Skin is not just a matter of aesthetics: it is also a matter of metabolism.

What do skin density and firmness really depend on? The quickest answer is usually “moisturiser.” But the reality is more interesting. The skin is also nourished from within, through metabolic processes that every day build, maintain and renew its layers.
Skin structure depends mainly on three elements: collagen, elastin and the level of tissue hydration. And all three are directly influenced by what we eat.

The nutrients that make a difference

There isn’t a single “superfood” capable of transforming the skin overnight. What does exist is a set of nutrients that, over time and with consistency, support the biological functions on which skin health depends.

• Protein and vitamin C
  They are essential for collagen synthesis, the skin’s main structural protein. Vitamin C also acts as an indispensable cofactor in this process.
• Fruits and vegetables with intense colours
  Rich in carotenoids and polyphenols, they provide antioxidants that help combat the oxidative stress associated with skin ageing.
• Healthy fats
  Extra virgin olive oil, nuts and oily fish help maintain the skin barrier and promote tissue hydration.
• Hydration
  Water is the basis of all metabolic processes. Maintaining proper hydration contributes to firmer, more elastic and more radiant skin from within.

The silent enemy: glycation

On the other hand, a diet high in refined sugars and ultra-processed foods can trigger a process called glycation. In this process, glucose molecules attach to collagen fibres, gradually making them more rigid and less elastic.

Glycation is one of the biological mechanisms that contribute to the loss of skin elasticity over time. It doesn’t happen immediately but builds up silently over the years. That’s why daily habits matter much more than they might seem.

A comprehensive approach, not a magic solution

Is there a miracle food for the skin? No. And any promise of extraordinary results based on a single ingredient or product oversimplifies a much more complex biology.
What does exist — and is supported by science — is a comprehensive approach to skin care that combines:

• A balanced diet rich in vegetables, quality fats and adequate protein
  
• Restorative sleep, during which the skin activates its regeneration processes
  
• Regular physical activity, which improves circulation and tissue oxygenation
  
• Daily sun protection, key to preventing damage caused by UV rays
  

And, when necessary, targeted supplementation to help meet nutritional needs that diet alone may not fully cover.

Taking care of your skin isn’t about a single action, but about a set of habits that, maintained over time, make the difference.