Hydrogen peroxide neutralization
Rapidly converts toxic H2O2 into harmless water and oxygen
Catalase
Essential antioxidant enzyme that breaks down hydrogen peroxide into water and oxygen, protecting cells from oxidative damage
Scientific nameCatalase enzyme
FormulaHeme-containing enzyme protein
Molecular weight240 kDa (tetramer) g/mol
CAS9001-05-2
55
absorption score
9
safety / 10
40
USD per month
5
documented interactions
Check it against something
Catalase with:
- Amylase
- Ashwagandha
- Avocado Oil
- BCAA (Branched-Chain Amino Acids)
- Beetroot Powder
- Beta-Alanine
- Bifidobacterium lactis
- Bifidobacterium longum
- Bovine Collagen
- Caffeine
- Calcium
- Calcium Bone Formula
- Calcium Carbonate
- Casein Protein
- Chicken Collagen
- Choline (Bitartrate)
- Chondroitin Sulfate
- Coconut Oil
- Collagen Peptides
- Comprehensive Immune Support Complex
- Comprehensive Multivitamin-Mineral Complex
- Creatine HCL
- Creatine Monohydrate
- D-Mannose
- DHA
- Electrolyte Blend
- EPA
- Fish Oil (EPA/DHA)
- Folate (5-MTHF)
- Ginger
- Iron Fumarate
- Iron Sulfate
- Joint Mobility Formula
- Keratin
- Krill Oil
- L-Carnitine
- L-Citrulline
- Lactase
- Lactobacillus acidophilus
- Lactobacillus rhamnosus
- Lipase
- Magnesium Citrate
- Magnesium Glycinate
- Magnesium Oxide
- Marine Collagen
- Melatonin
- Modafinil
- Olive Oil Extract
- Omega-3 + Curcumin + Vitamin D Triple Anti-Inflammatory Formula
- Papain
- Protease
- Saccharomyces boulardii
- Superoxide Dismutase (SOD)
- Turmeric
- Vitamin B12 (Cyanocobalamin)
- Vitamin B12 (Methylcobalamin)
- Vitamin C (Ascorbic Acid)
- Vitamin C (Sodium Ascorbate)
- Vitamin D3
- Whey Protein
- Zinc Gluconate
Nothing found
94
out of 100
Works better together
Take together — same timing window amplifies the synergy.
What it does
mechanism and evidence for each claimPrevention of oxidative DNA damage
Protects genetic material from hydrogen peroxide-induced mutations
Enhanced cellular longevity
Reduces oxidative stress that contributes to cellular aging
Improved immune system function
Protects immune cells from their own oxidative burst
Support for healthy aging
May help maintain youthful cellular function and appearance
Others take these for the same thing
Same goal, different mechanism — check any of them against this one
Probiotics for Autoimmune Disease Support
Gut health & immune modulation
10-100 billion CFU daily
B
60%
Magnesium Glycinate
Superior absorption sleep & muscle support
200-600 mg
A
90%
Magnesium Citrate
Balanced absorption & digestive support
300-600 mg
A
35%
Chloride
Electrolyte & digestive support
2300mg
A
95%
Bone Broth Collagen
Gut healing & collagen support
20-40g powder
B
85%
Psyllium Husk
Digestive health & cholesterol support
5-15g
A
95%
Every pair we checked
12 combinations scored by the engine
Catalase + Caffeine
No documented interaction either way
No known interaction
70
Catalase + Creatine Monohydrate
No documented interaction either way
No known interaction
70
Catalase + Calcium Carbonate
No documented interaction either way
No known interaction
70
Catalase + Whey Protein
No documented interaction either way
No known interaction
70
Catalase + Lactase
No documented interaction either way
No known interaction
70
Catalase + Bovine Collagen
No documented interaction either way
No known interaction
70
Catalase + DHA
No documented interaction either way
No known interaction
70
Catalase + Turmeric
No documented interaction either way
No known interaction
70
Catalase + Fish Oil (EPA/DHA)
No documented interaction either way
No known interaction
70
Catalase + Vitamin D3
Enhanced membrane protection from oxidative damage
Works better together
78
Catalase + Glutathione
Comprehensive cellular antioxidant defense
Works better together
82
Catalase + Superoxide Dismutase (SOD)
Complete antioxidant enzyme protection system
Works better together
94
Dosage
Daily5,000-15,000 units daily
Antioxidant support5,000-10,000 units daily
Therapeutic10,000-20,000 units daily
Anti aging5,000-15,000 units daily long-term
MaximumFollow product guidelines, typically not more than 25,000 units daily
When to expect it
First EffectsImmediate hydrogen peroxide detoxification upon absorption
Peak Benefits8-12 weeks for optimal antioxidant enzyme balance
Deficiency DevelopmentGradual decline with aging and oxidative stress
Toxicity OnsetRare, mainly from excessive supplementation
How to measure it
MarkerCatalase activity, hydrogen peroxide levels, oxidative stress markers
OptimalNormal to high catalase activity, low H2O2 levels
Deficient belowReduced catalase activity, elevated oxidative markers
FrequencyBaseline and periodic monitoring during supplementation
What actually reaches you
The label counts the carrier, your body does not
Absorption
Moderate 55 of 100 · middle of the range for this compound
Delivered daily
5500 mg
Cost per 100 mg delivered
$0.02 comparative — uses the absorption score, not a measured percentage
Works better with
+
Superoxide Dismutase
Complete antioxidant enzyme protection system
SOD produces H2O2 that catalase then neutralizes · level A
+
Glutathione Peroxidase
Comprehensive cellular antioxidant defense
Both enzymes work to neutralize peroxide compounds · level A
+
Vitamin E
Enhanced membrane protection from oxidative damage
Vitamin E protects membranes while catalase neutralizes H2O2 · level BWhat not to take with Catalase
!
