For the Curious Health Conscious Minds: 

Below are selected studies that explore the nutritional use of collagen and astaxanthin in the context of skin health and antioxidant support. These are shared as general educational references and are not specific to Dodi Health products.

• Yoon et al., 2014
  A 12-week placebo-controlled study combining collagen hydrolysate with astaxanthin observed changes in skin elasticity and barrier integrity.
  

• Tominaga et al., 2017
  A 16-week double-blind trial reported findings on skin texture and wrinkle development in participants supplementing with astaxanthin.
  
  

• MDPI Molecules, 2022 Review
  A review of human studies noted outcomes relating to skin hydration, elasticity, and overall appearance.