Nowadays, "full face collagen" has become synonymous with youthful-looking. When seeking skin care secrets, you will hear a lot of talk about "increasing collagen" content, but what does it really mean? Dermatologists believe that collagen is the main structural protein in the skin, and it provides a lot of architectural space like scaffold, making the skin appear smooth and wrinkle-free.

Collagen loss begins in the early twenties. Environmental factors such as sun exposure and air pollution can break down collagen, contributing to the development of wrinkles. Of course, age is also a major factor. As we age, collagen production decreases, so the skin will appear thinner and less structurally supported, which is why people notice sagging skin.

Therefore, how to retain collagen and stimulate its rapid regeneration has become the ultimate goal pursued by beauty lovers. Here are 18 great recipes for preserving and increasing collagen.

Apply retinoids

Retinoids are derivatives of vitamin A, which can up-regulate genes related to collagen production. Research by dermatologists at the University of Michigan, Ann Arbor, published in the journal Cosmetic Dermatology, showed that participants' facial wrinkles improved after 12 weeks of applying retinoids-containing cream.