Trehalose is not your ordinary sugar, but it does have a Glycemic Index. Some people use it to sweeten their tea; it makes the amyloid plaque that accumulates as a metabolic byproduct disappear.
Next, we have EGCG which regenerates telomeres when regularly taken in large amounts.
Third, lycopene reverses methylation.
I'm big on resveratrol. You should take as much resveratrol as you can.
Finally, BioPQQ reverses the histological decline in mitochondrial density.