Humectant
POTASSIUM FRUCTOBORATE
Safety score · 0–100
Moderate
Derived from EU CosIng regulatory status, PubChem hazard data and published research. How we score.
About
A potassium-boron-fructose complex used as a humectant and dietary boron source. EU classifies many boron compounds as reproductive-toxicity category 1B, so concentration in cosmetics is tightly limited.
Function
Skin benefits
- Provides bioavailable boron nutrient profile
- Mild humectant action
- Used at very low cosmetic concentrations
Known concerns
- Boron compounds restricted under EU CLP for reproductive toxicity
- Use limited by EU Annex III boron entries
- Not recommended for products used on broken skin or in pregnancy
References
EU CosIng database
European Commission cosmetic ingredient registry — regulatory status, restrictions, authorised functions.
Related humectants
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This profile is for educational purposes and does not constitute medical advice. Regulatory status and scientific understanding evolve — always read the physical product label and consult a healthcare professional for personal concerns.