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QUATERNIUM-51.

Insufficient Data CAS 1463-95-2 / ANTISTATIC

Quaternium-51 is a synthetic quaternary ammonium compound primarily utilized for its antistatic properties. Its distinct chemical structure, featuring a brominated pyridine ring, enables it to effectively neutralize static charges, notably in hair. It also offers film-forming and general skin conditioning benefits.

antistatic film-forming skin conditioning

Science

Functioning as an antistatic agent, Quaternium-51's unique chemical composition allows it to bind to surfaces, such as hair fibers, to dissipate static electricity, thereby reducing static cling. Furthermore, it acts as a film-forming component and contributes to the conditioning of skin and hair.


Research

Low confidence
Effective range N/A
Optimal

N/A


Transparency

Not commonly dusted

The Formula

Solubility
Unknown
Optimal pH N/A
0 7 14

Safety

CIR Status
Not reviewed
Sensitization risk Unknown

A formal safety assessment by regulatory bodies such as CIR has not been published. While generally considered safe for cosmetic use, potential side effects include skin irritation, allergic reactions, and contact dermatitis. Data regarding its topical usage during pregnancy and breastfeeding are insufficient, necessitating consultation with a healthcare professional. EWG has noted low concerns for neurotoxicity and endocrine disruption, and low-to-moderate concerns for non-reproductive organ system toxicity.


Your Skin

No Normal
No Dry
Yes Oily
No Sensitive
Irritancy Unknown
Comedogenicity Low

Our Assessment

Insufficient Data

With a lack of formal safety assessment and comprehensive clinical data on its efficacy in skin, the overall utility of Quaternium-51 in precision skincare formulations remains largely unquantified.


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