Excessive Iron
Iron can promote H2O2 formation and oxidative stress
Iron catalyzes Fenton reaction producing hydroxyl radicals · moderate significance
!
Alcohol Excess
Alcohol metabolism produces H2O2 and depletes antioxidants
Overwhelms catalase capacity and increases oxidative load · moderate significanceMedication interactions
Discuss these with a pharmacist before combiningMay interfere with oxidative mechanisms of treatment
What to do: Consult oncologist before use during treatment
May reduce radiation-induced oxidative damage
What to do: Timing and dosage coordination with radiation oncologist
May support immune cell protection
What to do: Monitor immune function
Available forms
Microencapsulated Catalase: Protected from digestion, Better absorption, Stable formulation, Clinically effective
Food sources
Liver and organ meats
Very high catalase activity · 40
Fresh fruits and vegetables
Moderate catalase activity · 35
Honey and bee products
Natural catalase content · 30
Catalase enzyme supplements
Concentrated enzyme activity · 75
Too little
- Reduced catalase activity leads to:
- Accumulated hydrogen peroxide and oxidative stress
- Accelerated cellular aging and damage
- Increased susceptibility to oxidative diseases
- Poor recovery from oxidative stress
- Premature graying of hair (catalase deficiency symptom)
- Enhanced DNA damage and mutation risk
Too much
- Generally very safe but potential concerns:
- Allergic reactions to enzyme source materials
- Digestive upset with poor formulations
- Theoretical interference with beneficial oxidative processes
- Reduced effectiveness due to poor bioavailability
Who benefits most
aging-adults
Age-related decline in catalase activity and increased oxidative stress
5,000-15,000 units daily with bioavailable forms
high-oxidative-stress
Enhanced protection against environmental and metabolic stressors
10,000-20,000 units daily
immune-compromised
Protects immune cells from oxidative damage during immune responses
5,000-10,000 units daily
athletes-endurance
Reduces exercise-induced hydrogen peroxide production
10,000-15,000 units daily around training
longevity-anti-aging
Supports healthy aging by reducing oxidative cellular damage
5,000-10,000 units daily long-termWhere to buy it
Look for Catalase at 5,000-15,000 units daily per serving. The form that matters here is Microencapsulated Catalase.
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What else affects it
Beyond other supplements
!
Excessive iron
Iron can promote H2O2 formation and oxidative stress
Iron catalyzes Fenton reaction producing hydroxyl radicals
!
Alcohol excess
Alcohol metabolism produces H2O2 and depletes antioxidants
Overwhelms catalase capacity and increases oxidative loadHow it works
- Rapidly decomposes hydrogen peroxide into water and oxygen (2H2O2 → 2H2O + O2)
- Prevents formation of highly reactive hydroxyl radicals from H2O2
- Protects cellular membranes, proteins, and DNA from oxidative damage
- Works in peroxisomes to detoxify metabolic hydrogen peroxide
- Complements SOD activity by processing SOD reaction products
- Maintains cellular redox balance and prevents oxidative stress
Key findings
what the evidence supports- Critical enzyme for cellular protection and healthy aging
- Bioavailability remains challenging - protected formulations preferred
- Generally very safe with minimal side effects
- Most effective when combined with other antioxidant enzymes like SOD
Sources: NIH Examine.com · data reviewed 2026-08-01
Compiled by Denis, who maintains this database and holds no medical qualification — every figure here is sourced or derived, never asserted. How we calculate it →
Common questions
What are the benefits of Catalase?
Documented effects: Hydrogen peroxide neutralization; Prevention of oxidative DNA damage; Enhanced cellular longevity; Improved immune system function. Rapidly converts toxic H2O2 into harmless water and oxygen
How much Catalase should you take per day?
The common daily range is 5,000-15,000 units daily. By goal — antioxidant support: 5,000-10,000 units daily; therapeutic: 10,000-20,000 units daily; anti aging: 5,000-15,000 units daily long-term; maximum: Follow product guidelines, typically not more than 25,000 units daily.
When is the best time to take Catalase?
With meals. First effects are typically reported within Immediate hydrogen peroxide detoxification upon absorption.
What are the side effects of Catalase?
At excessive doses: Generally very safe but potential concerns:, Allergic reactions to enzyme source materials, Digestive upset with poor formulations, Theoretical interference with beneficial oxidative processes, Reduced effectiveness due to poor bioavailability. Safety rating at normal doses is 9 out of 10.
What should you not take with Catalase?
Separate it from Excessive Iron, Alcohol Excess by two to four hours. Iron can promote H2O2 formation and oxidative stress
Does Catalase interact with medications?
Documented interactions with chemotherapy, radiotherapy, immunosuppressants. Discuss these with a pharmacist before combining.
How do you know if you need Catalase?
The marker is Catalase activity, hydrogen peroxide levels, oxidative stress markers, optimal range Normal to high catalase activity, low H2O2 levels. Common deficiency signs: Reduced catalase activity leads to:, Accumulated hydrogen peroxide and oxidative stress, Accelerated cellular aging and damage, Increased susceptibility to oxidative diseases.