: Photochem Photobiol. 2009 Sep-Oct;85(5):1265-6. Epub 2009
Do melanoidins induced by topical 9% dihydroxyacetone sunless tanning spray inhibit vitamin d production? A pilot study. Armas LA,
Fusaro RM,
Sayre RM,
Huerter CJ,
Heaney RP.
Osteoporosis Research Center, Creighton University, Omaha, NE.
We report here preliminary pilot study data of the effect of sunless tanning spray with 9% [Correction added after online publication (August 24th, 2009): The concentration of Dihydroxyacetone used in the study was 9% and not 3% as previously stated] dihydroxyacetone (DHA) on 25-hydroxyvitamin D [25(OH)D] serum levels in subjects exposed to controlled amounts of UV-B radiation during April/May in Omaha, NE, 41 degrees N latitude. We found that DHA-induced melanoidins in skin act as a topical sunscreen attenuating the formation of 25(OH)D.
PMID: 19496990 [PubMed - in process]
Source Link:
http://www.ncbi.nlm.nih.gov/pubmed/1...ubmed_RVDocSum