Question

What is a serum? For what it is used?

Answer 1

Answer:

Face serums are lightweight moisturizers that penetrate deeper to deliver active ingredients into your skin. ... Celebrity makeup artist Kristofer Buckle believes that using a serum regularly can give your skin a firmer, smoother texture, make pores appear smaller and increase moisture levels.

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Answer 2

$\underline{ \underline{ \underline{ \sf \: Serums -}}}$

Serums actually means blood plasma from which fibrinogen has been removed. It may contain numerous chemical substances including antibodies/antitoxins, etc.

It is used for -

• Preventive measure against bacterial invasion.
• Snake - bite treatment involves injecting the particular anti-venine produced from the blood of horses, etc.