Dear SamanthaJones001, Thank you for your clinical post. Juvederm Ultra is manufactured by Alergan, a very large publicly traded billion dollar company with extensive data on safety and advocacy for their Juvederm product line. It is a hyaluronic acid sugar gel with a specific proprietary crosslink in technology and has been around the marketplace for over 15 years with excellent safety data. Revanesse Ultra is manufactured by a private Canadian company called Prollenium. It is also a hyaluronic acid gel, which is manufactured to inject for deep folds, frozen lines. The problem with companies like Prollenium is they are small, less regulated and publicly traded companies and the health and safety data around their product is far less reliable. When selecting a centre select for the experience of the injector, but also for the product line and portfolio the products that they deploy. It is not that the Prollenium product line is not safe or efficacious it is just a little less known and certainly the company has far less resources for safety and efficacy studies. I’m sure you’ll get an excellent result and just select the clinic and the products that are injected carefully. I hope this information is of some assistance and best of luck. To find out more, please visit the link below. R. Stephen Mulholland, M.D. Certified Plastic Surgeon Yorkville, Toronto