Retinol and Retin-A are essentially the same, except retinol is exclusively an over-the-counter solution. Both products are retinoids designed to promote skin cell rejuvenation, according to WebMD.
Full Definition of UNDERGRADUATE. : a student at a college or university who has not received a first and especially a bachelor's degree. â undergraduate adjective.See undergraduate defined for English-language learners. See undergraduate defined for kids.ull Definition of UNDERGRADUATE. : a student at a college or university who has not received a first and especially a bachelor's degree. â undergraduate adjective. See undergraduate defined for English-language learners.
A mature, non-traditional, or adult student in tertiary education (at a university or a college) is normally classified as an (undergraduate) student who is at least 21â23 years old at the start of their course and usually having been out of the education system for at least two years.