But several factors work against this natural recovery process, including age (collagen production drops roughly 1% per year after age 20), the amount of weight lost (more than 50 pounds creates significantly more laxity), how long the excess weight was carried, sun damage history, smoking, genetics, and the speed at which the weight came off
Falsig AL, Gleerup CS, Knudsen UB
The next section answers common questions and ties together the themes of this guide
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The enzyme glutathione reductase, which requires NADPH as a cofactor, recycles GSSG back to GSH, maintaining this ratio [2]
Both reported pain relief and no adverse effects, but these studies are far too limited to draw conclusions about efficacy or safety in humans7