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Re2O is a skin booster designed to “lay the foundation” by improving the skin’s inherent quality, rather than simply adding volume. The key is to clearly identify “what you want to improve” and choose a treatment that addresses that specific concern. Since other procedures may be more suitable for addressing sagging or improving facial contours, designing a treatment plan based on a comprehensive evaluation of your skin’s condition leads to natural, highly satisfying results.

 

Re2O is gaining attention in Japan as a new skin booster designed to enhance skin texture from the foundation up. In particular, we are seeing an increase in inquiries from individuals who have already undergone skin-rejuvenating treatments such as “Rejuran,” “JuvéLook,” and “Profilor” and are seeking the next level of improvement. In this article, from a clinical aesthetic surgery perspective, we will clearly and simply outline Re2O’s ingredients, mechanisms of action, expected effects, side effects, and indications, as well as key points for receiving the treatment safely in Japan.

 

In the field of cosmetic surgery, which is provided on a private, out-of-pocket basis, while skin boosters manufactured overseas are becoming an option, it is essential to understand the background of these products and how they are treated as unapproved medications. This article provides information to help you make an informed decision when considering Rituo in Japan.

 

 

What Is Re2O? Why It’s Gaining Attention in Japan

Rituo is an injectable treatment based on human-derived acellular dermal matrix (hADM) that aims to gently improve the overall texture of the skin—including firmness, elasticity, fine lines, pores, and skin texture. Unlike typical hyaluronic acid injections, which directly alter volume or contour, Rituo’s key feature is its focus on “foundational care” that optimizes the dermal environment and supports skin function.

 

This approach has been highly regarded for its focus on the extracellular matrix—which consists of collagen, elastin, hyaluronic acid, and various glycosaminoglycans—and is prone to degradation and depletion due to aging, UV exposure, inflammation, and dryness. Rather than simply promoting regeneration through stimulation, it moves closer to the concept of reinforcing structural support.

 

Role in Cosmetic Surgery

In the field of cosmetic surgery, Rituo is positioned as a treatment for “skin texture improvement” and enhancing the “youthfulness of the skin.” While it is not particularly effective for significantly lifting sagging skin or providing immediate improvement of deep wrinkles, it is a treatment that tends to meet the needs of those who wish to care for a thinned dermis, seek comprehensive improvement of dryness, fine lines, and enlarged pores, or desire changes that are not easily noticeable to others.

On the other hand, for lifting the jawline or addressing significant volume loss, it is recommended to combine this treatment with other cosmetic procedures, such as hyaluronic acid injections, thread lifts, HIFU, radiofrequency, and liposuction. Choosing the right combination is key to achieving the desired results.

 

Key Components and Design Philosophy

hADM is a concept in which cellular components are removed from human dermis, leaving behind the extracellular matrix—including collagen, elastin, hyaluronic acid, and glycosaminoglycans. Rituo aims to deliver this environment to the skin and establish a scaffold that supports the function of fibroblasts. At its core is a design philosophy that focuses not on increasing the amount of a single component, but on improving the “quality of the foundation” through a multifaceted approach.

Please be sure to verify the specific product specifications (composition, concentration, particle size, manufacturing process, quality control, and clinical data) by referring to the manufacturer’s materials and the explanations provided by the medical institution. It is not uncommon for products in the same category offered by different cosmetic surgery clinics to have different compositions.

 

Concept of the Mechanism of Action

The extracellular matrix is not merely a physical scaffold; it is a key component of the “microenvironment” that guides the function of fibroblasts. Rituo’s goal is to optimize this environment, support the balanced production of collagen, elastin, and hyaluronic acid, and gently promote skin remodeling. From the perspective of wound healing, it has also been suggested that an appropriate scaffold may influence the quality of regeneration.

However, individual responses vary, and factors such as age, skin thickness, inflammation, UV damage, lifestyle habits, concurrent treatments, and the number of sessions can affect the results. Rather than aiming for immediate, dramatic changes, it is more realistic to plan for a gradual, medium-term improvement in skin quality.

 

Expected Effects

The most commonly reported benefits include improved firmness and elasticity, a more even skin texture, reduced visibility of fine lines, a tendency toward tighter pores, relief from dryness, and overall improvements in skin brightness and smoothness. Satisfaction tends to be particularly high among those who have “thin, easily dry skin,” are “concerned about uneven texture or visible pores,” or find “conventional skin boosters insufficient.”

However, this treatment is not suitable for lifting sagging skin, providing immediate improvement for deep nasolabial folds or marionette lines, or correcting skeletal depressions. For these concerns, we recommend combining this treatment with other cosmetic surgical approaches.

 

Differences Between Rejuran, Jubelluc, and Profhilo

• Rejuran: Focuses on polynucleotides. Aims to promote post-inflammatory repair and improve skin texture.

• Jubelook: PDLLA + non-crosslinked hyaluronic acid. It stimulates collagen synthesis and is often used to treat enlarged pores, fine lines, and acne scars.

• Profilor: Formulated with high-concentration hyaluronic acid to promote hydration, firmness, and skin remodeling.

• Rituo: Focuses on the extracellular matrix derived from hADM. Its distinctive approach is to supplement the foundational components rather than relying on external stimuli.

 

There is no single "best" solution; the practical approach in cosmetic surgery is to select and combine treatments based on the patient’s skin concerns and desired outcomes.

