RH4 Filler: Natural-Look Enhancements

Medically Reviewed
Medically Reviewed by Dr. Aurora Kalmanson on
Written by Fillers Editorial Team, plastic surgery specialists.

RH4 Filler represents a cutting-edge solution in the realm of aesthetic enhancements, specifically designed to address dynamic facial wrinkles and folds. As part of the RHA Collection, RH4 Filler is a resilient hyaluronic acid-based product that adapts to facial movements, offering a natural look both at rest and in motion.

Developed by TEOXANE Laboratories, this filler not only provides immediate volume and softens skin but also maintains its effects for up to 15 months. Ideal for treating areas like cheeks, chin, and temples, RH4 Filler is a testament to innovation in non-surgical facial rejuvenation.

What is RH4 Filler?

RH4 Filler is a sophisticated dermal filler that stands out for its ability to integrate seamlessly with the skin’s dynamic nature. It is part of a broader range of products designed to work with the skin’s movement, ensuring a natural appearance across various facial expressions.

Definition and Description

Resilient Hyaluronic Acid (RHA) Filler: RH4 Filler is a resilient form of hyaluronic acid, a substance naturally found in the skin that retains moisture and creates volume. Unlike traditional fillers, RH4’s unique formulation allows it to stretch and adapt to facial movements, providing a more natural look that doesn’t compromise facial expressions. This elasticity and viscosity make it particularly effective for dynamic areas of the face, such as the cheeks and around the mouth, where expressions are most prominent. The inclusion of Lidocaine in the formula ensures a painless treatment experience with minimal swelling, making the process of reversing signs of aging not only effective but also comfortable.

Unique Properties and Benefits

Provides Natural-Looking Results: RH4 Filler’s ability to blend seamlessly with the skin’s own hyaluronic acid results in outcomes that are remarkably natural in appearance. The goal of any cosmetic enhancement is to improve one’s look without drawing attention to the treatment itself, and RH4 Filler excels in this regard. Its integration with the skin’s structure means that the treated areas do not appear overly done or artificial. Instead, patients can expect subtle yet noticeable improvements that enhance their features while preserving the individuality of their facial characteristics.

Long-Lasting Effects (Up to 15 Months): One of the most compelling benefits of RH4 Filler is its longevity. The effects of the treatment can last up to 15 months, which is significantly longer than many other hyaluronic acid-based fillers. This extended duration means fewer appointments and touch-ups, making it a convenient option for those with busy lifestyles. The long-lasting nature of RH4 Filler is a testament to the strength and resilience of its formulation, providing patients with enduring results that maintain their appearance over time.

Improves Skin Elasticity and Hydration: Beyond its immediate volumizing effects, RH4 Filler also contributes to the overall health of the skin by improving its elasticity and hydration. The hyaluronic acid within the filler not only fills wrinkles but also binds water molecules to the skin, providing lasting hydration. This enhanced moisture content helps to maintain skin elasticity, giving the skin a firmer and more resilient feel. With improved hydration and elasticity, the skin is better equipped to resist the formation of new wrinkles, contributing to a more youthful and radiant complexion over time.

Indications and Treatment Areas for RH4 Filler

RH4 Filler is specifically indicated for dynamic areas of the face, offering a versatile solution for various aesthetic concerns.

Moderate to Severe Dynamic Wrinkles and Folds

Nasolabial Folds: Nasolabial folds, the prominent lines that run from the sides of the nose to the corners of the mouth, are a common concern as they can significantly age one’s appearance. RH4 Filler is adept at softening these folds, providing a lifting effect that rejuvenates the area. By adding volume beneath the skin’s surface, RH4 Filler can reduce the depth and appearance of these folds, resulting in a smoother transition from the cheek to the lip area. The treatment not only improves the look of nasolabial folds but also contributes to an overall more youthful facial contour.

Marionette Lines: Marionette lines, which extend downwards from the corners of the mouth, can give the face a downturned, unhappy expression. RH4 Filler addresses these lines by restoring volume and structure to the lower face. The filler’s strong properties ensure that the improvements remain consistent during speech and other movements, preventing the exaggerated shadows that can accentuate these lines. With RH4 Filler, patients can achieve a more positive and refreshed appearance, as the treatment effectively diminishes the severity of marionette lines.

