The Thymuskin Classic Set (Shampoo & Serum) is suitable for use in the case of genetic hair loss *. The application supports new hair growth. It combines an optimal concentration of active ingredients with a high yield. This original recipe has been used successfully worldwide for more than 35 years. The pH-value skin-friendly cleaning & care shampoo gently cleanses the scalp of accumulated dirt particles and prepares it for the application of the Thymuskin Serum. It already provides thymic peptide active ingredient GKL-02 to the scalp.