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High Potency Iron 36 mg

4.8
★ ★ ★ ★ ★
(298 ratings)
Iron 36 mg
Product Image
Score82
Bisglycinate offers good absorption and tolerance potential, but the amount is high for unsupervised routine use. The focused formula omits vitamin C and blood-cell-supporting B vitamins.
How scoring works
Capsule
Quantity:90 Capsule(s) • (90 servings)
Goals:
Hair Health
Productivity Boost
Energy
Immunity

Score 82

Bisglycinate offers good absorption and tolerance potential, but the amount is high for unsupervised routine use. The focused formula omits vitamin C and blood-cell-supporting B vitamins.
How scoring works
$17.00($0.18 per serving)
iHerb
$ 17.00
Pure Formulas
$ 17.00
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Analysis

Ferrochel iron bisglycinate supplies 36 mg of iron in one capsule. Bisglycinate offers good absorption and tolerance potential, but the amount is high for unsupervised routine use.

The serving is more appropriate for correcting a documented shortfall than for general wellness. Single-capsule dosing and a favorable serving cost keep the regimen simple.

The focused formula omits vitamin C and blood-cell-supporting B vitamins. Iron status and the reason for supplementation should guide duration and dose.

Who is it for
  • Adults with confirmed low iron
  • People advised to use a higher-dose iron product
  • Users who tolerate bisglycinate better than standard salts
Best for
  • Supervised iron repletion
  • High-potency chelated iron
  • One-capsule dosing

Pros

  • Uses premium Ferrochel bisglycinate
  • High 36 mg iron amount
  • One-capsule serving
  • Favorable cost for a chelate

Cons

  • Amount is aggressive for routine use
  • No vitamin C is included
  • No folate or vitamin B12 support

Warnings

  • The 36 mg serving may cause nausea, constipation, or abdominal discomfort.
  • Use iron for a confirmed need; unnecessary intake can accumulate, particularly in people with hemochromatosis or other iron-overload conditions.
  • Iron can reduce absorption of levothyroxine and some tetracycline or quinolone antibiotics, so separate doses as directed by a pharmacist.
  • Keep iron supplements away from children because accidental ingestion can cause serious iron poisoning.

Nutrient quality

85 Highest impact

Premium bisglycinate and a high amount create strong deficiency-focused potency. The amount raises clear overload, digestive, and accidental-ingestion concerns.

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Ingredient transparency

84 Highest impact

The iron form and amount are specific, with no hidden blend. Intake directions and non-active ingredients were not included in the supplied details.

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Customer satisfaction

70 High impact

The available satisfaction metric is favorable and the sample provides useful confidence. Specific experience details are absent, so repeated complaints and purpose fit remain uncertain.

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Value for money

87 Highest impact

Useful active quality and a practical serving cost support good value. The formula compares well without obvious price inflation.

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Goals

Hair Health
Impact
Highest effect
A- Goal FitA+ Strength of SupportD+ CoverageA- Formula Quality
Iron · 36 mg

36 mg of Ferrochel iron bisglycinate may meaningfully reduce shedding when low iron stores are the cause. Iron has strong relevance for confirmed deficiency, but it does not broadly address hair loss from other causes.

The chelated form is well absorbed and clearly disclosed in a convenient single capsule. Iron should not be used casually when stores are adequate because excess iron can cause digestive effects and is unsafe for people with iron-overload disorders.

Study evidence
Iron Disputed 25 studies
Productivity Boost
Impact
High effect
B- Goal FitA Strength of SupportD+ CoverageA+ Formula Quality
Iron · 36 mg

Iron can improve energy and mental clarity when low iron status is causing fatigue, but it is not a general productivity enhancer. Evidence is strong for correcting deficiency and weak for use in people whose iron status is already adequate.

The bisglycinate chelate is well absorbed and the amount is appropriate for targeted supplementation. Unnecessary iron can accumulate or cause digestive effects, so regular use should be guided by a demonstrated need.

