what exactly is "serum"?
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Join Date: May 2012
Thursday, December 27, 2012 at 09:52PM
To my knowledge the word serum is like the word milk, it refers more to consistency. Serums are light and most of what they do is cosmetic, like gel, and don't moisturize or otherwise contribute to bettering your hair. Most mainstream serums are -cone based, but there other serums made up of different ingredients, usually light oils.