The present invention relates to novel serine rich peptides capable of exhibiting antioxidative properties and that can be used to protect a cell, tissues, organs or a multi-cellular organism, such as animals, against oxidative stress. In aspects of the invention, the peptides may be derived from egg yolk proteins utilizing only generally recognized as safe (GRAS) compounds. The invention also relates to cosmetics, functional foods, food supplements or pharmaceutical formulations comprising the peptides of the present invention having antioxidative properties. The cosmetics, functional food or pharmaceutical products are particularly suitable for the care of the skin in protecting against oxidative stress and ageing phenomena.