Hydroquinone and hyaluronic acid are two different skincare ingredients with distinct functions.

Hydroquinone is a skin-lightening agent commonly used to treat hyperpigmentation and dark spots. It works by inhibiting the production of melanin, the pigment responsible for skin color. Hydroquinone is typically used in concentration of 2% or less and is available over-the-counter or by prescription.

On the other hand, hyaluronic acid is a natural substance found in the skin that helps retain moisture, improve hydration, and promote a plump and youthful appearance. It is often used in skincare products to provide hydration and improve the overall texture and elasticity of the skin.

In general, there is no harm in using hydroquinone and hyaluronic acid together in your skincare routine. They have different mechanisms of action and can complement each other's effects. However, it is important to note that hydroquinone can sometimes cause skin dryness and irritation, especially when used in higher concentrations or for prolonged periods. In such cases, hyaluronic acid can be beneficial in providing hydration and soothing the skin.

As always, it is advisable to consult with a dermatologist or skincare professional before incorporating any new products into your routine, especially if you have sensitive or reactive skin. They can provide personalized recommendations based on your specific skin concerns and needs.