First and foremost, China has established stringent national standards for detergents that come into direct contact with food (GB 14930.1-2015). Standardization has been implemented. This standard clearly defines the permissible limits for the scope and dosage of raw materials, as well as the residual levels of harmful substances such as arsenic, heavy metals, methanol, and formaldehyde in the final products. This means that dishwashing detergents sold through formal channels in the market must comply with national safety regulations, ensuring fundamental safety from the source.

Secondly, from a toxicological perspective, commonly used surfactants in detergents, such as sodium linear alkylbenzene sulfonate (LAS), sodium lauryl ether sulfate (AES), and fatty alcohol polyoxyethylene ether (AEO), after extensive animal testing and risk assessment, have been confirmed to have very low acute toxicity (median lethal dose LD50 all are greater than 1000 mg/kg body weight), which are classified as low-toxicity or practically non-toxic substances. Their skin irritation potential has been thoroughly studied and minimized through formulation techniques, such as blending amphoteric surfactants.

The public is concerned about the "residual" issue. National standards also stipulate that fluorescent whitening agents must not be added to detergents, and there are restrictions on the content of volatile substances such as methanol. As long as the product instructions are followed for proper dilution and rinsing, the residual levels are far below those that could cause harm to the human body. In daily life, we can ensure thorough rinsing (it is recommended to rinse with running water for at least 30 seconds) to further reduce any potential residue.

Therefore, consumers do not need to have a "fear of chemistry." Understanding the properties of surfactants scientifically and using compliant products correctly and reasonably are key to safeguarding health. The existence of these standards, data, and regulations is precisely to correct public misconceptions and ensure everyone can use them with confidence.