A Bachelor of Science (BS) in Dermatology is not a standard undergraduate degree. Instead, the field of dermatology is typically entered through a medical degree (MD or DO) followed by a dermatology residency. However, there are related programs, such as a BS in Dermal Technology, that offer a different path into the field.
Based on the provided references, a BS in Dermal Technology program typically consists of 8 semesters (4 years) of full-time study. This is consistent across multiple universities offering similar programs, such as the program detailed at The University of Faisalabad (TUF). https://tuf.edu.pk/n/course-detail/bs-dermal-technology
Other programs, like those in aesthetic and cosmetology, may also involve 8 semesters. For example, Superior University in Lahore offers an 8-semester BS in Aesthetic and Cosmetology program. https://www.superior.edu.pk/faculties/faculty-of-allied-health-sciences/bs-aesthetic-and-cosmetology/
To reiterate: A direct "BS in Dermatology" is not a typical academic path. The number of semesters will vary depending on the specific program title and the institution offering it. Programs focusing on dermal technology or related aesthetic fields often have an 8-semester structure.