Our expert says:
Hi Adela, thank you for the question.
Botox may be used to correct a gummy smile however this should only be performed by an experienced injector. If the dosage and placement of the Botox is not performed precisely a complete loss of the central lip elevators may be experienced leading to unwanted cosmetic results.
Juvederm and Restylane both use Hyaluronic Acid as the main active ingredient and the only two real differences is the way the bonding agent (BDDE) is applied to these HA molecules and that the final HA bonded gel consists of separate strands in Restylane while Juvederm has one continuous strand. Furthermore FDA approval studies show 6 to 9 month longevity for Restylane and a 12 month longevity for Juvederm (75% of all patients injected).
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