DS Laboratories Spectral RS serum against thinning and hair loss 60 mlHair care with Aminexil and copper peptides . DS Laboratories Spectral RS serum against thinning and hair loss is based on the principle of advanced biotechnologies , which allow maximum use of the potential of active substances. The strong complex of active substances contains aminexil, adenosine, retinol and copper peptides and works as a unique rejuvenating treatment for your hair . It strengthens the hair, improves its quality and nourishes the