It’s critical to understand that not all micronutrient forms are created equally.

Some are readily absorbed by the body in high amounts, while others are simply “flushed out” and barely utilized at all.

If you’re getting zinc oxide rather than a higher quality form such as zinc citrate, or vitamin B12 as cyanocobalamin rather than methylcobalamin (these are just two of many examples), most of that multivitamin tablet or capsule will simply be going to waste.

Problem #2: Multiple Unnecessary Ingredients.

While a “full spectrum” multivitamin seems great in theory, the reality is that you don’t actually need to be supplementing with every single vitamin and mineral in the first place.

Just because one particular micronutrient has supplemental benefits doesn’t automatically mean that every micronutrient does.

Each vitamin and mineral has different effects within the body… different applications for lifters and athletes… and can be more easily or less easily obtained in sufficient amounts from regular food.

If you’re already eating a reasonably healthy diet to support your fitness goals, a good percentage of your micronutrient needs are being covered as is.

Not only does this make supplementing with certain vitamins and minerals unnecessary from a cost perspective, but going too high on certain ones can even be detrimental to your health.

For example, getting enough vitamin A, C and E from regular food each day is typically not a problem for most people as long as they’re eating a reasonably varied diet.

Going significantly above the RDA on these vitamins likely isn’t going to benefit you, and some evidence even suggests that it can have a negative impact on training adaptations and increase mortality rates in the long term. [1-7]

Most typical multis also throw in various mineral compounds that are already present in your normal diet in easily obtainable amounts, such as chromium, iodine, selenium, copper, phosphorus, manganese and more.

Unless you have a specific reason to do so, there’s just no need to be haphazardly putting more of these minerals into your body.

Excessive selenium, for example, can increase the risk of developing type-2 diabetes, while high levels of copper have been associated with the onset and symptoms of Alzheimer’s disease. [8-11]

Bottom line?

Most typical multivitamins provide a long list of micronutrients you don’t even need in the first place (including some that are potentially dangerous), and the ones you do need are typically under-dosed and delivered in low quality forms your body can hardly absorb.

The solution?


Microcore™: The Key Vitamins & Minerals
Hard-Training Lifters Need, Delivered In Their Full Clinical Dosages And Highest Quality Forms.

bodybuilding multivitamin

As someone who trains hard in the gym and is serious about their results, you’re already eating a reasonably varied diet that automatically provides more than enough of many individual micronutrients.

Supplementing with additional amounts of these vitamins and minerals is not only unnecessary and expensive, but it could be potentially harmful as well.

Microcore focuses on the select few micronutrients that are harder to obtain in optimal amounts from regular food and that have specific health/performance benefits when taken in slightly higher amounts.

The result is a simpler and more straightforward, yet more effective multivitamin you can trust to support your health and fitness goals.

A few of the potential benefits associated with maintaining optimal micronutrient intake include:

  • Better physical performance and recovery.
  • Increased energy levels and motivation.
  • Improved mood and mental clarity.
  • Deeper, more restful sleep.
  • Optimized hormone production/libido.
  • Stronger immune system function.
  • Better heart health and cholesterol profile.
  • Improved digestion and detoxification.
  • Enhanced insulin sensitivity.
  • Increased bone health.
  • Greater longevity.

We spent endless hours scouring the research to determine exactly which compounds were needed to cover these targets, along with their proper clinical dosages, safety profiles and most highly absorbable forms.

We also configured the vitamin/mineral ratios in each serving to provide a baseline dosage (2 tablets per day), medium dosage (3 tablets per day) and upper dosage (4 tablets per day) so you can easily tailor the amounts based on your own personal micronutrient needs.

A “one-size-fits-all” approach is never ideal, since vitamin and mineral requirements vary depending on factors such as lean body mass, calorie intake, activity level and dietary variety.

Here’s a step by step breakdown of the individual Microcore ingredients along with the specific benefits and scientific support for each one…

Real Science, Real Results:
Complete Microcore™ Ingredient Breakdown

Vitamin D

vitamin d

If there’s one single micronutrient out there that you should probably be supplementing with, vitamin D would be it.

