This is the 11839th most frequent Spanish word.
hialurónico
"Hialurónico" refers to "hyaluronic," relating to hyaluronic acid, a substance found in the body that retains moisture and is used in skincare and medical treatments.
Here, 'hialurónico' is part of a compound noun (acid hyaluronic) referring to a specific chemical substance.
El ácido hialurónico es utilizado en productos para el cuidado de la piel.
Hyaluronic acid is used in skincare products.
In this case, 'hialurónico' acts as an attributive adjective accompanying 'cream', implying the cream contains hyaluronic acid.
Compré una crema facial con hialurónico para mejorar la hidratación.
I bought a facial cream with hyaluronic to improve hydration.
This sentence uses 'hialurónico' as an unbound noun referring to the acid discussed people are discussing more lately.