Propolis is a mixture of substances used by bees to defend their hive. This protection consists of filling cavities in the walls of the hive, reducing entry on cold days, and also mummifying the required intruders, thus preventing their decay. This explains why propolis is also known as bee glue (Kędzia, B. et al 2008).

Resveratrol is a polyphenol whose main natural sources are red grapes, red wine, berries, and peanuts.

Melasma is a chronic and acquired hyperpigmentation skin disorder that presents with symmetric hypermelanosis of areas exposed to the sun, especially the face.

Hydrolyzed collagen is still being discussed both in clinical practice and among the scientific community.