Chapter 409 Staying Up Late For Research

• After practicing for a while, Ye Tian asked Wang Bintiger to look after the house and drove to the laboratory.
• The wrinkle cream from the previous batch had already been made, but the production process still needed some adjustments. Zhu Hongyan had called several times, but he hadn't had the time to go.
• In addition to the cream, he also needed to prepare some medicine to treat Bai Bing's burns and help her recover her beauty as soon as possible. This required experimentation as well.