Self-tan products used at home are typically?

Self-tan products used at home being of professional quality for personal use is correct because many brands have developed formulations that mimic the results of salon treatments while being accessible for at-home application. These products often contain advanced ingredients and technologies designed to provide a natural-looking tan, similar to what one might receive from a professional spray tan.

Over the years, the quality of self-tanning products has significantly improved, allowing users to achieve a more even and lasting tan without the need to visit a salon. These products are formulated to be user-friendly, requiring little skill and minimal application techniques, making them suitable for personal use while maintaining high efficacy.

In contrast, the other options suggest limitations that don't accurately reflect the evolution of self-tan products. For instance, they are not solely less effective compared to salon sprays; many at-home products can provide comparable results. Additionally, self-tan products come in various forms, including lotions, mousses, and wipes, not just sprays, and they are not primarily focused on skin treatments but rather on achieving a cosmetic tan.