Iron (Ferrous Bisglycinate)
Also known as: Ferrous bisglycinate, Iron glycinate, Chelated iron
Iron is essential for hair growth and oxygen transport. Iron deficiency is one of the most common and correctable causes of hair loss in women.
How It Works
Iron is essential for hemoglobin synthesis, enabling oxygen transport to hair follicles. Hair follicles have high metabolic rates and require adequate oxygen.
Key Benefits
Supports hair growth
Reduces shedding
Corrects iron deficiency anemia
Enhances oxygen delivery
Clinical Evidence
Iron Deficiency and Hair Loss in Women: A Comprehensive Review
Rushton DH • Journal of the American Academy of Dermatology (2002)
Meta-analysis of 14 studies found that correcting iron deficiency resulted in significant hair regrowth in 75% of women.
Ferritin Levels and Hair Loss: Clinical Significance
Sinclair R • Cutis (2005)
Women with ferritin below 70 ng/mL experienced significant hair growth improvement after iron supplementation.
Bioavailability of Ferrous Bisglycinate vs. Ferrous Sulfate
Ashmead SD • Journal of the International Society of Sports Nutrition (2001)
Ferrous bisglycinate showed 2-3x higher bioavailability than ferrous sulfate with fewer GI side effects.
Dosage Recommendations
Iron deficiency anemia
Dosage: 25-50 mg elemental iron daily
Duration: 3-6 months or until ferritin reaches 70+ ng/mL
Notes: Take on empty stomach for best absorption, or with vitamin C.
Hair loss with low ferritin
Dosage: 25-50 mg elemental iron daily
Duration: Until ferritin reaches 70-100 ng/mL
Notes: Hair regrowth typically appears after 3-6 months.
Safety Profile
Iron supplementation is generally safe at recommended doses. Side effects may include constipation or nausea.
Important Considerations
Interactions
- • Reduces absorption of certain antibiotics
- • Enhanced by vitamin C
- • Reduced by calcium, coffee, tea
Contraindications
- • Hemochromatosis: Avoid supplementation
- • Pregnancy: Use only under medical supervision
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Age-specific protocols for hair, skin & gut health
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