Collagen it self does not work for saggy under eyes.

The skin around the eyes, consisting of the epidermis and dermis, is about 5 times thinner than other skin layers. As aging begins, the collagen and elastin within the framework, responsible for elasticity, rapidly decrease, leading to a weakened and saggy appearance.

The solution for tightening the saggy area under the eyes is found in 'Calcium'. Calcium plays a crucial role in supporting the collagen and elastin framework in the dermal layer of the skin.

Due to ingredient instability, calcium's standalone absorption has posed challenges for topical cosmetic development until now.

To enhance the absorption of ionized calcium, a patented ingredient combining Vitamin D effectively facilitates calcium absorption. This helps to securely retain collagen and elastin within the under-eye bone structure, preventing them from escaping.