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Rich PL Topic | A Doctor Explains Injection Treatments Combining Polylactic Acid and Hyaluronic Acid
"I've started to notice wrinkles and fine lines. My cheeks are looking hollower, and my nasolabial folds are becoming more prominent, too…"
"I want to recapture a more youthful look. But surgery is a little frightening, and I can't take the downtime…"
Hello, I am a doctor at Smart Skin Clinic, a cosmetic dermatology clinic.
Do you have concerns like these?
Sagging skin and wrinkles that come with aging are concerns many people face. When skincare and makeup are no longer enough to cover them, injection treatments are drawing attention.
Among these, one innovative injectable formulation attracting attention is the Italian-born "Rich PL Topic." By combining polylactic acid and hyaluronic acid in a proprietary blend, this formulation is designed to deliver both immediate volume enhancement and long-term skin rejuvenation at the same time.
In this article, a cosmetic dermatology clinic well versed in injection treatments explains in detail the features, effects, and procedure of Rich PL Topic, and offers a clear explanation of who this treatment is well suited for.
If you want firmer, more elastic, youthful-looking skin while avoiding the risks of surgery, we invite you to use this article as a reference.
Group Chief Director, Smart Skin Clinic Group
Ishii Kota
Career
Graduated from Juntendo University School of Medicine
Worked at Tokyo Women's Medical University Hospital and affiliated facilities
Worked at a major aesthetic clinic in Tokyo
Affiliations / Qualifications
Board-certified specialist, Japan Surgical Society
Board-certified specialist, Japanese Society of Anti-Aging Medicine
What is Rich PL Topic?
Rich PL Topic is an innovative injectable formulation developed in Italy. By combining polylactic acid (PLLA) and hyaluronic acid in a proprietary blend, it is designed to deliver both immediate volume enhancement and long-term skin rejuvenation at the same time. Injected into the deep dermis, it may help restore natural firmness and elasticity, improve fine wrinkles, and promote collagen production.
Features and effects of Rich PL Topic
Improved skin elasticity and suppleness:
Polylactic acid stimulates fibroblasts and helps promote the production of collagen and elastin. This can improve the skin's elasticity and suppleness and help restore firmness.
Skin hydration effect:
Hyaluronic acid increases the moisture content of the dermal layer and enhances the skin's ability to retain moisture. It helps prevent the appearance of fine lines caused by dryness and keeps the skin smooth and dewy.
Improvement of fine wrinkles:
Through the synergy of polylactic acid and hyaluronic acid, fine wrinkles and lines are gradually improved. As skin firmness and elasticity improve, you can aim for youthful-looking skin with less noticeable wrinkles.
Promotion of collagen production:
Polylactic acid activates collagen production in the dermal layer. Collagen plays an important role in maintaining the skin's elasticity and strength, and by promoting its production, long-term skin rejuvenation can be expected.
Who Rich PL Topic is recommended for
- Those concerned about sagging skin and wrinkles due to aging
- Those bothered by hollow cheeks or the depth of their nasolabial folds
- Those who wish for a natural volume enhancement
- Those aiming for long-term improvement of skin quality
- Those who want to obtain both the immediate effect of an injectable formulation and skin rejuvenation at the same time
Treatment areas and method
Rich PL Topic is injected mainly into the deep dermis of the face. The specific treatment areas are as follows.
- Cheeks: Improves cheek hollowing and sagging for a natural volume enhancement.
- Nasolabial folds: Improves the depth of the nasolabial folds, aiming for smoother skin.
- Marionette lines: Improves the lines descending from the corners of the mouth, giving a more youthful impression.
- Temples: Improves hollowing at the temples and balances the overall face.
The procedure is performed by a physician with extensive experience in injection therapy. Using a fine needle, an appropriate amount of Rich PL Topic is injected into the deep dermis. The procedure takes about 30 minutes and is carried out with careful attention to pain.
Risks and side effects (downtime)
Risks, side effects, and downtime may mean roughly the same thing to you, so we will explain them together.
Redness, swelling (puffiness), and pain may occur at the injection site.
