Sodium Tetraborate Anhydrous
Also known as: Anhydrous Borax, Sodium Borate, Disodium Tetraborate, Borax
Effective Dosage
No established dose
What the Science Says
Sodium tetraborate anhydrous is the dehydrated (water-free) form of borax, a boron-containing mineral compound. Boron in general has been studied for potential roles in bone health, hormone metabolism, and joint function, but these findings come from studies using other boron forms — not specifically this anhydrous compound. No published clinical research was found for this exact ingredient, so any benefit claims are extrapolated from general boron research and should be treated with significant caution.
What It Doesn't Do
Not proven to build bone or treat arthritis. No clinical evidence it boosts testosterone or estrogen in meaningful ways. Not a recognized essential nutrient with an established dietary requirement. Don't assume it's safe just because boron occurs naturally — the anhydrous industrial form is a different matter entirely.
Evidence-Based Benefits
Sodium tetraborate anhydrous is the dehydrated (water-free) form of borax, a boron-containing mineral compound. Boron in general has been studied for potential roles in bone health, hormone metabolism, and joint function, but these findings come from studies using other boron forms — not specifically this anhydrous compound. No published clinical research was found for this exact ingredient, so any benefit claims are extrapolated from general boron research and should be treated with significant caution.
Weak EvidenceEffective at: No established dose
Source: auto-research
Absorption & Bioavailability
Unknown — no clinical absorption data available for this specific form. General boron compounds are reasonably absorbed orally, but this cannot be assumed to apply here without specific data.
Red Flags to Watch For
- Sodium tetraborate (borax) is primarily known as an industrial cleaning and pest-control agent, not a food-grade supplement ingredient — its presence in 1,000+ supplement products is a serious concern.
- No published clinical trials or safety studies were found for this specific compound as a dietary supplement ingredient.
- Boron toxicity is a real risk — high doses can cause nausea, vomiting, kidney damage, and reproductive harm; the safe upper limit for boron is 20 mg/day for adults.
- Regulatory agencies including the EU have restricted borax in food and cosmetic products due to safety concerns — verify legality and safety in your country before use.
- Products listing this ingredient may be mislabeled or using an industrial-grade compound not intended for human consumption.
Products Containing Sodium Tetraborate Anhydrous
See how Sodium Tetraborate Anhydrous is used in these analyzed products:
Research Sources
- General knowledge
This information is for educational purposes only and is not medical advice. Always consult a healthcare professional before starting any supplement regimen. Last updated: 2026-04-10