We offer the latest in injectable wrinkle treatments with RHA® fillers. This cutting-edge collection of resilient hyaluronic acid dermal fillers fill in wrinkles while moving seamlessly with your natural facial expressions. The expert injectors at our Eugene medical spa use RHA fillers to both soften deep lines or enhance facial contours for beautifully natural results.
What are RHA fillers and how do they work?
RHA Fillers are the first and only FDA-approved hyaluronic acid fillers specifically designed for dynamic wrinkles and folds—those that appear with facial movement. Unlike traditional fillers, RHA fillers are formulated with Resilient Hyaluronic Acid (RHA) that mimics the natural hyaluronic acid found in your skin and allows them to maintain strength and flexibility even in high-movement areas.
Once injected, RHA fillers adapt to your unique facial movements without compromising their structural integrity (or your results!).
The RHA Collection
The RHA Collection includes:
- RHA 2: Treats surface lines and wrinkles including vertical lip lines, radial cheek lines (those that fan out from the mouth when you smile), glabellar lines (a.k.a. the “elevens”), and crow’s feet.
- RHA 3: Perfect for treating deep wrinkles and creases, such as nasolabial folds (the deep lines that run vertically between the nose and mouth) and the corners of the mouth. We also use the formula to add youthful volume to the lips and midface and smooth the cheeks.
- RHA 4: Tackles the deepest lines and folds, namely those along the lower face and jawline. This formula is excellent at contouring the cheeks to create the appearance of high cheekbones and creating jawline definition.
- RHA Redensity™: Perfect for smoothing fine lines (lipstick lines) around the mouth.
Benefits of RHA fillers
Like Juvéderm® and Restylane® fillers, treatments with RHA fillers are quick and require little to no downtime. Other benefits include:
- Dynamic wrinkle treatment: RHA fillers smooth lines and folds caused by repeated facial expressions.
- Natural-looking results: The unique formulation allows RHA fillers to move naturally with your facial expressions for results that look and feel authentic.
- Long-lasting effects: RHA filler results can last up to 15 months—much longer than other HA fillers on the market.
“Each visit is wonderful. The staff is friendly, and efficient. Karen is knowledgeable and always able to answer my questions in a way that I completely understand what the procedure will be and what effects I might expect.”
RHA fillers vs. other dermal fillers
RHA fillers are specifically designed to fill in and smooth expression-based wrinkles and folds while also adding volume when desired. Traditional HA dermal fillers are excellent choices for static wrinkles (lines and folds that are visible when your face is at rest). RHA fillers also last longer than most HA fillers.
- Key Benefits
- Glossary
- Smooths dynamic lines and forehead creases
- Flexible formulas that look and feel natural even when your face is in motion
- Lasts up to 15 months
Adverse Events: Rare, more serious reactions to products that may require medical attention.
Aesthetics: The art of enhancing appearance through treatments like RHA fillers.
Botox: A popular injectable that temporarily relaxes facial muscles to smooth wrinkles.
Bruising: A common but temporary side effect of RHA filler injections that usually fading within a few days.
Chemical Peel: A skin-resurfacing treatment that can complement RHA fillers.
Clinical Studies: Research conducted to confirm the safety and effectiveness of RHA Fillers for enhancing facial aesthetics.
Crow’s Feet: Fine lines around the eyes that can be softened with RHA fillers for a refreshed look.
Daxibotulinumtoxina-lanm (Daxxify): A long-lasting wrinkle relaxer that may be paired with RHA fillers for extended results.
Dermal Fillers: Injectable treatments used to restore lost volume, smooth wrinkles, and enhance facial contours.
Dermis: The layer of skin beneath the surface where RHA fillers are injected to restore volume and smooth lines.
Dysport: A popular wrinkle relaxer similar to Botox.
Forehead Lines: Horizontal lines across the forehead that can be softened with RHA fillers.
Frown Lines: Vertical lines between the eyebrows that can be smoothed with RHA fillers.
Hyaluronic Acid: A moisture-binding ingredient used in RHA Fillers to hydrate and plump the skin for natural-looking results.
Incobotulinumtoxina (Xeomin): A wrinkle relaxer often used in combination with RHA fillers.
Inflammation: Temporary redness or swelling after RHA filler treatments.
Injection Site: The specific area of the face where RHA fillers are injected to achieve desired improvements.
Injectable Fillers: Treatments like RHA fillers used to plump, smooth, and contour various areas of the face.
Jeuveau: A modern wrinkle relaxer often paired with RHA fillers to smooth and enhance facial features.
Juvéderm: A well-known line of hyaluronic acid fillers.
Juvéderm Voluma: A different type of hyaluronic acid filler designed for deep volume restoration.
Laser Treatments: Cosmetic procedures that may be combined with RHA fillers to enhance overall skin texture and appearance.
Letybo: A newer wrinkle relaxer similar to Botox.
Lip Fullness: The plumpness and shape of the lips, which can be enhanced with RHA fillers for a fuller, natural look.
Local Anesthetics: Numbing agents used during RHA filler injections to make the treatment more comfortable.
Myobloc (rimabotulinumtoxinb): A botulinum toxin product used to reduce wrinkles outside of the US.
Nasolabial Folds: The lines running from the sides of your nose to the corners of your mouth.
Perioral Rhytids: Fine lines around the mouth.
Prabotulinumtoxina-xvfs (Jeuveau): An injectable neurotoxin for smoothing wrinkles.
RHA Redensity™: A specialized filler in the RHA® Collection.
RHA® Collection: A premium line of resilient hyaluronic acid fillers designed to adapt to your facial movements for natural-looking enhancements.
Revance Therapeutics: The company that offers RHA® Fillers and other innovative aesthetic products to help you achieve your ideal look.
Side Effects: Possible reactions to RHA® fillers, such as temporary redness, swelling, or bruising.
Treatment Site: The area of the face being treated.
Why choose us for your Eugene RHA fillers
Choosing a trusted provider for your dermal fillers is the most important step toward having a safe treatment experience with the best results possible. It’s easy to find places that offer dermal filler injections in Eugene, but it may not be easy to find an experienced provider. Unlike other med spas, Ziba Medical Spa at Movassaghi Plastic Surgery is directly overseen by board-certified plastic surgeon, Dr. Kiya Movassaghi. Our qualified team of aesthetic providers have extensive training, precise skill, and a deep understanding of facial anatomy. You can feel rest assured that you will be receiving safe and effective treatment with beautiful results.
Our Injectors are AlliedPro Members

Our team of expert aesthetic providers—Casey, Rachel, Karen, and Janna—are proud members of AlliedPro, a new program by The Aesthetic Society that offers exclusive training and community to top aesthetic medical professionals. Members of AlliedPro are dedicated to learning the latest in safety and technique for non-surgical procedures, thus training their skills, nurturing their careers, and enhancing patient outcomes.
“I’ve seen PA Janna a few times now and always walk away happy and educated about what services I received. Warm and welcoming environment with people who really seem to care about my well-being and have my best interest at heart. No one else I’d rather entrust my esthetic needs with!”
FAQs about RHA fillers
Our medical aesthetic professionals would be happy to recommend the right filler for your skin and goals. Call Ziba Medical Spa at (541) 686-8700 to schedule your appointment.