Consume high-quality protein (tofu, fish) for skin elasticity.

Collagen and elastin, which make up the dermis layer of the skin, are ultimately proteins.
Consuming high-quality protein, such as tofu or fish, which are easily digestible and rich in unsaturated fatty acids, rather than high-fat meats, is much more beneficial for maintaining skin elasticity.
In particular, the omega-3 fatty acids in fish help suppress skin inflammation and lock in moisture, preventing dryness.
A diet low in protein can cause dull skin and wrinkles, so make it a habit to include healthy protein in every meal.
You can feel the change coming from within, from complexion to elasticity.