Neutral dish soap lifts grease with surfactants, not neutralization
#0036 Home & daily life
Fact rank
A
Confirmed by the Japan Soap and Detergent Association
Wow rank
B
The reason it is "neutral" is a regulation, not skin care
Usefulness
B
A small advantage when choosing detergents
Verification: Supported by evidence
AI verification reports the evidence it found; it does not guarantee that a claim is true.
Neutral dishwashing detergent does not remove grime by neutralizing it; its surfactants make grease mix with water so it washes away.
Why
Surfactants act at the boundary between water and oil, wrapping the grease into tiny droplets (emulsifying it) and dispersing it in the water.Evidence
Secondary Japan Soap and Detergent Association on surfactants: they act at the boundary (interface) between water and oil and make them mix link
Secondary The same association: dish detergents emulsify and disperse grease with surfactants; dish detergents that can also wash vegetables and fruit are required by the Food Sanitation Act to be neutral, pH 6.0–8.0; skin irritation depends more on the surfactant composition than on pH link
Notes and limits
It is neutral because dish detergents that can also wash vegetables and fruit are required by the Food Sanitation Act to be neutral (pH 6.0–8.0). The industry body explains that skin irritation depends more on the surfactant mix than on pH. Weakly acidic and weakly alkaline dish detergents also exist today.
Derivations
Derived from: 汚れと洗剤は相性で選ぶ
Derived facts: —