@APURVA_11 ji,
Cosmic Serums with VK are completely safe to use it do not harm anyone.
This is written in articles the more you read more you will get attached to divine VK and it help you to become an independent healer.
( If you are charging with Alpha woman Serum and Fem Serum then please keep in mind they are for womens only.)
Other Energy requests are also safe with VK just keep intention with Safety and Security.