It serves as an effective antimicrobial agent, helping to prevent the growth of bacteria, fungi, and other microorganisms in cosmetic products. DDAC is known for its broad-spectrum activity, making it a popular choice in various personal care items such as shampoos, soaps, and lotions. Its primary function is to ensure the safety and longevity of these products by inhibiting the growth of harmful microbes that could potentially cause skin infections or product spoilage.

Advantages:
Firstly, it acts as a powerful antimicrobial agent, effectively eliminating harmful bacteria, fungi, and viruses that may be present on the skin. This helps to maintain a hygienic environment and prevent the spread of infections. Additionally, DDAC possesses excellent surfactant properties, allowing it to effectively cleanse the skin by removing dirt, oil, and impurities. This makes it a valuable ingredient in various skincare products, such as cleansers and toners. Moreover, DDAC has been found to have a low irritation potential, making it suitable for use on sensitive skin. It helps to soothe and calm the skin, reducing redness and inflammation. Lastly, DDAC also acts as a preservative, extending the shelf life of cosmetic products by preventing the growth of microorganisms.

Disadvantages:
It can be quite irritating to the skin and eyes, especially when used in high concentrations. This can lead to redness, itching, and discomfort for individuals with sensitive skin. Secondly, DDAC has the potential to cause allergic reactions in some people, which can manifest as rashes or hives. Additionally, there are concerns about its potential toxicity and environmental impact, as it is not easily biodegradable and can accumulate in aquatic ecosystems.

Conclusion:
Extensive research and studies have demonstrated its effectiveness as a disinfectant and antimicrobial agent, making it a valuable ingredient in various cosmetic products. DDAC has been found to effectively inhibit the growth of bacteria, fungi, and viruses, thereby reducing the risk of infections and promoting overall skin health. Furthermore, its low toxicity profile and compatibility with other cosmetic ingredients make it a safe and reliable choice for formulation. However, further research is still needed to fully understand its long-term effects and potential interactions with other compounds.

References:
https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4206748/
https://echa.europa.eu/substance-information/-/substanceinfo/100.027.751