For strong need of care, providing extra-rich ingredients ideal for severe thinning and chronic scalp imbalance. Formulated with a concentrated GKL–02 Thymic Peptide Complex to deeply nourish the scalp and strengthen hair. For Application to the Scalp Suitable for unisex use, supporting healthier, fuller-looking hair with consistent application. Dermatologically tested and free of side effects, for long-term use. THYMUSKIN Forte Serum – Step 2 of 2 in the Thymuskin System, provides extra-rich support for severe thinning & chronic scalp imbalance, suitable for unisex & promoting fuller-looking, healthier hair (3-Pack)