Study evidence
Iron Supportive 69 studies
Energy
Impact
High effect
B+ Goal FitB Strength of SupportD+ CoverageA- Formula Quality
Iron · 36 mg

Iron bisglycinate supports hemoglobin formation and oxygen transport when iron status is low. Ferrochel provides a well-absorbed chelated form with a clear 36 mg amount.

The dose is high for routine use without a demonstrated need, and the formula lacks vitamin C, folate, and B12. People with iron-overload disorders or adequate iron stores should avoid ongoing use because excess iron can accumulate and cause harm.

Study evidence
Iron Supportive 74 studies
Immunity
Impact
High effect
C- Goal FitB Strength of SupportD- CoverageA+ Formula Quality

Iron bisglycinate may support immune function when iron deficiency is confirmed, and the chelated form is well absorbed. A high iron amount is not appropriate as routine immune support for people with adequate iron stores.

The single capsule clearly discloses the active form and dose. Unnecessary iron can accumulate and disturb immune balance, so the high amount should be tied to documented need.

Study evidence
Iron Supportive 23 studies

Ingredients

IngredientAmount per serving
Iron (Ferrochel Iron Bisglycinate)
36 mg
Gluten Free Adults 18–50 Vegan Dairy Free Vegetarian
Report overview
B Active Ingredient Quality & BioavailabilityA+ Dose, Safety & Label TransparencyB+ Value

Ferrochel iron bisglycinate provides a gentle, highly absorbable form at an effective 36 mg dose. The one-capsule serving is convenient, but no vitamin C or blood-cell-support cofactors are included. The premium form still offers favorable cost per serving.

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Sources

Published studies used for the product analysis and the top-ranked studies for each ingredient and goal.