The reactions described above usually subside within 24 hours.
Another point I always make sure to mention is the possibility of “bruising”. Since there are sometimes misunderstandings about this, I’d like to explain it carefully.
First, please take a look at the following.
Due to the nature of the treatment, bruising may—though not always—occur at the needle puncture site. If bruising does occur, it gradually fades over the course of one to two weeks.
As noted here, bruising occurs at a certain frequency (about 3–10%).
Bruising happens when the needle strikes a "blood vessel (a vein)" beneath the skin, causing a small tear so that blood leaks out and clots.
In other words, to prevent it, "it's best not to hit a blood vessel." However, these blood vessels (veins) are very thin, and their course (where they run) differs from person to person. For this reason, it cannot be prevented 100% by the physician's skill alone.
At Smart Skin Clinic, we are "committed" to using ultra-fine needles and make every effort to reduce the risk of bruising as much as possible. We appreciate your understanding of this when you visit us.
Drawbacks
Individual variation in effect:
Depending on your skin condition and how your skin responds, the way the effect appears and how long it lasts may differ.
Repeated treatments required:
To maintain the effect, repeat treatments at regular intervals are necessary.
Recommended number of treatments and treatment schedule
To draw out the full effect of Rich PL Topic, the following treatment schedule is recommended.
- First session: The required amount of Rich PL Topic is injected.
- Second session: An additional injection is performed about one month after the first session.
- Third session: An additional injection is performed about one month after the second session.
- Maintenance: Re-injection every 6 to 12 months to maintain the effect.
Smart Skin Clinic's "commitment" to injectable treatments
In adopting Rich PL Topic, our clinic thoroughly verified the safety and efficacy of the formulation. In addition, our doctors, who are well versed in injection therapy, will propose the most suitable treatment plan for each patient's skin condition and wishes.
Pricing
| Once | 79,800 yen |
| 3 times | 230,400 yen (per session 76,800 yen) |
| Trial Price (3 sessions) | 220,400 yen (per session 73,500 yen) |
Need for Anesthesia | High
Prices shown are all-inclusive, covering anesthesia and other fees.
This is because anesthesia is recommended for this treatment, so the standard practice is to perform it after applying anesthetic cream or administering local anesthesia.
Monitor Requirements
①Intended Use｜We may publish your photos on our website, Instagram, and similar media with the eye area concealed, or show them to other patients as treatment examples [please picture typical case photos].
②Procedure｜You pay the regular price at your first visit, and we refund the difference (between the regular price and the monitor price) when the monitor photos are taken (3 to 7 days after the second treatment).
Who cannot receive this treatment
Those who are pregnant or breastfeeding
Those with an infection or skin disease
Those allergic to polylactic acid or hyaluronic acid
Those with an autoimmune disease
Others whom the physician judges to be unsuitable for the treatment
Related Pages
Physician Who Supervised This Page
Smart Skin Clinic, Chief Medical Director / Physician
Kota Ishii
We oversee treatment policies across the entire group, tailored to the skin condition of each individual patient. The content on this page has been reviewed and approved in line with our clinic's treatment policies.
Interview with Director Kota Ishii
Kota Ishii, our Chief Medical Director, shares our clinic's approach to patient care.
Clinic List
Jimbocho Clinic
〒101-0054
3-16-1 Kanda Nishiki-cho, Chiyoda-ku, Tokyo, EX Kanda Nishiki-cho Building 8F (general reception) / 7F
Hours: Mon–Fri 11:00–20:00 / Sat & Sun 10:00–19:00
Yokohama Clinic
〒221-0835
TS Plaza Building 2F, 2-23-2 Tsuruya-cho, Kanagawa-ku, Yokohama-shi, Kanagawa
Hours: 10:00–19:00
About the physician supervision of this site
This site is operated under the supervision of a Smart Skin Clinic supervising physician.
This page was produced in accordance with the Medical Advertising Guidelines Medical Advertising Guidelines revised and enforced in June 2018, under which we produce and provide this information.
- Scope of supervision: treatment descriptions, risks and side effects, price display
- Last supervision date: June 26, 2025