 

Is it available in Japan? Key points to explain regarding its unapproved status

Although Lituo is being introduced at some clinics in Japan, it may currently be treated as an unapproved drug or similar product that has not yet received domestic approval. While the fact that it is unapproved does not necessarily imply danger, it is important to understand that it has not undergone the domestic review process and to make an informed decision only after receiving a thorough explanation.

 

Side Effects and Risks

Common reactions to injection treatments include redness, swelling, bruising, pain, a sensation of heat, edema, itching, discomfort, lumps, and unevenness. While most of these are temporary, the course of these reactions varies depending on the individual’s constitution, the treatment site, the volume injected, and the technique used. In rare cases, infection, allergic reactions, inflammatory reactions, induration, and hyperpigmentation may occur.

For a certain period after the procedure, it is best to avoid makeup, alcohol, strenuous exercise, long baths, saunas, and vigorous massage. Safety depends not only on the product itself, but also to a large extent on the injection site, the volume injected, the interval between injections, the choice of needle or cannula, sterile technique, postoperative care, and the cosmetic surgeon’s skill.

 

Guidelines for Adaptation and Maladaptation

• Skin concerns this product may help address: loss of firmness, dryness, uneven texture, fine lines, enlarged pores, and lackluster skin

• Concerns where other treatments should take priority: severe sagging (thread lifts, HIFU, radiofrequency, etc.), deep wrinkles (hyaluronic acid, surgical procedures), loss of volume (hyaluronic acid), expression lines (Botox), and hyperpigmentation or melasma (oral medications, optimization of light therapy settings)

The key to patient satisfaction lies in carefully identifying the root cause of the concern through cosmetic surgery and designing a treatment plan that is tailored to the individual’s specific needs.

 

Treatment Intervals, Frequency, and Combination Therapy Planning

While some people notice a change in skin texture after just one session, it is more realistic to evaluate improvements in skin quality based on the cumulative results of multiple sessions. The interval between treatments and the total number of sessions are customized for each individual based on skin thickness, the presence or absence of inflammation, tolerance for downtime, and whether the treatment is being combined with other procedures. Since an overly tight schedule or excessive injections can increase the risk of swelling, discomfort, or lumps, it’s important to proceed in a planned manner with your cosmetic surgeon.

 

Checklist Before Your Appointment

• Is "improving skin quality" an acceptable goal? (Not lifting or contouring)

• Do you agree with the classification as "unapproved" and the content of the explanation?

• Understanding Side Effects, Downtime, and Aftercare

• Comparative Analysis of Alternative Treatments and Combination Therapies

• Level of Satisfaction with the Treatment Plan (Number of Visits, Frequency, and Cost)

 

Estimated Costs for Cosmetic Surgery and Choosing a Clinic

Costs vary depending on the clinic’s supply chain, the volume injected, the treatment area, the practitioner’s skill level, and the clinic’s operational structure. Rather than focusing solely on price, prioritize factors such as medication management, the quality of counseling, hygiene and emergency response protocols, and the clinic’s ability to design treatment plans that integrate with other cosmetic surgery procedures. If you’re undergoing treatment in Japan, it’s safest to choose a cosmetic surgery clinic that strictly adheres to information disclosure and accountability.

 

Before & After and Tips for Evaluating Results

To ensure evaluations are not biased by subjective perceptions through a magnifying glass, we compare “before” and “after” images taken under standardized conditions (lighting, distance, and angle) and provide a comprehensive assessment of firmness, skin texture, pores, fine lines, and skin evenness. Using objective metrics—such as texture indices, moisture levels, and elasticity measurements—as supplementary tools makes it easier to track changes over time.

 

Frequently Asked Questions (FAQ)

Is there any pain or downtime?

While topical anesthesia and cooling usually make the procedure tolerable for most people, redness, swelling, and bruising may occur. Be sure to schedule your appointment well in advance of any upcoming events.

 

How many sessions does it take to see results?

Results vary from person to person; some people notice a change in skin texture right from the first session, while others find the results become more noticeable after 2 or 3 sessions. Please discuss your goals and the timing of follow-up evaluations with your cosmetic surgeon.

 

Can I have this treatment on the same day as other treatments?

This is possible depending on the treatment area and objective. Depending on how they are planned, hyaluronic acid injections, Botox, and energy-based devices can produce synergistic effects. It is important to plan the sequence of treatments to avoid interference and minimize risks.

 

Are there any allergy concerns?

As with any injection treatment, there is some risk involved. Please discuss your medical history and skin condition with the cosmetic surgery clinic, and we will consider conducting tests or a gradual introduction to the treatment as needed.

 

Summary

Re2O is a skin booster that focuses on the extracellular matrix derived from hADM (human acellular dermal matrix). It is a treatment designed to improve overall skin quality, including firmness, elasticity, skin texture, pores, and fine lines. A key feature of this treatment is that it aims to strengthen the skin’s foundation rather than simply adding volume.

 

On the other hand, since these treatments may be classified as unapproved pharmaceuticals in Japan, it is important to receive a thorough explanation of the product’s characteristics, safety, and risks. Additionally, for severe sagging and contour correction, other treatments—such as hyaluronic acid injections, thread lifts, or radiofrequency therapy—may be more suitable.

 

Accurately identifying the causes of your skin concerns and choosing the treatment that’s right for you will lead to highly satisfying results. Be sure to receive a thorough consultation at a reputable cosmetic surgery clinic and develop a treatment plan tailored to your goals and lifestyle.

 

▷ Rituo Re2O (Bunaju) Treatment Page

▷ Counseling Appointment Page