Its overall health and fitness benefits are extremely lengthy, including strengthening the immune system, boosting cognitive function, improving mood and well-being, optimizing testosterone levels and increasing muscular strength and performance. [12-19]

However, unless you live in a warm climate and spend multiple hours a day outside in the sun, there’s a very good chance that your Vitamin D levels fall below the optimal range. [20-22]

In fact, some research indicates that as high as 25-42% of the population may be at risk for vitamin D deficiency. [23]

Although the current RDA is set at just 600IU daily, most vitamin D research specialists agree that this figure is far too low and that 1500-2000IU is the more appropriate amount for those above the age of 18. [24-27]

The risk of vitamin D toxicity is also very low, with some experts identifying as high as 10,000IU to be the safe upper limit in otherwise healthy individuals. [28]

1 serving of Microcore (2-4 tablets) provides 1500IU-3000IU of Vitamin D in the bio-available cholecalciferol form.


Magnesium is a co-factor in hundreds of important processes in the body and plays a key role in maintaining optimal energy production, heart health, digestion, detoxification, bone strength, mood and more.

Of specific importance to those following a muscle building and fat loss program are its effects on keeping testosterone and IGF-1 levels elevated, as well as improving muscular performance and sleep quality. [29-36]

Since magnesium is depleted from the body through sweat, those who regularly perform intensive weight training, cardio and other physical activities tend to have lower levels that can be improved through supplementation. [37-38]

Although many standard multivitamins do include magnesium in their formulas, it’s often dosed at a fraction of the recommended 200-400mg intake and/or is present in a cheaper, lower quality form such as magnesium oxide. [39-40]

1 serving of Microcore (2-4 tablets) provides 200-400mg of Magnesium in the bio-available citrate form.



Just like magnesium, zinc is also an important mineral involved in testosterone production and immunity (along with hundreds of other processes related to overall health) and is drained from the body through sweating. [41-43]

Several studies have shown that hard-training athletes are at risk for impaired zinc status, increasing the need for additional supplementation to prevent a potential deficiency. [44-46]

Although zinc oxide is a commonly used form in many popular multivitamins due to its low cost, its bio-availability in humans is quite low to where only a minimal amount may actually be absorbed. [47]

1 serving of Microcore (2-4 tablets) provides 15-30mg of Zinc in the bio-available citrate form.

Vitamin B Complex

vitamin b

The B Vitamins include B1 (thiamin), B2 (riboflavin), B3 (niacin), B5 (pantothenic acid), B6 (pyridoxine), B7 (biotin), B9 (folate) and B12 (cobalamin).

They play a critical role in converting food into usable energy and aid in an endless number of important biological processes related to the immune system, hormone production, cognition, growth/repair of cells and much more.

Although they can be found in abundance in whole foods, some data suggests that intense physical activity increases B vitamin requirements and that some athletes may have less than optimal levels. [48-57]

Given the possibility of an additional health/performance benefit and the minimal impact on cost, we decided to add a basic B Complex into the formula to ensure that all your bases are fully covered while still staying well within safe limits.

1 serving of Microcore (2-4 tablets) provides a research-supported dose of all 8 B Vitamins in their highest quality forms. (See label for details)

Vitamin K

vitamin k

Vitamin K is an often overlooked yet highly valuable compound that refers to two different structures known as phylloquinones (K1) and menaquinones (K2).

Although the standard RDA (75mcg) is sufficient for basic health, research has shown that higher amounts of Vitamin K above this level provide dose-dependent benefits for cardiovascular health, bone strength, insulin sensitivity and overall longevity. [58-62]

Obtaining these levels through food alone is often very difficult (unless you regularly eat fermented soy), making additional supplementation a smart option for both gym-goers and sedentary individuals alike. [63-65]

The risk of Vitamin K toxicity is practically non-existent, with amounts as high as 45,000mcg being demonstrated as safe over the long term. [66]

1 serving of Microcore (2-4 tablets) provides 250-500mcg of Vitamin K1 (as phytonadione) and 90-180mcg of Vitamin K2 (as MK-7) per serving.

