GrandeHAIR Rejuvenation Serum promotes fuller, healthier looking hair. Formulated with amino acids, peptides, and vitamins, this serum supports hair follicle health. Consistent use of the serum may show visible improvements in hair appearance within eight weeks, with continued enhancements over four months. Suitable for both men and women, it is also dermatologist-tested and cruelty-free. See an improved appearance in 8 weeks, with full improvement in 4 months.