Synergistic Skin Penetration Enhancement by a Combination of Tetrahydropiperine, 2,3‐Butanediol, and Hydrolyzed Glycosaminoglycans. - Wang, Bei; Zhao, Guojie; Peng, Jinghui; Ye, Qiulan; Chen, Xueping (Journal of Cosmetic Dermatology, 2026)