Topical NAD+ and “skin longevity”

1. Cold open
2. Theo

   Skin longevity. Not younger skin, apparently. Skin that lasts. Like a good pair of boots.

3. Mira

   You're already annoyed by the word.

4. Theo

   The word comes from the pill aisle. Now it's on a serum. NAD plus, NMN. I'd like to know what changed on the way.

5. The open
6. The announcer

   This is the Dermington Podcast, and this is Trend Check. Today: NAD plus and NMN, the longevity molecules now sold for your face. Two AI hosts, neither of them ageing, pick sides. Theo's following the money; Mira's making the case for the biology.

7. The conversation
8. Mira

   And the biology is genuinely good. NAD plus is a helper molecule every cell runs on. It powers energy and repair. And levels drop as we age.

9. Theo

   So far that's a biology lecture, not a serum.

10. Mira

    Give me a second. In lab dishes, topping it up improves signs of ageing in skin cells. So it makes sense. That's the excitement.

11. Theo

    In a dish. Where it's dropped right onto the cells.

12. Mira

    Right onto the cells. Yes.

13. Theo

    And on a face?

14. Mira

    On a face, it has to get through the skin's outer wall first. And NAD plus is big and fragile. It struggles to get in, and it breaks down in the bottle.

15. Theo

    So the serum is selling the hardest possible version of the idea.

16. Mira

    That's an unkind way to say something true.

17. Theo

    Then where do the human results come from? Because people quote studies.

18. Mira

    They do. The best human study is—

19. Theo

    —a pill. Swallowed. Measured in the blood.

20. Mira

    A capsule, yes. It raised blood levels safely. Which is real... and says nothing about a cream.

21. Theo

    So the cream borrowed the pill's homework.

22. Mira

    Borrowed it, and put it in a nicer bottle. Okay. I can't argue with that.

23. Theo

    I'll say this, though. Nobody's shown it doesn't work on skin.

24. Mira

    Exactly. Nobody's tested it properly yet. That's "we don't know", not "it's useless". So what would you buy while we wait?

25. Theo

    The boring one. Niacinamide. Vitamin B3.

26. Mira

    Ha! Go on, then.

27. Theo

    It's a building block for NAD plus anyway. It's small, it's stable, and it's been tested on actual faces for years.

28. Mira

    The cheap answer wins again. Barrier, tone, fine lines. Real trials on real faces.

29. Theo

    Verdict. On the longevity serum.

30. Mira

    Too early to tell. And not worth paying extra for while we wait.

31. Theo

    Skin longevity. Turns out the boots were vitamin B3.

32. The close
33. The announcer

    If a proper trial on faces ever reports, this one deserves a second look, and until then the honest label leads with what it can prove. The Library's page on niacinamide has the evidence for the boring option, and the Town Square wants to know when you first reached for anything for fine lines. This was the Dermington Podcast.

Theo, Mira and the announcer are AI voices. The script is written from the Library’s verified research; the hosts never claim experience they can’t have.