Under the Dietary Supplement Health and Education Act (DSHEA), a dietary supplement must contain a dietary ingredient (such as a vitamin, mineral, herb/botanical, amino acid, or other dietary substances used to supplement the diet)
During summer, increased UV exposure leads to a surge in free radicals, which can damage skin cells and accelerate aging
In addition, researchers have found that the aging of cartilage is not caused by telomere wear and aging of mature chondrocytes, but is attributed to a group of progenitor cells (Fellows et al., 2017)
This study suggested for the first time that GH might regulate the peripheral clock system by affecting the expression of CLOCK and PERIOD genes in humans
10.3390/nu7075246 161 ShabaniS.RabieiZ.Amini-KhoeiH