As a blogger concerned about the environment, I've recently been researching the sustainability of azelaic acid. Produced from natural sources like wheat, rye, and barley, azelaic acid has become popular in skincare products due to its effectiveness in treating acne and rosacea. However, its environmental impact is worth considering. From what I've gathered, azelaic acid doesn't appear to have significant negative effects on the environment, especially when compared to other chemicals used in skincare products. Nevertheless, it's crucial to continue monitoring the production and usage of this ingredient to ensure its sustainability in the long run.