Zoskin Retinol 0.5% is a professional-grade skincare treatment containing a potent concentration of retinol. This 50ml formula is designed to address signs of aging, improve skin texture, and promote cell turnover for a more youthful complexion. As this is a high-concentration retinol product (0.5%), it should be introduced gradually into your skincare routine. Begin using it 2-3 times per week and slowly increase frequency as your skin builds tolerance. Apply in the evening and always use sunscreen during the day, as retinol can increase skin sensitivity to UV rays.