ZL Medspa

ZL Medaesthetics and Larson Plastic Surgery are recognized as exclusive providers for the RHA collection of fillers. RHA, or Resilient Hyaluronic Acid. These hyaluronic acid fillers are the latest and most technologically advanced, and provide the most natural looking injectables available for up to 15 months. RHA fillers are only available from injectors who have the most training, highest levels of patient satisfaction, prioritize patient safety, and are considered industry leaders.

ZL Medspa


Clean Beauty

RHA fillers are specially made using a more gentle manufacturing process to create the flexible, long-lasting gel. Unlike other fillers, the RHA fillers are modified the least, allowing for the preservation of the natural entanglements of hyaluronic acid. This means the hyaluronic acid gel in RHA fillers most closely resembles your body’s own natural Hyaluronic Acid.

Swiss Technology

RHA fillers were developed in the Swiss Laboratories of Teoxane in 2015. They became available in the US in 2020 and were only offered to board certified plastic surgeons and dermatologists. At ZL Medaesthetics and Larson Plastic Surgery, we were among the first practices to begin using these advanced, latest fillers. Our providers have injected hundreds of RHA fillers and can attest to their superior clinical efficacy and preservation of natural expression.

Flexible Fillers for Faces in Motion

Long gone are the fillers that made you look full and puffy, or worse, migrate in the face unexpectedly. RHA fillers are the most flexible, natural-looking fillers available in the US. These fillers are placed in the areas of dynamic motion that have caused etched-in lines over the years, especially in the areas around the mouth and cheeks. With RHA fillers, you can expect to have full natural expression, but at rest, the etched-in lines will be softened.

RHA is available in three strengths to give the injector the best fit for your skin.

  • RHA 1

This filler is designed to smooth superficial fine lines and wrinkles on the face, neck and chest, or décolletage.

        • RHA 2 

        RHA 2 is an ideal filler for smoothing and filling lines on the cheeks and around the mouth. RHA 2 is also ideal for lip augmentation. 

        • RHA 3 

        The RHA 3 filler is most appropriate for the corners of the mouth, moderate nasolabial folds (lines or creases from the nose to the mouth), and deeper lines from the mouth to the chin.

          • RHA 4 

          RHA 4 is especially designed to be injected more deeply, allowing us to treat deeper dynamic facial wrinkles, creases, lines and folds.


          Men or women who would like to rejuvenate their appearance and plump or sculpt their features, and reduce wrinkles, lines and creases, are likely ideal candidates. Candidates must meet the following requirements: 

          • Are 22 years old or older 
          • Are generally in good health
          • Do not have an allergy to lidocaine
          • Are not pregnant or breastfeeding
          • Do not have an active skin infection (such as an acne breakout or rashes)
          • Have realistic expectations for what RHA fillers can achieve
          Young Women And Man On The Beach

          A Natural and Balanced Approach to Facial Fillers

          with Laura Zimmerman NP

          When in the hands of our expert injector, Laura Zimmerman, RHA fillers provide a refreshed and natural look when applied to wrinkles and folds on the face. Laura is known for her ‘less is more’ approach to injectables and is sought after for her techniques with microcannulas and lip restoration. 

          You can expect a consultation with Laura or Dr. Larson prior to receiving any injectables, so that a plan customized just for you can be created. We spend a significant amount of time educating our clients on the filler process, maintenance of results and aftercare so that you feel comfortable and confident during your filler treatment with us.

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          Practice Hours

          Monday: 9:00am - 5:00pm

          Tuesday: 9:00am - 6:30pm

          Wednesday: 9:00am - 6:00pm

          Thursday: 9:00am - 6:30pm

          Friday: 9:00am - 5:00pm

          Saturday: 9:00am - 1:30pm

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