Well-groomed hair is a symbol of beauty for many black African women. Natural hair requires special care and attention, though, which can be time consuming. Wigs (human or synthetic hair), weave-ons and other artificial hair extensions offer women an alternative to their natural hair. Well-groomed hair is a symbol of beauty for many black African women. Natural hair requires special care and attention, though, which can be time consuming. Wigs (human or synthetic hair), weave-ons and other artificial hair extensions offer women an alternative to their natural hair. Analytical Chemistry Phys.org – latest science and technology news stories