Light skin of UVA can penetrate deeply into the dermis in persons with light skin pigmentation with little protective melanin pigment. The characteristic of fair skin, red hair, and freckling is associated with high amount of pheomelanin, little amounts of eumelanin. This phenotype is caused by a loss-of-function mutation in the melanocortin 1 receptor (MC1R) gene. However, variations in the MC1R gene sequence only have considerable influence on pigmentation in populations where red hair and extremely fair skin is prevalent. The gene variation’s primary effect is to promote eumelanin synthesis at the expense of pheomelanin synthesis, although this contributes to very little
Beauty Is Only Skin Deep Skin Deep" was an R&B number-one hit, the Temptations' fifth, and reached number-three on the "Billboard" Pop Singles Chart. It was also a hit in the United Kingdom, making it to #18 on the UK Singles Chart in late 1966. The song never appeared on a regular Temptations studio LP, but was featured on the group's first "Greatest Hits" album. See "The Temptations" perform "Beauty Is Only Skin Deep" at this link Beauty Is Only Skin Deep "Beauty Is Only Skin Deep" is a 1964 song, that became a 1966 hit single recorded by The Temptations for the Gordy (Motown)