moon light is sunlight reflected off the moon, skin produces vitamin D when exposed to the UVB rays from sunlight. The amount of light reflected back from the moon is relatively low and so the skin does not react as strongly to it. sunlight on its own does not contain vitamins.
The singular possessive of "moonlight" is "moonlight's."
moonlight's
In Moonlight was created in 1904.
she danced gracefully in the moonlight
The clouds obscured the moonlight. The moonlight allowed me to walk home without a flashlight. Bright moonlight means it is harder to see the stars.
It is not moonlight it is the moon reflecting the sun's light
Moonlight Whispers was created in 1999.
Moonlight on Water was created in 1989.
Box of Moonlight was created in 1996.
Moonlight Agony was created in 1999.
Portraits in Moonlight was created in 1964.
Moonlight Waltz was created in 2010.