1-Hydroxyethyl 4,5-Diamino Pyrazole Sulfate: CIR Safety Assessment Summary
CIR safety assessment summary for 1-Hydroxyethyl 4,5-Diamino Pyrazole Sulfate: ingredients reviewed, panel verdict, use concentration context, conditions,.
1-Hydroxyethyl 4,5-Diamino Pyrazole Sulfate appears in a CIR safety assessment covering 1-Hydroxyethyl 4,5-Diamino Pyrazole Sulfate. The panel verdict for the report is Safe in the present practices of use and concentration in oxidative hair dye formulations. The Expert Panel for Cosmetic Ingredient Safety concluded 1-Hydroxyethyl 4,5-Diamino Pyrazole Sulfate is safe as an oxidative hair dye ingredient in the present practices of use and concentration.
| Field | CIR value |
|---|---|
| Primary ingredient | 1-Hydroxyethyl 4,5-Diamino Pyrazole Sulfate |
| CIR verdict | Safe in the present practices of use and concentration in oxidative hair dye formulations |
| Report type | CIR Supplement Manuscript |
| Date | 2022 |
| CAS numbers | 155601-30-2 |
| Use concentration context | present practices of use and concentration described in the safety assessment |
| Conditions or carve-outs |
Ingredients Reviewed
The review scope matters because CIR conclusions often apply to an ingredient family rather than a single INCI name. In this report, the ingredient list includes 1-Hydroxyethyl 4,5-Diamino Pyrazole Sulfate.
Safety Conclusion
The conclusion for 1-Hydroxyethyl 4,5-Diamino Pyrazole Sulfate should be read as a CIR panel conclusion, not a regulatory limit. CIR assessments summarize expert-panel safety determinations for cosmetic use, while legal status still depends on the jurisdiction and product category.
For use levels, the report gives this concentration context: present practices of use and concentration described in the safety assessment. That language is the safe-use context shown for this page.
Conditions
The Expert Panel for Cosmetic Ingredient Safety concluded 1-Hydroxyethyl 4,5-Diamino Pyrazole Sulfate is safe as an oxidative hair dye ingredient in the present practices of use and concentration.
Formulation Reading
For formula review, begin with the exact INCI identity and the ingredient group covered by the CIR assessment. If the material is 1-Hydroxyethyl 4,5-Diamino Pyrazole Sulfate, the relevant comparison is whether the intended use aligns with the practices, concentration ranges, and conditions described in the CIR source.
The ingredient hub at 1-Hydroxyethyl 4,5-Diamino Pyrazole Sulfate should carry the substance-level profile. This page is the report-level summary, keeping the conclusion, ingredient scope, and use-context language attached to the CIR source rather than treating the conclusion as a universal permission.
Why This Page Exists
CIR reviews are long documents, and the practical answer is usually buried in the conclusion and the table of current practices. This summary keeps those CIR facts in one indexable page for 1-Hydroxyethyl 4,5-Diamino Pyrazole Sulfate, with source details retained at the bottom for audit.
Source
- CIR report: Safety Assessment of 1-Hydroxyethyl 4,5-Diamino Pyrazole Sulfate as Used in Cosmetics
- CIR source file: PRS705.pdf
- Extraction JSON: CIR Safety Assessment Database
- Conclusion page in CIR extraction: 10