🟢 100/100

This product looks safe

  • No ingredients exceed tolerable upper intake levels
  • Limited research evidence available for ingredients
B Label Compliance Grade

Product Label

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Label Data

25 Drop(s) Serving Size
30 Servings
Mineral Product Type
0% Evidence Coverage

Supplement Facts — Evidence Check

Iron
35 mcg (1% DV)

Other Ingredients

deionized Water Ethanol Dextrose Citric Acid

Label Claims — Verification

All Other
All Other (99% of products) Structure/Function (71% of products) Nutrient (61% of products) Approved Health (1% of products)

Target Groups

Adult (18 - 50 Years)

Product Information

📋 Directions for Use

Recommendation: Take 25 drops under the tongue 20 to 30 minutes before meals or as recommended by your health care professional.

⚠️ Warnings & Precautions

Warning: Keep out of the reach of children.

If pregnant or nursing, consult your physician before using this product.

If tamper resistant seals are broken do not use this product.

🧪 Formulation Notes

Oligo Iron is a precisely formulated biological concentrate designed for rapid sublingual absorption. Promotes healthy hemoglobin production and supports oxygen transport.

Product Details

UPC / SKU 3 58301 23711 4
DSLD Entry Date 2020-08-23
Product Type Mineral
Form Liquid
DSLD ID 231606
Data Updated 2026-04-11

Research Evidence

566 Research Sources
56 Avg Quality Score
240 Meta Analysis
100 Clinical Trial
74 Systematic Review
71 Guideline
58 Rct
11 Cochrane Review
4 Regulatory Source
2 Other
2 Narrative Review
1 Observational
1 Openfda Safety
A Systematic review and meta-analysis of intravenous iron therapy for patients with heart failure and iron deficiency
Meta Analysis Nature medicine 2025
A Intermittent iron supplementation for reducing anaemia and its associated impairments in adolescent and adult menstruating women
Meta Analysis The Cochrane database of systematic reviews 2019
A Oral or parenteral iron supplementation to reduce deferral, iron deficiency and/or anaemia in blood donors
Meta Analysis The Cochrane database of systematic reviews 2014
A Serum or plasma ferritin concentration as an index of iron deficiency and overload
Meta Analysis The Cochrane database of systematic reviews 2021
A Non-invasive diagnostic tests for Helicobacter pylori infection
Meta Analysis The Cochrane database of systematic reviews 2018
A Hypoxia-inducible factor stabilisers for the anaemia of chronic kidney disease
Meta Analysis The Cochrane database of systematic reviews 2022
A Wheat flour fortification with iron and other micronutrients for reducing anaemia and improving iron status in populations
Meta Analysis The Cochrane database of systematic reviews 2021
A Fortification of condiments and seasonings with iron for preventing anaemia and improving health
Meta Analysis The Cochrane database of systematic reviews 2023
A Screening and Supplementation for Iron Deficiency and Iron Deficiency Anemia During Pregnancy: US Preventive Services Task Force Recommendation Statement.
Guideline JAMA 2024
A Psychiatric and cognitive outcomes of iron supplementation in non-anemic children, adolescents, and menstruating adults: A meta-analysis and systematic review
Meta Analysis Neuroscience and biobehavioral reviews 2025
View all evidence for Iron →

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