Compositions and methods are disclosed for improving the healing of surgical wounds, and specifically for improving the survival rate, color retention rate, density, and scarring rate of a hair follicular graft following a hair transplantation surgery. The composition may be a suspension for injection proximal to the surgical graft recipient site, with the suspension comprising 0.4-0.5 mL of a suspension of an autologous platelet solution of at least 1 billion platelets at a concentration exceeding 1.5 billion platelets per mL, about 20 mg of granulated extracellular matrix, and about 40 mg of triamcinolone acetonide.