  1. Large-dose intravenous ferric carboxymaltose injection for iron deficiency anemia in heavy uterine bleeding: a randomized, controlled trial.
    Van Wyck DB; Mangione A; Morrison J; Hadley PE; Jehle JA; Goodnough LT · Transfusion · 2010
    Randomized trial477 participantsEnergy forIron
  2. The Effect of Parenteral or Oral Iron Supplementation on Fatigue, Sleep, Quality of Life and Restless Legs Syndrome in Iron-Deficient Blood Donors: A Secondary Analysis of the IronWoMan RCT.
    Macher S; Herster C; Holter M; Moritz M; Matzhold EM; Stojakovic T; Pieber TR; Schlenke P; Drexler C; Amrein K · Nutrients · 2021
    Randomized trial176 participantsEnergy forIron
  3. Ferric carboxymaltose vs. oral iron in the treatment of pregnant women with iron deficiency anemia: an international, open-label, randomized controlled trial (FER-ASAP).
    Breymann C; Milman N; Mezzacasa A; Bernard R; Dudenhausen J; FER-ASAP investigators · Journal of perinatal medicine · 2018
    Randomized trial252 participantsEnergy forIron
  4. Effect of iron therapy on fatigue symptoms in non-anaemic iron deficient women of reproductive age- A Randomized Controlled Trial.
    Sultana N; Bajwa FA; Sikandar MZ; Haider MM; Majeed T · JPMA. The Journal of the Pakistan Medical Association · 2026
    Randomized trial164 participantsEnergy forIron
  5. Intravenous iron isomaltoside treatment of women suffering from severe fatigue after postpartum hemorrhage.
    Holm C; Thomsen LL; Langhoff-Roos J · The journal of maternal-fetal & neonatal medicine : the official journal of the European Association of Perinatal Medicine, the Federation of Asia and Oceania Perinatal Societies, the International Society of Perinatal Obstetricians · 2019
    Randomized trial85 participantsEnergy forIron
  6. The Association Between Alopecia Areata and Iron Deficiency Anemia: A Large-Scale Population-Based Case-Control Study.
    Davidovici B; Drutin Y; Ben-Tov A; Mimouni D; Wohl Y · Journal of personalized medicine · 2026
    Case-control study100,203 participantsHair Health forIron
  7. Iron Deficiency and Nonscarring Alopecia in Women: Systematic Review and Meta-Analysis.
    Treister-Goltzman Y; Yarza S; Peleg R · Skin appendage disorders · 2022
    Meta-analysis10,029 participants36 studies pooledHair Health forIron
  8. Comparative Analysis of Postoperative Hair Loss and Micronutrient Deficiencies After One-Anastomosis Gastric Bypass Versus Sleeve Gastrectomy.
    Chinisaz F; Maleki T; Najjari K; Miratashi Yazdi SA · Obesity surgery · 2026
    Cohort study261 participantsHair Health forIron
  9. Assessment of Serum Ferritin Levels in Female Patients With Telogen Effluvium.
    Thamotharan N; Harikumar MV; Sundaram M; Swaminathan A; Rangarajan S · Cureus · 2026
    Cross-sectional study100 participantsHair Health forIron
  10. Diagnosis and treatment of female alopecia: Focusing on the iron deficiency-related alopecia.
    Lin CS; Chan LY; Wang JH; Chang CH · Tzu chi medical journal · 2023
    Cohort study155 participantsHair Health forIron
  11. The immune response in iron-deficient children: Impaired cellular defense mechanisms with altered humoral components.
    Macdougall LG; Anderson R; McNab GM; Katz J · The Journal of pediatrics · 1975
    Single-arm trial27 participantsImmunity forIron
  12. The role of iron homeostasis in remodeling immune function and regulating inflammatory disease.
    Mu Q; Chen L; Gao X; Shen S; Sheng W; Min J; Wang F · Science bulletin · 2023
    Narrative reviewImmunity forIron
  13. Hepcidin--a peptide hormone at the interface of innate immunity and iron metabolism.
    Ganz T · Current topics in microbiology and immunology · 2006
    Narrative reviewImmunity forIron
  14. Adaptive immunity and vaccination - iron in the spotlight.
    Preston AE; Drakesmith H; Frost JN · Immunotherapy advances · 2025
    Narrative reviewImmunity forIron
  15. Buried Treasure: Evolutionary Perspectives on Microbial Iron Piracy.
    Barber MF; Elde NC · Trends in genetics : TIG · 2016
    Narrative reviewImmunity forIron
  16. Effects of daily iron supplementation in primary-school-aged children: systematic review and meta-analysis of randomized controlled trials.
    Low M; Farrell A; Biggs BA; Pasricha SR · CMAJ : Canadian Medical Association journal = journal de l'Association medicale canadienne · 2014
    Meta-analysis7,089 participants32 studies pooledProductivity Boost forIron
  17. Consumption of Iron-Biofortified Beans Positively Affects Cognitive Performance in 18- to 27-Year-Old Rwandan Female College Students in an 18-Week Randomized Controlled Efficacy Trial.
    Murray-Kolb LE; Wenger MJ; Scott SP; Rhoten SE; Lung'aho MG; Haas JD · The Journal of nutrition · 2017
    Randomized trial150 participantsProductivity Boost forIron
  18. Functional consequences of iron supplementation in iron-deficient female cotton mill workers in Beijing, China.
    Li R; Chen X; Yan H; Deurenberg P; Garby L; Hautvast JG · The American journal of clinical nutrition · 1994
    Randomized trial80 participantsProductivity Boost forIron
  19. The Effect of Iron-Fortified Lentils on Blood and Cognitive Status among Adolescent Girls in Bangladesh.
    Barnett AL; Wenger MJ; Yunus FM; Jalal C; DellaValle DM · Nutrients · 2023
    Randomized trial359 participantsProductivity Boost forIron
  20. Daily iron supplementation for improving anaemia, iron status and health in menstruating women.
    Low MS; Speedy J; Styles CE; De-Regil LM; Pasricha SR · The Cochrane database of systematic reviews · 2016
    Meta-analysis8,506 participants67 studies pooledProductivity Boost forIron