What type of product is typically recommended to enhance shine in hair?

Hair serum is typically recommended to enhance shine in hair because it contains ingredients designed specifically to provide a smooth and glossy finish. These products often include silicones, oils, or other emollients that coat the hair, helping to reflect light and create a shiny appearance. By smoothing the cuticle layer of the hair, serums not only enhance shine but also reduce frizz and improve the overall texture of the hair.

Coloring agents can alter the hue of hair but do not inherently add shine. While certain colors may reflect light differently, they do not work specifically to improve shine in the same way that hair serums do.

Moisturizing shampoos are excellent for improving hair hydration and health but are not primarily formulated to enhance shine. Their main purpose is to cleanse and hydrate the hair, which can lead to a healthier look, but they don't provide the reflective properties that serums do.

Heat protectants are designed to protect hair from damage caused by styling tools. While they may offer some level of shine due to their silicone content, their primary function is to create a barrier against heat, not to enhance shine specifically.

Thus, hair serum stands out as the best choice when looking to enhance shine due to its formulation and purpose.