Mineral
Boron (as Boron Citrate)
Also known as: boron, boron citrate, elemental boron, B (mineral)
An essential trace mineral involved in bone metabolism, hormone regulation, and cognitive function. Boron citrate is a bioavailable form of elemental boron commonly used in supplements.
Primary uses
- Bone health and mineral density
- Hormone balance (particularly estrogen)
- Joint and connective tissue support
- Cognitive function
How it works
- Regulates calcium, magnesium, and phosphorus metabolism critical for bone mineralization
- Influences estrogen and testosterone metabolism
- Modulates inflammatory signaling and antioxidant enzymes
Dosage
- Typical range
- 1–3 mg daily (elemental boron)
- Timing
- With meals for better absorption
- With food
- Recommended
- Duration
- Safe for ongoing daily use; benefits accumulate over weeks to months
- Special populations
- Particularly relevant for post-menopausal women; upper limit approximately 20 mg/day
Forms
- Boron citrate· 70/100
- Boron aspartate· 70/100
- Boron glycinate· 70/100
Safety
Common side effects
- Generally well-tolerated at supplemental doses; GI upset rare
Contraindications
- Pregnancy and nursing: avoid high-dose boron supplementation; adequate dietary intake is safe
- Individuals with kidney disease should consult healthcare provider
Products containing Boron (as Boron Citrate)
Top-scoring supplements in our catalog that list Boron (as Boron Citrate) on the label. Each product is graded on Formulate's ingredient-level rubric — dose accuracy, form, transparency, and third-party testing.
Evidence notes
Boron has preliminary evidence for bone health and hormone support, particularly in post-menopausal women, but research is limited and inconsistent. Few high-quality RCTs; most evidence is observational or from small studies. Grade reflects moderate but incomplete evidence.
Grade C: Mostly observational or small trials; mechanism is plausible but unproven at scale.
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