Microcore™: The Bottom Line

If you’re looking to build muscle, lose fat, gain strength and optimize your overall health and well-being, maintaining proper micronutrient intake is critical.

Microcore delivers a pharmaceutical grade, research-supported dose of the most important vitamins and minerals for hard-training lifters, all in their most bio-available forms for maximum absorption.

Rather than throwing in an endless list of cheap, under-dosed, unnecessary and possibly even dangerous ingredients like most standard multis do, Microcore puts all of the focus on quality (not quantity) by providing the exact micronutrients you need and discarding all the useless filler.

The end result is a premium quality, scientifically-sound multivitamin to safely and effectively support your health and fitness goals.

Hit the “Add To Cart” button above to get your supply of Microcore today.

Your order will be shipped out either today or the following business day. We ship our products worldwide, so you can order Microcore no matter what country you’re from. (Microcore is not sold in stores and can only be purchased online through our secure website.)

If you have any questions prior to ordering, just fill out the contact form below and we’ll get back to you as soon as possible.


Your results are our #1 priority. That’s why you’ll only pay for our products if you’re 100% satisfied with them.

If you purchase a RealScience supplement and are unhappy with it for any reason, just let us know and we’ll promptly refund your entire purchase.

You don’t even need to go through the hassle of returning the item to us. You can simply keep the product, and we part as friends.

Very few companies will offer a guarantee like this, but we truly value our customers and know that the quality and effectiveness of our supplements stands on its own.

(To protect ourselves from people abusing the refund policy, this guarantee applies to first-time purchases made within 3 months and is valid on a single bottle of each product. If you purchased more than one bottle and would like a complete refund then it’s required that the additional units be sent back to us so we can re-add them to our inventory.)

Suggested Use

Take 2-4 Tablets daily with food, ideally split into two separate doses.


Not intended for persons under the age of 18. Consult a physician prior to consumption if you have any existing medical conditions and/or are taking any prescription medications. Do not use if pregnant or nursing. Immediately discontinue use and consult a health care professional if you experience any adverse side effects.  Do not exceed recommended serving. Discontinue use 2 weeks prior to surgery. Do not use If safety seal ls broken or missing. Store In a cool, dry place. KEEP OUT OF REACH OF CHILDREN
These statements have not been evaluated by the Food and Drug Administration. This product is not intended to diagnose, treat, cure or prevent any disease.

Frequently Asked Questions

I’ve heard from many sources that multivitamins are unnecessary. What gives?

If we’re talking about most “traditional” multis that include a laundry-list of every single vitamin and mineral available randomly mashed together into a single formula, then we completely agree that these are unnecessary.

As long as you’re eating a half-decent diet with reasonable food variety throughout the day, a good portion of your micronutrient needs are already being met, making additional supplementation unnecessary.

That said, there are several micronutrients that are much more difficult to consume in optimal amounts from regular whole food and/or whose requirements are increased as a result of intense physical exercise.

For example, magnesium and zinc are drained from the body through sweat.

Vitamin D is primarily obtained through direct sunlight, which most people don’t get enough of.

Vitamin K2 is only found in high amounts in fermented soy.

This is where Microcore places its focus by providing only the select few vitamins and minerals you truly need, in their proper clinical doses and most bio-available forms.

What specific effects will I feel by taking Microcore?

Some benefits of Microcore can be directly “felt”, while others provide overall long-term health benefits that work more “beneath the hood” and won’t be quite as obvious.

Examples of benefits that you may directly feel include improvements in mood and well-being, increased energy, mental clarity, better sleep and improved libido.

Just how strongly these effects are experienced largely depends on your individual micronutrient levels prior to supplementation. If a particular vitamin or mineral in Microcore helps to correct a significant deficiency you may have had, the benefits will be more noticeable.

Examples of health benefits that you won’t necessarily “feel” but may experience symptoms of longer term include stronger immune function, heart health, bone health, hormone production and insulin sensitivity.

Some of the dosages are quite a bit higher than the standard RDA. Why is that?

