The RHA® Collection is the only line of FDA-approved HA fillers for dynamic lines, wrinkles, and folds.

The RHA® Collection offers four HA-filler formulations. RHA Redensity™ is a weightless filler that smooths delicate lipstick lines. RHA® 2 and RHA® 3 offer elegant and refined smoothing for those seeking a soft, natural look in wrinkles and folds. Lastly, RHA® 4 provides natural volume for deeper dynamic wrinkles and folds.

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Dermal filler injection results are immediate. The results from the RHA® Collection of fillers can typically last up to 15 months in wrinkles and folds and 1 year in lipstick lines.

The RHA® Collection is widely studied. The clinical effectiveness and safety of RHA® 2, RHA® 3, and RHA® 4 were shown in two 15-month studies for wrinkles and folds. The clinical effectiveness and safety of RHA Redensity™ were shown in a 12-month study for lipstick lines—in which 2/3 of participants still had lipstick-line improvement at 12 months.

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Areas treated by HA fillers can go back to their original shape after being altered, stretched, bent, or compressed. Fillers need to have a high level of resilience because they are used in dynamic areas of the face, such as around the mouth. With all of the micromovements we make throughout the day like smiling, laughing, and talking, it’s important to have a dynamic filler that can adapt and be resilient to the movements in the face. The RHA® Collection is specifically designed for facial dynamics and a natural look at rest and in motion.