Preservative

5-Bromo-5-Nitro-1

Preservative (antimicrobial; formaldehyde releaser)
Limited Data
Insufficient safety data available. Consider enriching this ingredient.
Details

Description

Preservative (antimicrobial; formaldehyde releaser)

Purpose

Function

Preservative (antimicrobial; formaldehyde releaser)
Profile

Properties

Silicone
Silicone free
Compliance

Regulatory Status

EU
Permitted
Safety
MODERATE
US
Permitted
EU Max Concentration0.1%
Absorptionlow
Sensitizationmoderate
MoSadequate
NOAEL50 mg/kg
ConcernHigh
Verdict

Formaldehyde releaser that requires careful formulation to avoid nitrosamine formation; must not be used with nitrosating agents or amine/amide-containing ingredients; requires formaldehyde labeling if free formaldehyde exceeds 0.05%.

US Note

CIR concluded safe up to 0.1%, except where it can form nitrosamines/nitrosamides with amines or amides

Assessment

Ratings

Comedogenic0/5
LowHigh
Irritancy0/5
LowHigh
Reference

Identifiers

Category
Preservative
Updated
Apr 23, 2026

No registry identifiers available for this ingredient.