Free Shipping Above $75*

Safe & Secure Checkout

3rd party lab tested

Fast domestic shipping

Discover Zinc Defense

Zinc Defense™ is a unique bio-enhanced formulation containing clinically-backed ingredients specifically designed to support your body's adaptive and innate immune function.

L-OptiZinc™ is a unique mineral-amino acid chelate which is capable of transporting Zinc across the membrane and into the cell where it is required most. This form of Zinc is proven to have 24% better absorption than Zinc oxide.

Albion's® TRAACS® Copper Bisglycinate Chelate is paired with Zinc to create a powerful antioxidant enzyme for defense against oxidative stress while maintaining the body’s delicate Zinc-Copper balance.

Quercefit™ which is the most activated and bioavailable form of Quercetin, is proven to enhance absorption by more than 20x resulting in a higher Zinc concentration in the body’s cells thanks to its role as an ionophore (Zinc transporter).

  • 𝐙𝐈𝐍𝐂 + 𝐂𝐎𝐏𝐏𝐄𝐑 - 𝐁𝐄𝐓𝐓𝐄𝐑 𝐓𝐎𝐆𝐄𝐓𝐇𝐄𝐑: Zinc is a key player throughout your body, from supporting immunity to mood. Copper is vital for functions such as energy production and the manufacturing of various blood cells. This cutting-edge supplement provides balanced doses of both essential minerals in one convenient capsule. When combined, they develop a crucial antioxidant enzyme — Copper-Zinc Superoxide Dismutase (CuZnSOD) and is one of your body’s primary internal defense mechanisms against oxidative stress.

  • 𝐈𝐎𝐍𝐎𝐏𝐇𝐎𝐑𝐄 is a substance that transports particles across the plasma membrane of the cell to its center - where Zinc is most needed in order to maximize support for cellular defense & immune health. Zinc combined with highly bioavailable Quercetin, such as the type found in this formula, has been clinically shown to work together as an Ionophore (Zinc transporter), capable of boosting all-important intracellular Zinc.

  • 𝐒𝐮𝐩𝐞𝐫𝐢𝐨𝐫 𝐏𝐫𝐨𝐭𝐞𝐜𝐭𝐢𝐨𝐧 𝐅𝐫𝐨𝐦 𝐀 𝐒𝐮𝐩𝐞𝐫𝐢𝐨𝐫 𝐙𝐢𝐧𝐜: L-OptiZinc™ is a unique mineral chelate which pairs Zinc with the amino acid L-Methionine for optimal biavailabiliy. Scientific research show that L-OptiZinc™ is better absorbed than other forms of Zinc supplements and that plasma levels remain higher when compared to other forms of Zinc. Zinc is an essential mineral involved in numerous cellular processes including supporting muscle function, aging, skin and immune health.

  • 𝐐𝐮𝐞𝐫𝐜𝐞𝐟𝐢𝐭: 𝐐𝐮𝐞𝐫𝐜𝐞𝐭𝐢𝐧 𝐏𝐡𝐲𝐭𝐨𝐬𝐨𝐦𝐞 — Quercetin, the "QUEEN of flavonoids", has been shown to support healthy blood circulation and behave as a free radical fighter. Unfortunately like many botanical extracts, it offers poor absorption. That is why we only utilize the most activated form of Quercetin, Quercefit™, with Phytosome technology that is proven to enhance Quercetin absorption by more than 20x.

  • 𝐖𝐇𝐀𝐓'𝐒 𝐍𝐎𝐓 𝐓𝐇𝐄𝐑𝐄 𝐈𝐒 𝐀𝐋𝐌𝐎𝐒𝐓 𝐀𝐒 𝐈𝐌𝐏𝐎𝐑𝐓𝐀𝐍𝐓 𝐀𝐒 𝐖𝐇𝐀𝐓 𝐈𝐒...𝐙𝐄𝐑𝐎 𝐅𝐈𝐋𝐋𝐄𝐑𝐒 - We formulated our product with your needs in mind, that's why it is non-GMO, soy and gluten free, and unlike other brands does not contain the additive magnesium stearate which is thought to potentially inhibit absorption of key nutrients. - Manufactured in the USA in a NSF & GMP-certified facility, for guaranteed quality and potency.

