Moisterizers may limit vitamin D absorption – they can contain sunscreens
Is the SPF in your moisturiser and foundation causing joint pain and lethargy?
ANTI-ageing beauty products containing sunscreen could be behind the growing problem of vitamin D deficiency
A world survey into tanning habits found that 95 per cent of Brits changed their make-up habits during the warmer months, using foundation and moisturiser with added sunscreen for the summer.
See also VitaminDWiki
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20 cent vitamin D pill similar to 2 hours sunbathing at 60 degree latitude – RCT Aug 2013
Noontime sun and D category listing with associated searches