Detailed answer

Serums can be effective spot treatments due to their concentrated formulation and targeted ingredients. They are designed to penetrate deeply into the skin and deliver active ingredients directly to the problem area. To use a serum as a spot treatment, apply a small amount directly on the affected area and gently massage it in. Depending on the specific concern, such as acne, hyperpigmentation, or fine lines, choose a serum with ingredients like salicylic acid, vitamin C, or retinol. It is important to follow the instructions and guidelines provided by the serum manufacturer for best results.