Fight Anxiety and Fatigue with Collagen Peptides

Stress, poor sleep, and modern diets can cause skin dullness and joint stiffness. Collagen peptides not only support skin but also promote calmness and better sleep quality.
Ideal for busy professionals and students. Choose from capsules, drinks, or convenient gummies.
🌿 Dongkai Biotechnology provides OEM collagen supplement customization — pure ingredients, global standards, and market-ready private label packaging.