Chin Wrinkles: Chin wrinkles, including dimpling and creasing, can be effectively treated with RH4 Filler. The filler’s robust formulation is particularly suited for the dynamic environment of the chin, where expressions and movements are frequent. By injecting RH4 Filler into targeted areas, practitioners can smooth out the texture of the chin, reducing the appearance of wrinkles and providing a firmer, more defined chin profile. The treatment not only improves the look of the chin but also enhances the overall harmony of the lower face.

Volume Restoration in Extended Facial Areas

Cheeks: The cheeks are a pivotal feature in the architecture of the face, and loss of volume in this area can lead to a sunken or aged appearance. RH4 Filler is adept at restoring this lost volume, providing a lift that can rejuvenate the entire face. By strategically placing the filler, practitioners can enhance the cheekbones, creating a more youthful and defined facial structure. The treatment not only improves the appearance of the cheeks but also impacts the overall facial balance, as fuller cheeks can help to soften the appearance of nasolabial folds and marionette lines.

Outer Facial Contours: The outer facial contours, including the jawline and the areas adjacent to the cheeks, play a crucial role in defining the face’s shape. RH4 Filler can be used to enhance these contours, providing a more sculpted and youthful appearance. By adding volume to these areas, the filler can help to counteract the effects of gravity and loss of skin elasticity that lead to jowling and sagging. The result is a smoother transition from the face to the neck and a more defined jawline that contributes to a more refined facial profile.

Frequently Asked Questions

How long does RH4 filler last compared to other hyaluronic acid fillers?

RH4 filler typically lasts up to 15 months, which is longer than many other hyaluronic acid fillers that often last from 6 to 12 months.

Is RH4 filler safe for all skin types?

Yes, RH4 filler is generally safe for all skin types, but a consultation with a qualified injector is recommended to address individual concerns.

Can RH4 filler be used in combination with other aesthetic treatments?

RH4 filler can be used in combination with other treatments, but it's important to discuss your treatment plan with a healthcare professional.

How much does RH4 filler treatment cost?

The cost of RH4 filler treatment varies depending on the amount of filler used and the geographic location of the clinic.

How many RH4 filler treatments are needed for optimal results?

Typically, one treatment is sufficient, but some patients may require a follow-up for optimal results.

What is the difference between RH2, RH3, and RH4 fillers?

RH2 is for fine lines, RH3 for moderate wrinkles, and RH4 for severe wrinkles and volume loss.

Is RH4 filler suitable for people with sensitive skin?

RH4 filler is generally suitable, but individuals with sensitive skin should discuss potential risks with their injector.

How often should I receive RH4 filler treatments to maintain results?

Maintenance treatments are typically recommended every 12 to 15 months.


RH4 filler stands out as a resilient, long-lasting solution for dynamic facial wrinkles and folds. With its advanced formulation, it offers natural-looking results that adapt to facial movements, making it a preferred choice for those seeking a youthful and refreshed appearance. Proper aftercare and the expertise of a qualified injector are vital to the success of the treatment. As with any cosmetic procedure, understanding the potential side effects, benefits, and maintenance requirements will ensure patient satisfaction and the best possible outcomes.

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Beer, K., Biesman, B., Cox, S. E., Smith, S., Picault, L., & Trevidic, P. (2023). Efficacy and Safety of Resilient Hyaluronic Acid Fillers Injected with a Cannula: A Randomized, Evaluator-Blinded, Split-Face Controlled Study.

Dr. Aurora Kalmanson

Always Consult a Medical Specialist

The information provided in this blog is for informational and educational purposes only and should not be interpreted as personalized medical advice. It's crucial to understand that while we are medical professionals, the insights and advice we provide are based on general research and studies. They are not tailored to individual health needs or conditions. Thus, it is essential to consult directly with a healthcare provider who can offer personalized medical advice relevant to your specific situation.