MPOD and Skin Carotenoid Comparison:

 

Image from reference 2: Conrady, CD, et al.

With regard to prediction of MPOD from LifeMeter score, a relatively high density (0.60 MPOD) is typically seen at or around a score of 400.1

An additional way to measure skin carotenoid value is Resonance Raman Spectroscopy (RRS).

LifeMeter score can be derived by multiplying the RRS score by 0.01.

So an RRS score of 40,000 = 400 for LifeMeter.1