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GUANAZOLE.

Questionable CAS 1455-77-2 / NOT REPORTED

Guanazole is a chemical entity primarily identified as an antineoplastic agent, functioning through the inhibition of ribonucleotide reductase activity and DNA synthesis via tyrosine free radical scavenging. This mechanism is specific to pharmacological applications and does not translate into a typical cosmetic action on healthy dermal tissue.

Science

Guanazole exerts its effects by interfering with fundamental cellular processes, specifically inhibiting ribonucleotide reductase activity and DNA synthesis. This is achieved through the scavenging of tyrosine free radicals, a pharmacological pathway distinct from any known or typical mechanism relevant to cosmetic applications on healthy skin.


Research

Low confidence
Effective range N/A
Optimal

N/A


Transparency

Not commonly dusted

Guanazole is not recognized as a cosmetic ingredient, and therefore, there is no indication of it being commonly 'dusted' or used in cosmetic formulations at any concentration.


The Formula

Solubility
Water
Optimal pH N/A
0 7 14

Safety

CIR Status
Not reviewed
Sensitization risk Unknown

Regulatory bodies such as the Cosmetic Ingredient Review (CIR) and the Scientific Committee on Consumer Safety (SCCS) have not reviewed Guanazole for cosmetic purposes, leaving its safety profile for topical application unestablished. Furthermore, the FDA does not list it as a permissible ingredient in cosmetic products.


Your Skin

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

Our Assessment

Questionable

Given Guanazole's established role as a pharmaceutical agent and the complete absence of any data supporting its safety, efficacy, or regulatory approval for cosmetic use, its inclusion in skincare formulations is highly questionable.


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