"Slow aging" is the new label on an old shelf: the word "anti-aging" left back in 2017, and 2026's rebrand mostly changed the vocabulary, not the bottle.
- "Biological age" and "prejuvenation" are borrowed from longevity labs, not results your serum can measure.
- One private read of 4,000-plus millennial Reddit comments put hormonal and life changes (207 mentions) just ahead of anti-aging (185); people ask about perimenopause, the shelf sells wrinkles.
- The headline "$110 billion scalp-as-skincare" market is mostly the whole hair-care industry relabeled; scalp-specific products are closer to $10 to $15 billion.
- PDRN's repair evidence is for the injected form; a topical may hydrate, but "rivals injectables" outruns what a cream is shown to do.
The test stays the same: read the ingredient list from the bottom up and ask at what percentage the active shows up.
