The Vita-A Retinol Shot Tightening SerumSize: 30ml Description: Celimax The Vita A Retinol Shot Tightening Serum firms skin elasticity and tightens enlarged pores with 0. 1% Pure Retinol and Peptides through the A Shot ingredient. The A Shot ingredient features micro sized particles smaller than pores that aid the absorption of active ingredients and delicately stimulate the skin for a tightening effect. 0. 1% Pure Retinol accelerates the skin cell turnover cycle and stimulates collagen