While the RDA can provide a useful guideline for the maintenance of basic overall health, going above the RDA in certain cases (while still remaining within safe limits) can produce additional dose-dependent benefits that the RDA alone won’t provide.

A good example of this is Vitamin K. Although 75mcg daily is sufficient to prevent a deficiency, going significantly higher than this (Microcore contains up to 680mcg per serving) directly improves bone strength and cardiovascular health while still staying well within the known safe limit of 45,000mcg.

Some RDA’s are also currently set at levels that are likely too low for optimal health.

For example, the current RDA for Vitamin D is only 600IU, while many experts who specialize in Vitamin D research agree that 1500-2000IU is the more appropriate minimum figure.

In addition, hard-training lifters and athletes often have higher micronutrient requirements than the average person since certain vitamins and minerals (for example, magnesium, zinc and b vitamins) are drained from the body as a result of intense exercise.

Don’t several of the vitamins/minerals compete for absorption when taken at the same time?

Although zinc and magnesium technically do utilize the same transporter, they only “compete” for absorption at higher combined intakes of 800mg or more.

The highest dose of Microcore (4 tablets daily) provides 400mg of magnesium and 30mg of zinc, well below the 800mg limit.

I already eat a healthy diet with plenty of variety. Will Microcore benefit me?

Microcore has been formulated to provide the specific vitamins and minerals that are the most difficult to obtain in optimal amounts from regular whole food and that hard-training lifters require the most.

For example, vitamin D is only found in whole foods in very small amounts and must either be obtained through direct sunlight or in supplemental form.

Vitamin K2 would be another example. Unless you regularly eat an uncommon food source known as “natto” (fermented soy), additional supplementation can provide dose-dependent benefits.

While Microcore will certainly provide the greatest benefit to those with a less micronutrient rich diet, even those who are already eating quite “healthy” can still use it to ensure that all of their vitamin/mineral levels are fully optimized.

Why is there no vitamin A, vitamin C or vitamin E included?

Most people eating a typical Western diet already meet their requirements for these vitamins quite easily.

Vitamin A, C and E are not only unnecessary from a cost perspective in most cases, but some evidence even suggests that there may be negative health effects associated with high dose supplementation of these antioxidants over the long term. [1-7]

So, unless you have a specific reason for consuming additional vitamin A, C or E, including them in a multivitamin is at best a waste of money and at worst potentially harmful.

Why is there no calcium included?

Daily calcium intakes can vary quite a bit from person to person, primarily depending on whether or not they consume dairy products.

Those who regularly eat foods such as yogurt, milk, cheese or whey protein likely get more than enough calcium from their diet, while those who exclude dairy may benefit from supplementation.

Due to this significant dietary variance, calcium is best supplemented with on an “as needed” basis only if it’s required to help an individual meet the recommended intake of about 1000mg daily.

Several other common minerals seem to be excluded as well. Why?

Although other minerals such as chromium, iodine, phosphorus, selenium, copper, manganese etc. are commonly found in most traditional multis, the average person already obtains enough of them through their regular diet rendering additional supplementation unnecessary and potentially unsafe.

Excessive selenium, for example, can increase the risk of developing type-2 diabetes, while high levels of copper have been associated with the onset and symptoms of Alzheimer’s disease. [8-11]

Just because you should be supplementing with one particular micronutrient doesn’t automatically mean that you should be supplementing with every micronutrient.

Microcore focuses only on the specific vitamins and minerals that hard-training lifters truly require and discards all of the unnecessary extras.

How do I know that Microcore doesn't include any cheap fillers or hidden ingredients like other companies have been found using?

Product safety and control is a top priority, and that’s why we only manufacture our supplements in cGMP/NSF certified USA-based facilities. This is the most widely-respected global third-party certification provider for supplement production.

It costs a bit more on our end to go this route, but guarantees that you’re getting the purest ingredients and highest quality processing available.

What is the best way to supplement with Microcore in terms of dosage and timing?

Microcore should be supplemented with on a daily basis at 2-4 tablets per day. This should ideally be split into two dosages taken in the morning and afternoon with food.

