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LAUDANOSINE.

Avoid CAS 1699-51-0 / SKIN CONDITIONING

Laudanosine is a substance primarily recognized as a metabolite generated during the degradation of specific neuromuscular-blocking drugs, such as atracurium. While it exhibits various systemic pharmacological effects, there is a complete absence of research indicating any mechanism of action or beneficial effects when applied topically to the skin.

Science

Laudanosine's known pharmacological mechanisms involve interactions with neurological receptors, including competing with acetylcholine and blocking ionic pores. However, no specific mechanism of action or cosmetic benefit on skin has been identified or studied.


Research

Insufficient-data confidence
Effective range N/A
Optimal

N/A


Transparency

Not commonly dusted

There is no evidence or common use of Laudanosine as an active ingredient in skincare formulations, therefore dusting is not applicable in this context.


The Formula

Solubility
Both
Optimal pH N/A
0 7 14

Stability

Laudanosine is produced via the spontaneous degradation of atracurium at physiological pH and temperature. It demonstrates solubility in water (approximately 74.73 mg/L at 25 °C) and is also soluble in various organic solvents, including DMSO (100 mg/mL), ethanol, and methanol. Optimal pH for its stability within skincare formulations has not been specified.


Safety

CIR Status
Not reviewed
Sensitization risk Unknown

Laudanosine is associated with significant systemic toxicity, including the potential to induce excitement and seizure activity, and impact cardiovascular function (hypotension, bradycardia) at sufficient concentrations. It is also known to cross the blood-brain barrier and can decrease the seizure threshold. No dedicated safety assessments by regulatory bodies (CIR, SCCS, FDA) for its use as a topical skincare ingredient have been conducted, and its elimination can be prolonged in cases of hepatic or renal failure.


Your Skin

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

Our Assessment

Avoid

Due to its documented systemic toxicity, ability to cross the blood-brain barrier, and the complete lack of any evidence for topical skin benefits or specific safety assessments for cosmetic use, Laudanosine is strongly advised against inclusion in skincare formulations.


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