Hydrating concealers can be used on oily skin, but it's important to understand how they work and what to look for in a product to ensure it's suitable for your skin type.

Hydrating concealers are typically formulated with ingredients that help to moisturize and nourish the skin. These can include hyaluronic acid, glycerin, and various oils. While these ingredients are beneficial for dry skin, they can potentially exacerbate oiliness in individuals with oily skin.

However, not all hydrating concealers will worsen oily skin. Some formulations are designed to provide hydration while also controlling oil production. These products often include ingredients like salicylic acid, which can help to regulate sebum production, or silica, which can absorb excess oil and give a matte finish.

When choosing a hydrating concealer for oily skin, look for non-comedogenic products. These are less likely to clog pores, a common concern for those with oily skin. Also, consider concealers that are oil-free and have a lightweight, non-greasy formula.

Remember, everyone's skin is unique. What works for one person might not work for another. It's always a good idea to patch test a new product before applying it to your entire face.