RHA® Collection – Dynamic, Natural-Looking Dermal Fillers

At Boston Medical Aesthetics, we proudly offer the RHA® Collection of fillers, including RHA Redensity™, RHA 2, RHA 3, and RHA 4. Designed to adapt to your facial movements, RHA fillers deliver beautifully natural results — both at rest and in motion.

The History of RHA® Fillers

The RHA Collection (Resilient Hyaluronic Acid) was developed by Teoxane Laboratories in Switzerland and has been used safely in Europe since 2015. It was the first FDA-approved hyaluronic acid filler in the United States specifically designed for dynamic facial wrinkles and folds.

Unlike traditional hyaluronic acid fillers, RHA is formulated to more closely mimic the natural hyaluronic acid found in your skin. Through a gentle manufacturing process, the integrity of the hyaluronic acid chains is preserved, allowing the filler to stretch and move naturally with facial expressions. The result is a softer, more flexible filler that integrates seamlessly into the skin while maintaining structure and longevity.

RHA Redensity™

RHA Redensity is the softest filler in the collection and is ideal for delicate areas and superficial lines. It is commonly used for:

Fine perioral lines (“lip lines”)
Subtle lip enhancement

Redensity provides refined, smooth correction while maintaining softness — making it perfect for areas that require precision and finesse.

RHA 2

RHA 2 is designed for mild to moderate dynamic wrinkles. It works beautifully in:

Softening nasolabial folds
Treating marionette lines
Natural lip enhancement

It offers slightly more structure than Redensity while still maintaining flexibility and movement.

RHA 3

RHA 3 is ideal for moderate to more pronounced wrinkles and folds. It is commonly used for:

Deeper nasolabial folds
Corners of the mouth
Moderate facial contouring
Full lip enhancement (for patients seeking more noticeable volume rather than subtle lip augmentation)

RHA 3 provides balanced support and lift while continuing to move naturally with expression.

RHA 4

RHA 4 offers the most structure and projection within the collection. It is best suited for:

Deep folds and wrinkles
Cheek contouring and lift
Jawline and chin definition
Structural facial enhancement

This filler provides more robust support while still maintaining the dynamic flexibility that makes the RHA line unique.

Why Choose RHA®?

What sets RHA apart is its ability to adapt to your facial movement. We smile, talk, laugh, and emote thousands of times a day — and your filler should move with you. The RHA Collection was specifically designed for these dynamic areas, allowing for results that look refreshed, never stiff or overdone.

Your Personalized Consultation

Choosing the right filler depends on your anatomy, movement patterns, aesthetic goals, and the areas being treated. During your consultation at Boston Medical Aesthetics, our experienced providers will evaluate your facial structure and recommend the most appropriate RHA product — or combination of products — to achieve natural, balanced results.

If you’re ready to restore volume, soften lines, or enhance your features with a filler designed for movement, we invite you to schedule a consultation and discover which RHA filler is right for you.

Contact Us

Boston Medical Aesthetics offers complimentary, no-pressure consultations. Book your appointment online to experience the best medspa experience Boston has to offer today.

21 Merchants Row, Suite 3A, Boston, MA 02109

RHA® Collection in Boston, MA