Histamine Block Plus

product on market Capsule Seeking Health 🟢 Safety: 100/100
Brand: Seeking Health
🟢 100/100

This product looks safe

  • No ingredients exceed tolerable upper intake levels
  • 62% of ingredients have research evidence
A Label Compliance Grade

Product Label

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Label Data

2 Capsule(s) Serving Size
30 Servings
Other Combinations Product Type
62% Evidence Coverage

Supplement Facts — Evidence Check

Vitamin C
100 mg (111% DV)
20 mg (1667% DV)
📊 16.7× RDA — above typical dose 📚 76 studies (Tier A: 0, B: 33)
RDA 1.2mg This product: 20mg
10 mg (769% DV)
📊 7.7× RDA — above typical dose 📚 12 studies (Tier A: 0, B: 1)
RDA 1.3mg This product: 10mg
25 mg (156% DV)
✅ 1.8× RDA — within safe limits 📚 193 studies (Tier A: 5, B: 63)
RDA 14mg This product: 25mg UL 35mg
7 mg (412% DV)
📊 5.4× RDA — above typical dose (UL: 100 mg) 📚 113 studies (Tier A: 3, B: 35)
RDA 1.3mg This product: 7mg UL 100mg
10 mg (200% DV)
✅ 2.0× RDA — within safe limits 📚 1 studies — no high-quality reviews
RDA 5mg This product: 10mg
50 mg (12% DV)
📊 Market median: 4002.0mg (1 products) 📚 20 studies (Tier A: 0, B: 2)
This product: 50mg
5 mg (45% DV)
✅ Within RDA (0.5× RDA of 11 mg) 📚 258 studies (Tier A: 6, B: 134)
RDA 11mg This product: 5mg UL 40mg
0.5 mg (56% DV)
✅ Within RDA (0.6× RDA of 0.9 mg) 📚 36 studies (Tier A: 0, B: 11)
RDA 0.9mg This product: 0.5mg UL 10mg
Alpha-Ketoglutaric Acid
150 mg
100 mg
📊 Market median: 200.0mg (52 products) 📚 10 studies (Tier A: 0, B: 6)
This product: 100mg
LifePQQ
7 mg
DAO2
2.1 mg

Other Ingredients

Hypromellose Water Gellan Gum Microcrystalline Cellulose Ascorbyl Palmitate Silica

Label Claims — Verification

❓ Nutrient
❓ All Other
❓ Structure/Function
All Other (99% of products) Structure/Function (83% of products) Nutrient (54% of products)

Target Groups

Adult (18 - 50 Years) Gluten Free Dairy Free

Product Information

📋 Directions for Use

Suggested Use: Take 2 capsules as needed, with or without food, or use as directed by your healthcare professional.

⚠️ Warnings & Precautions

Cautions: Consult your healthcare professional before use, especially if you are pregnant or nursing.

Keep out of reach of children.

Contains ingredient derived from porcine (pig). Avoid if allergic to pork or any other ingredient.

Histamine Block is not effective for symptoms of immune-related (antibody or IgE-related) food allergies, such as peanuts, shellfish, etc., or for gluten intolerance due to sensitivity or celiac disease.

🧪 Formulation Notes

Histamine Block Plus nutritionally supports healthy histamine metabolism throughout the body.

The DAO enzyme and copper in this formula support normal histamine breakdown in the digestive tract. SAMe, riboflavin, and additional nutrients support histamine metabolism found systemically.

Does not contain: Milk, egg, fish, shellfish, tree nuts, peanuts, wheat, soy, gluten, GMO, artificial colors, or artificial flavors.

Histamine Block Plus meets or exceeds cGMP Quality Standards.

Manufactured in the USA from globally sourced ingredients Third-party independently tested

Additional Information

Storage: Keep tightly closed in a cool, dry place.

This package is completely recyclable

Find other effective health products at www.seekinghealth.com

Product Details

UPC / SKU 8 10007 52158 9
DSLD Entry Date 2023-08-24
Product Type Other Combinations
Form Capsule
Brand Seeking Health
DSLD ID 292543
Data Updated 2026-04-11

Research Evidence

371 Research Sources
54 Avg Quality Score
148 Meta Analysis
82 Systematic Review
71 Rct
62 Clinical Trial
2 Regulatory Source
1 Cochrane Review
1 Narrative Review
1 Other
1 Openfda Safety
A Vitamin C supplementation in pregnancy
Meta Analysis The Cochrane database of systematic reviews 2015
PubMed DOI Cochrane
A Vitamin C supplementation for the primary prevention of cardiovascular disease
Systematic Review The Cochrane database of systematic reviews 2017
PubMed DOI Cochrane
A Vitamin C for preventing and treating the common cold
Meta Analysis The Cochrane database of systematic reviews 2013
PubMed DOI Cochrane
A Vitamin C for preventing and treating pneumonia
Meta Analysis The Cochrane database of systematic reviews 2013
PubMed DOI Cochrane
A Vitamin E supplementation in pregnancy
Meta Analysis The Cochrane database of systematic reviews 2015
PubMed DOI
A Vitamin C supplementation for prevention and treatment of pneumonia
Meta Analysis The Cochrane database of systematic reviews 2020
PubMed DOI Cochrane
A Vitamin C supplementation for prevention and treatment of pneumonia
Systematic Review The Cochrane database of systematic reviews 2021
PubMed DOI Cochrane
A Nutritional interventions for preventing and treating pressure ulcers
Meta Analysis The Cochrane database of systematic reviews 2024
PubMed DOI
A Does Vitamin C Supplementation Provide a Protective Effect in Periodontal Health? A Systematic Review and Meta-Analysis
Meta Analysis International journal of molecular sciences 2024
PubMed DOI
A Circulating vitamin C concentration and risk of cancers: a Mendelian randomization study
Meta Analysis BMC medicine 2021
PubMed DOI
View all evidence for Vitamin C →

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