Customer Reviews

Based on 15 reviews
100%
(15)
0%
(0)
0%
(0)
0%
(0)
0%
(0)
R
Rhyanne J.
No upset stomach

I am a sensitive stomach lady. If I forget to take this with food I don't need to worry because it will not upset me in the last. Amazing product.

M
Meredith L.
Ionophore Power

Read the description!! This one gets the mineral into your cells because it has an ionophore (carries zinc where it needs to go) - anything that does not have this will not work nearly as well!!

T
Tanner Holland
Glad it has Quercitin

most of the best zincs combine with quercitin for better absorption and immunity. im glad this one also has copper. on my 2nd bottle now.

D
Darwin O
Best I've used

I feel like everything feels better for me when I'm on this one. Could be my imagination but even my knees and inflammation feel better. Good for me.

t
topcatdance
Thank you for this

This keeps all my girls healthy and doesn't make them want to puke like the other zincs we have used did. Great quality.

Frequently Asked Questions

Ingredients
Zinc (as L-OptiZinc® L-Methinine Zinc Complex), Copper (as Copper Bisglycinate Chelate), Quercetin (as Quercefit® Sophora japonica leaf extract & sunflower lecithin)

Other Ingredients
DRcaps™ "Acid-Resistant Capsule" (Hypromellose Capsule)

DOES NOT CONTAIN
Fillers, wheat, gluten, yeast, soy protein, animal or dairy products, fish, shellfish, peanuts, tree nuts, egg, artificial colors, artificial sweeteners, or artificial preservatives.

All Pure TheraPro Rx Formulas Meet or Exceed cGMP Quality Standards. This product is manufactured in the USA in a FDA inspected, NSF and GMP-certified facility for guaranteed quality and potency.

Zinc Defense Supports Immune Function and Hormonal Health

Zinc Defense™ is a unique bio-enhanced formula containing clinically-backed ingredients designed to support the body’s natural immunity. L-OptiZinc® is a zinc mineral chelate, which when paired with quercetin (a zinc ionophore), increases the absorption of zinc into cells where it’s needed the most and provides the greatest benefit. 

Clinically Effective Formula

Quercefit® is a highly bioavailable form of quercetin that uses phytosome technology, proven to significantly enhance absorption. 


Pairing L-OptiZinc® and Copper provides the ability to develop a crucial antioxidant enzyme - Copper-Zinc Superoxide Dismutase, a key defense mechanism against oxidative stress and free radical damage. 


Zinc is a key player in your body that supports immune function, while Copper is vital for functions such as energy production and blood cell formation. 

Uncompromising Quality

Zinc Defense™ is formulated with L-OptiZinc™, a unique mineral-amino acid chelate which pairs Zinc with the L-Methionine for optimal bioavailability. Scientific research show that L-OptiZinc™ is better absorbed than other forms of Zinc supplements and that plasma levels remain higher when compared to other forms of Zinc. Zinc is an essential mineral involved in numerous cellular processes including supporting muscle function, aging, skin and immune health.

Purity Is Our Priority

Pure TheraPro Rx® provides supplement solutions to ensure your body gets the micronutrients necessary to support total-body health and vitality. Pure TheraPro Rx® supplements do not contain any fillers such as rice flour, corn starch, or wood pulp fibers like cellulose. Our manufacturing facility adheres to strict NSF/cGMP (Current Good Manufacturing Practices) guidelines. We chose to sweeten our products with a patented form of monk fruit, never using artificial sweeteners or stevia. In addition to avoiding unwanted digestive issues and allergic responses common with other sweeteners, monk fruit provides additional health benefits.

A comprehensive system

Many of our biological systems are simultaneously impacted by lifestyle, diet and supplementation. When you provide an optimized environment for nutrients, they will work synergistically, resulting in greater outcomes. We recommend several complementary products based on supporting clinical study data and customer feedback.