The Lab
Specimen No. 0093
AvoidSynthetichousehold chemicalcleaning agent

Sodium Hypochlorite (Bleach)

sodium hypochlorite · bleach · household bleach

Powerful disinfectant that reacts with organic matter to form chlorinated byproducts including chloroform and chloramines. Effective but generates toxic off-gassing indoors.

high confidence
Researched April 18, 2026

Concerns

  • Produces chloroform and chlorinated volatile organic compounds (CVOCs) during use
  • Generates chloramines when mixed with ammonia — acutely toxic
  • Respiratory irritant — harmful to lung tissue with regular indoor use
  • Aquatic toxicity and environmental persistence of chlorinated compounds

Regulatory flags

  • Forms chloroform and other trihalomethanes when mixed with organic matter
  • Never mix with ammonia — produces toxic chloramine gas

Commonly found in

Household bleachDisinfectant cleanerPool treatmentMold remover

Research disclaimer: This rating is based on available peer-reviewed research and regulatory assessments at the time of publication. It is not medical advice. Consult a qualified professional for personal health or skin concerns.

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Safer swaps · Research references

Branch Basics

Branch Basics Concentrate

96/100

One bottle replaces your entire cleaning cabinet.

Why it's cleaner

No flagged ingredients in our current review; key ingredients include Coco glucoside, Decyl glucoside, Chamomile extract.

Coco glucosideDecyl glucosideChamomile extract
View product

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