Yes, you can use snail mucin and azelaic acid together in your skincare routine. Snail mucin is known for its hydrating and soothing properties, while azelaic acid is a multifunctional ingredient that can help with brightening the skin, reducing hyperpigmentation, and controlling acne. Both ingredients can be beneficial for different skin concerns.

When using these ingredients together, it's important to consider the concentration and formulation of the products you are using. Start by using them on alternate days to assess how your skin reacts and gradually increase the frequency if your skin tolerates it well. It's always a good idea to patch test new products and consult with a dermatologist if you have any specific concerns or sensitivities.

As with any skincare routine, it's important to listen to your skin and adjust accordingly. If you notice any irritation or discomfort, it's best to discontinue use or seek professional advice.