What are the differences between red and blue LED lights for skin treatment?

Read also:

• What K-pop song would be good for Halloween?
• Despite practicing at CB and WR, Bo Melton won’t compare himself to Travis Hunter - NBC Sports
• Do Brits realize that Andrew Tate is the one who will liberate their country from tyranny by becoming prime minister?
• Are democrats inherently stupid or just lazy? They can Google " Ohio is investigating reports by residents that migrants are eating the local wildlife " why can't they seem to do the most simple things? Blind, ignorant, stupid or obtuse?
• Does the U.S military really prosecute military staff for cheating on their spouse, or do they close one eye if the cheating does not involve other military personnel since adultery is fairly common? Adultery is illegal in U.S military
• High-Average, Low-Slugging Hitters Are Back, and Baseball Is Better for It - Sports Illustrated
• Are you happy with your life?
• Hillingdon heraldic designer appointed MBE for royal cypher - BBC
• Why do Puerto Ricans come to this country flying their flags over in the United States all over their cars? They're so proud of their country. Why are they here?
• What can you do if someone makes a false accusation against you?
• Aubrey Anderson-Emmons cleverly comes out as bi with help from this 'Modern Family' scene - Yahoo
• Lake Tahoe: 'The water was just screaming,' says witness of boat tragedy that killed eight - BBC
• What are your thoughts on Italian nationalist poet Gabriele D'Annunzio, who was the subject of the documentary "Fiume o morte!"?