Whether you go with the baseline dosage (2 tablets), medium dosage (3 tablets) or upper dosage (4 tablets) depends on your individual micronutrient needs.

Every person is different and has higher or lower requirements depending on a variety of factors, including:

Body Weight: Heavier individuals carrying more total lean body mass will generally have higher needs than lighter individuals.

Calorie Intake: Eating in a calorie deficit for fat loss would increase the need for micronutrient supplementation in comparison to eating at maintenance or in a surplus.

Activity Level: Those who are more active throughout the week (including weight training, cardio and any other strenuous activities) would likely benefit from a higher dosage.

Dietary Variety: If you tend to eat a smaller variety of foods throughout the day (especially if your fruit/vegetable intake is fairly low) then your vitamin/mineral requirements would increase.

Use a combination of the above factors to decide which specific dosage to follow.

If you’re unsure, just go with the middle-ground dosage of 3 tablets per day.

How large are the tablets?

Don’t worry, these are not massive “horse pills” like you get with many other multivitamin products. Microcore is delivered in a small sized caplet and contains an outer coating to allow for easy swallowing.

Are there any side effects I should know about?

All of the ingredients in Microcore are present in research-supported dosages that have been shown to be safe for both short and long-term use.

However, if you have any pre-existing health conditions or are currently using any prescription medication, you should consult your doctor first before supplementing with Microcore.

Those using the prescription medication Warfarin should avoid Microcore due to interactions with Vitamin K.

Can women use Microcore?

Yes, both men and women can benefit equally from Microcore.

The only factor to consider is that since micronutrient needs depend partly on body weight, females on the lighter side are usually best to go with the lower baseline dosage of 2 tablets daily.

Is Microcore gluten-free?


Is Microcore vegetarian?


Is Microcore vegan?

No. One of the ingredients in Microcore (Vitamin D3) is derived from animal sources, as is the coating used for the tablets.


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    Verified Customer Reviews


    Based on 40 Reviews
    1. B

      Brandon M. (verified buyer)

      Microcore is the Real Deal

      Always been skeptical and weary of multivitamins. I’ve used the one-a-day brand and other store-bought stuff in the past and it did basically nothing for me. I thought I’d try this as I was worried about vitamin D during the winter and such. After a month of supplementation, the physiological changes have been drastic. I feel as if I’ve increased my IQ by 5 points, my mood is slightly more stabilized, and energy and sleep are greater than before. When determining if I can attribute these changes to specifically this product, or if it is placebo / other factors, I can safely say that this was really the only diet / supplement change I have made as recent. It’s not like this turned my life around because I was already decently healthy, but the improvement that it brought FAR surpassed what I initially speculated it would do. In short, this supplement has done exactly what I have EXPECTED store brand vitamins to do in the past. One thing however, is that it is very potent and the dosages are NOT skimped out on. It recommends two tablets, but being only 132 pounds myself, I’ve found that two tablets turn my urine neon-green (a sign of excess nutrients unused by the body). So if you’re small enough, 1 tablet or even 1 and a half may be sufficient for you in my opinion. Cannot recommend enough. This is the real deal and a solid product to incorporate into you diet and supplementation regiment ESPECIALLY if you are dieting. Thanks Sean!

    2. B

      Branden . (verified buyer)


      Love the detail put into explaining exactly wat is put into these vitamins and how they can benefit you, I have experienced improvement in my recovery and energy since I started taking this, amazing product.

    3. A

      Aman .


      I have just received my two bottles, let’s see the result.

    4. E

      Eileen E. (verified buyer)

      Perfect Vitamin

      I eat healthy and exercise almost daily, lifting and cardio and I’ve noticed a difference since using my first bottle. I feel better, more energy and quicker recovery while my friends are always sore. I always recommend and will continue to use Microcore daily. Why didn’t I find out about these vitamins sooner!

    5. E

      Eduard L. (verified buyer)

      I Believe in Sean's Training therefore I believe in his products, too

      I have been using Sean’s MicroCore for over a year now and there’s definitely a difference in my body and energy. I think taking this supplement consistently is key.

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