Hi, I got an offer to do lip filler , but as I...

Dear Customer
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Is lip fillers safe and effective ?
yes , most of time and if its done by a professional doctor and user ( you ) followed doctor instruction , fillers will safe and effective 
What is lip fillers side effects ?
1. pain
2. swelling 
3. infection
4. unpleasnt results 
Sofiderm or juvederm , which one is the best ?
both of those filler brands contain the same content which is hyaluronic acid ,and we cant for sure find out which one is the best , but generally speaking , juvederm is more widely used and accounted as one of the best fillers brands 
General advices :
1. consult your doctor about your filler type and what is the instructions after using it 
2. in case of any severe side effects , reconsult your doctor as soon as possible 
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Kind Regards