Generally, serum are formulated to be gentle and suitable for various skin types, including sensitive, oily, dry, and combination. Look for a hypoallergenic serum free from common irritants, such as fragrances and harsh chemicals, to ensure compatibility with different skin types.

Individual reactions to skincare products can vary, so it's advisable to perform a patch test before applying the dark circle serum to the entire under-eye area. Some serums may contain specific ingredients like hyaluronic acid, peptides, or vitamins, which can provide hydration, promote collagen production, and brighten the skin.

These ingredients are generally well-tolerated by a range of skin types. Still, individuals with specific allergies or sensitivities should always check the product's ingredient list to avoid potential adverse reactions. 

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