DS Laboratories Spectral.RS focuses on the many aspects that cause hair to thin, such as perifollicular fibrosis and internal factors like stress, hormonal instability, lack of vitamins and mineral salts, and from using certain medications. Perifollicular fibrosis is a situation that comes with all hair loss when collagen around the hair root becomes rigid and tightens, pushing the root to the surface and forcing premature hair loss. DS Laboratories Spectral.RS contains other ingredients that boost nutrition, circulation, and metabolism of the hair follicle.