Comparative tests on skin irritation and biodegradation conducted by CTI (Centre Testing International) show that microbial‑derived rhamnolipid contains none of the sensitizing ingredients commonly found in traditional AES and alkylphenol surfactants, and poses low soil residue risk. The data indicate its suitability for applications such as baby care products, agricultural adjuvants, oil‑contaminated soil remediation, and pharmaceutical excipients, positioning it as a highly safe green surfactant choice.