Pharmacist, formulator and nutricosmetics specialist Meritxell Martí, creator of Unique Pink, has written an article for Madame Figaro Mexico dedicated to peptides and their role in cosmetics, nutricosmetics and collagen production.
In the article, Meritxell explains what peptides are, how they act as biological messengers and why their function depends on the sequence of amino acids that make them up. A guide to better understanding these active ingredients, which are increasingly present in skincare and nutricosmetic formulas.
Peptides, collagen and skincare
Meritxell Martí explains that peptides are small chains of amino acids that form part of structures such as collagen and elastin and can also act as cellular communication molecules.
In cosmetics, there are different types of peptides with specific functions: some act as signals on fibroblasts, others are involved in communication between muscles and nerves, transport minerals such as copper, or help prevent the breakdown of collagen and elastin.
The role of collagen peptides in nutricosmetics
The article also includes a specific section on nutricosmetics and hydrolysed collagen. By breaking collagen down into smaller peptides, its absorption at the digestive level is facilitated. These peptides provide amino acids such as glycine, proline and hydroxyproline, which are involved in the formation of the body's own collagen.
Meritxell also highlights the importance of choosing formulas that combine collagen peptides with other nutrients, such as vitamin C, hyaluronic acid, silicon, zinc or carotenoids, to achieve a more complete and synergistic formulation. An approach that directly connects with the formulation philosophy behind Unique Pink Collagen, the product that marked the beginning of the Unique Pink range.
The full article, published on 1 September 2026, is available at Madame Figaro Mexico.