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Clinically Studied · Since 1988
Defend Your Cells from the Inside Out.
Cell Guard activates your body's own antioxidant enzyme system — boosting SOD, Catalase, and Glutathione Peroxidase to neutralize free radicals at the cellular level.
The same proven antioxidant enzyme formula — formulated for humans and for your pets.
For Humans
Cell Guard
Advanced antioxidant enzyme complex. Boosts SOD, Catalase, and GPx to reduce oxidative stress, support joint health, energy, immune function, and skin clarity.
For Pets
Cell Guard for Pets
The same clinically studied enzyme formula adapted for dogs. Increases energy, improves mobility, supports immune health, and helps extend a happy active lifespan.
The Science
Not just an antioxidant. An enzyme activator.
Most supplements add antioxidants from outside. Cell Guard activates the antioxidant enzymes your cells already produce — exponentially more powerful than vitamins alone.
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Primary Defense
Superoxide Dismutase (SOD)
Your body's first-line antioxidant enzyme. One SOD molecule neutralizes millions of free radicals per second — far beyond what Vitamin C can do molecule-for-molecule.
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Cellular Cleanup
Catalase (CAT)
Breaks down hydrogen peroxide — a toxic byproduct of SOD activity — into harmless water and oxygen, completing the antioxidant chain reaction cleanly.
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Membrane Defense
Glutathione Peroxidase (GPx)
Protects cell membranes from lipid oxidation — preserving structural integrity of every cell, critical for skin, joint tissue, and organ health.
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Protein Repair
Methionine Reductase (MET)
Repairs oxidized proteins after free radical damage, restoring cellular function and slowing the accumulation of dysfunctional proteins linked to aging.
4x
Antioxidant pathways activated simultaneously
35+
Years of proven real-world results
What's Inside
Pure. Proven. Plant-Based.
Every ingredient chosen for a specific biochemical role. No fillers. No mystery blends.
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Triticum aestivum
Wheat Sprout Extract
The richest natural source of SOD-inducing phytonutrients. Young wheat sprouts signal cells to dramatically upregulate their own antioxidant enzyme production.
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Glycine max
Soybean Extract
Provides isoflavones that enhance catalase activity and support glutathione recycling, making the entire antioxidant network more efficient and self-sustaining.
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Zea mays
Sweet Corn Extract
Rich in lutein, zeaxanthin, and carotenoids for targeted antioxidant support — particularly for eye health and skin protection against UV-induced damage.
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d-alpha Tocopherol
Vitamin E
A fat-soluble antioxidant that embeds directly into cell membranes, working synergistically with GPx to prevent lipid peroxidation at every cell's outer layer.
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Methylcobalamin
Vitamin B-12
Supports cellular energy metabolism and the methylation cycle — critical for DNA repair, neurological function, and long-term cellular longevity.
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Bovine-derived
Glutathione Peroxidase
A direct dose of GPx provides immediate antioxidant action while the botanical ingredients work to upregulate your body's own ongoing enzyme production.
Why It Works
What you'll actually feel
Oxidative stress touches every system in your body. Reducing it creates a cascade of benefits people notice within weeks.
01
Joint Comfort & Mobility
Oxidative stress drives joint inflammation. Most users report significantly reduced stiffness and better range of motion — especially effective for arthritis sufferers.
02
Sustained Energy Levels
Mitochondria produce energy and free radicals simultaneously. Better antioxidant protection means mitochondria run more efficiently, resulting in cleaner, more sustained energy.
03
Skin Clarity & Glow
Oxidative stress accelerates skin aging and causes dullness. Users frequently report clearer, more radiant skin within the first month of consistent use.
04
Immune System Resilience
Immune cells require antioxidant protection to function optimally. Cell Guard helps keep your immune response strong and well-regulated year-round.
Real Results
What our customers say
Trusted by customers since 1988. Real people, real results.
Joint Relief
★★★★★
"I've taken Cell Guard since 1988, off and on. Back then, when I felt tight all over I'd take a bottle and my body would loosen up. Now over 60, I take it every morning. I love this product."
— Nannyon S. · Verified Customer
Longevity
★★★★★
"Double the body's Superoxide Dismutase and Catalase, double the lifespan. The science is clear and this is the most effective way I've found to do it. Simple as that."
— Seth K. · Verified Customer
Pets
★★★★★
"Our Malamute Conan had a very strange gait after being struck by lightning. Within days of starting Cell Guard he returned to a normal gait and began jumping on his dog house. Remarkable."
— Susan H. · Verified Customer
A Story From Our Community
When Every Step Matters
After years of searching, Sue was thrilled to find Cell Guard again. Read why she's hopeful it can support Terrier's comfort, movement, and quality of life — and how this supplement has meant everything to her dog's daily wellbeing.
How is Cell Guard different from regular antioxidant supplements?
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Most antioxidant supplements — Vitamin C, E, etc. — work by directly donating electrons to neutralize free radicals, and are consumed in the process one-for-one. Cell Guard activates your body's own antioxidant enzyme system. A single SOD enzyme neutralizes millions of free radicals per second and is not consumed in the process. This is exponentially more powerful than direct antioxidant supplementation.
How quickly will I see results?
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Many users report noticeable changes within 2–4 weeks, particularly in energy levels and joint comfort. Skin clarity often improves within 3–6 weeks of consistent daily use. Long-term benefits like cellular protection compound over months and years of continued use.
Is Cell Guard safe for daily long-term use?
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Yes. Cell Guard has been used safely since 1988 — over 35 years. The formula is based entirely on botanical extracts, vitamins, and naturally-occurring enzymes. It contains no artificial additives, stimulants, hormones, or synthetic compounds. As always, consult your healthcare provider if you have specific medical conditions.
Does Cell Guard contain gluten or allergens?
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Cell Guard is free from artificial additives, gluten, dairy, and common allergens. The wheat sprout extract undergoes processing that removes gluten proteins — however if you have celiac disease, please consult your physician before use.
What is the recommended dosage?
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The standard recommendation is 3 tablets per day with food. Some users, particularly older adults or those managing specific health conditions, take 3–6 tablets daily. Start with the standard dose and adjust based on your results and the guidance of your healthcare provider.
Where can I buy Cell Guard?
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You can purchase Cell Guard directly from our official website at shopcellguard.com. Buying directly ensures you receive a fresh, authentic product and access to our best pricing including the subscribe & save discount.
Get Started
Your cells work hard. Give them backup.
Join thousands who've made Cell Guard part of their daily defense against oxidative stress and aging — for themselves and their pets.
