Nutraceuticals is a broad umbrella term that is used to describe any product derived from food sources with extra health benefits in addition to the basic nutritional value found in foods.
The following patent abstracts are of nutraceuticals that have possible cosmetic benefits.
1. Tetrapeptides and a method of use as an antioxidant
US Patent 9,795,551
Application No 14/315,585
Granted 24 October 2017
Antioxidants are compounds that can delay the oxidation of organic molecules by the inhibition of oxidising chain reactions.
Conventionally employed biologically-safe antioxidants include vitamin C, carnosine, glutathione and resveratrol.
Carnosine is a natural dipeptide that is innate to vertebrates and found to act as a pH buffer, iron-chelating agent and in lipid peroxidation.
Proteins may also have antioxidative activities against free radical oxidation of lipids and fatty acids, and certain peptides can react with free radicals to terminate the radical chain reaction.
Enzymes such as superoxide dismutase (SOD), catalase and glutathione peroxidase also play a key role in cellular defence against oxidative stresses.
A study of antioxidant properties of short polypeptide molecules by the applicants identified specific structure activity relationships and led to the discovery of