Science
Mechanism of Action
As a potent chelator, Pentetic Acid functions by forming stable complexes with metallic ions such as iron, copper, calcium, and magnesium. On a cellular level, by sequestering these ions, it mitigates their potential to catalyze oxidative reactions within formulations, thereby preventing ingredient degradation. For skin and hair, this binding capacity reduces the undesirable accumulation of mineral deposits from hard water or other sources, contributing to healthier-looking skin and enhanced product performance.
Research
Clinical Evidence
Low confidenceN/A
Transparency
Dusting Analysis
Pentetic Acid is primarily utilized for its functional role in preserving product stability and enhancing performance, rather than providing direct, active benefits to the skin. It is typically incorporated in minimal concentrations to chelate metal ions that could otherwise compromise formulation integrity or aesthetic appeal, qualifying it as an ingredient often 'dusted' into formulations.
The Formula
Formulation
Stability
Pentetic Acid is supplied as a white crystalline solid, exhibiting stability under standard storage conditions in well-closed, cool, and dry environments. A 1% aqueous solution maintains an acidic pH between 2.1 and 2.5. Its pentabasic pKa range, spanning from 1.5 to 10.6, indicates broad stability across various pH levels and robust chelating activity, which can also prevent the decomposition of peroxygen chemicals.
Synergies
- Enhances foaming and cleaning performance of personal care products, particularly in hard water by neutralizing interfering ions.
- Stabilizes formulations containing peroxygen chemicals, such as hydrogen peroxide, by preventing metal-catalyzed decomposition.
Conflicts
- Formulations where the free form of specific metal ions is crucial or where chelation would be detrimental.
- Strong oxidizing agents (when in its pure, unformulated state).
Safety
Safety Profile
While the Cosmetic Ingredient Review (CIR) Expert Panel concluded that Pentetic Acid is safe for use in cosmetics, citing no significant skin penetration, negative genotoxicity, or reproductive/developmental toxicity risks, it is critically important to note its classification under EU Regulation 2022/692 (OMNIBUS ACT VI). This regulation identifies Pentetic Acid as carcinogenic, mutagenic, or toxic to reproduction (CMR) and consequently prohibits its use in cosmetic products marketed in the EU as of December 1, 2023. The FDA has approved Pentetic Acid (as DTPA) for specialized medical treatments of internal contamination and as an inactive ingredient in drug products, distinct from general cosmetic application.
Your Skin
Skin Compatibility
Our Assessment
Verdict
Despite its proven efficacy as a chelating agent for product stability and its low irritancy profile, Pentetic Acid's classification as CMR and subsequent ban in EU cosmetics makes it an unacceptable ingredient for Moumoujus, necessitating its exclusion from our precision skincare formulations.
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