glutathione is a peptide Glutathione (1500mg)

Lucena-Cacace, A., Umeda, M., Navas, L

There is no known mechanism where NAD boosters down regulate your own production

However, because you are often exposed to free radicals, heavy metals, sunlight, caustic elements and other unfavorable factors, your skin color will gradually change back to its original color after a period of time

Astaxanthin, on the other hand, proved to be effective primarily against damage induced by UVB rays

This, in turn, should help boost absorption of nutrients

Significance: A gradual increase in headloss is normal as the filter operates, but sudden spikes may indicate an issue, such as air binding or media fouling