Poly-L-Lactic Acid — a gradual lifting effect and collagen renewal
One of the most powerful collagen-stimulating treatments available. It rebuilds and thickens the skin discreetly and gradually, restoring its structure, volume and firmness. The effect is natural and develops over time. A physician-administered treatment in central Warsaw.
Poly-L-Lactic Acid — a powerful collagen stimulator
Poly-L-lactic acid is one of the most powerful collagen-stimulating treatments available. Its action is discreet — because it is gradual — rebuilding and thickening the skin while restoring its structure, volume and firmness. The final effect is very natural and subtle: sagging skin is gradually lifted, the cheeks and nasolabial folds are replenished, and the skin regains radiance and elasticity.
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Proven for Over 30 Years
Poly-L-lactic acid has been used in medicine for over 30 years, including as a component of dissolvable surgical sutures and implants. It has a well-established safety profile, as it breaks down completely within the human body. More than 150,000 treatments using this substance have been performed since the late 1990s.
What makes this treatment unique is its discreet, gradual action — the effects appear over time, as the skin's own collagen renewal is naturally stimulated. Poly-L-lactic acid gradually, yet effectively and noticeably, restores skin firmness and elasticity, smoothing and toning it.
Collagen Stimulators at Velvet Skin Clinic
Poly-L-lactic acid is one of our treatments from the collagen-stimulator family — alongside Profhilo, Nucleofill and Sunekos, of which we have performed 515 in total.
Source: Versum and Booksy reports, as of 30 June 2026. Data matching is approximate (based on procedure name).
Why Poly-L-Lactic Acid Works Gradually
Stimulates Fibroblasts
Poly-L-lactic acid gradually stimulates fibroblasts to produce your own collagen — it is your own skin that rebuilds its structure.
The Effect Develops Over Time
Unlike a filler, it does not provide volume „right away” — the result builds up over weeks as collagen synthesis progresses.
Natural and Subtle
A gradual lift of sagging skin, replenishment of the cheeks and nasolabial folds, and a return of radiance and elasticity.
Poly-L-lactic acid breaks down completely in the body — leaving behind only newly produced, natural collagen of the patient's own.
When It's Worth Having a Poly-L-Lactic Acid Treatment
Poly-L-lactic acid is used to add volume to thin, sagging skin and to lift and strengthen the lower part of the face — particularly when the following are needed:
What Poly-L-Lactic Acid Helps With
We use this treatment for a single indication. Below we describe exactly what it does in this case.
Not sure which indication matches your situation? See All Indications or ask during a consultation.
Want to Rebuild Your Skin With Your Own Collagen Instead of a Filler? Book a Consultation.
Book a ConsultationWhat the Research Says About Poly-L-Lactic Acid
Poly-L-lactic acid (PLLA) is one of the best-documented collagen biostimulators. The studies below relate to PLLA technology — the mechanism shared by poly-L-lactic-acid-based treatments.
Collagen Synthesis
A comparative study of biostimulators found that poly-L-lactic acid increases the biosynthesis of type I and III collagen — key proteins responsible for skin structure.
Study on PLLA/PDO biostimulators, 2024. PubMed Central →Molecular Mechanism
In cultured human skin fibroblasts, PLLA increased collagen gene expression and synthesis via the TGF-β/Smad signalling pathway.
In vitro study, 2023. PubMed →Collagen Synthesis
A study assessing the effect of HA and PLLA fillers on collagen synthesis confirmed PLLA's ability to induce neocollagenesis in in vitro and in vivo models.
Comparative study, 2020. PubMed →The cited studies relate to poly-L-lactic acid (PLLA) technology, not a specific product brand. The number of treatments and the pace of results are determined individually by the physician; outcomes may vary depending on skin condition.
What a Poly-L-Lactic Acid Treatment Looks Like
This is a minimally invasive lifting treatment, performed by a physician and preceded by a detailed health interview. A local anaesthetic is applied immediately before the treatment. The product is injected deep under the skin in areas where volume loss has been identified. The treatment takes around 30–60 minutes, and the effects last up to 2 years. Patients can return to daily activities immediately afterwards; for a few days, mild discomfort, redness or swelling may occur at the injection site, which resolve on their own.
Health Interview
The physician rules out contraindications and plans the injection areas.
Anaesthesia
Local anaesthesia for treatment comfort.
Product Injection
Deep under the skin, in areas of volume loss.
A Series of 2–4 Treatments
Roughly every 6 weeks; the effect builds up and lasts up to 2 years.
Learn About the Full Therapy
Typically, 2–4 treatments are performed about 6 weeks apart, although the actual number depends on the patient's individual needs and expectations. Because the effect builds up gradually alongside the production of the patient's own collagen, the full result is assessed once the series is complete.
Aftercare Recommendations — Poly-L-Lactic Acid
The treatment doesn't require downtime, but it's worth taking care of the treated areas in the first few days. Discomfort, redness or swelling may persist at the injection site for a few days — these are temporary reactions.
Massage as Advised by Your Physician
With poly-L-lactic acid, your physician may recommend gently massaging the treated areas — follow their instructions.
Avoid the Sauna and Exercise
Skip the sauna, swimming pool and intense training for 1–2 days.
Protect Your Skin With SPF
Use an SPF cream and avoid intense sun exposure.
Reactions Are Temporary
Discomfort, redness or swelling usually pass within a few days.
Complete the Series
The full effect comes from a series of 2–4 treatments; schedule your follow-up visits with your physician.
This is educational and informational material. Detailed recommendations are provided by your physician during your visit; effects and outcomes vary individually.
See the Clinic and Procedure — Poly-L-Lactic Acid
Authentic photos from our Velvet Skin Clinic locations in Warsaw (Świętokrzyska — City Centre, Niepodległości — Mokotów).
Poly-L-Lactic Acid — Price in Warsaw
The price is for a single treatment; the full therapy usually involves 2–4 treatments about 6 weeks apart. Poly-L-lactic acid is administered by a physician. The therapy plan is set during your consultation.
Key Parameters
See Also — The Stimulator Family
Crystalys — Calcium Hydroxylapatite
When you want immediate filling combined with collagen stimulation.
ViewLinerase — Atelocollagen
Mesotherapy with ready-made type I collagen — regeneration, scars and stretch marks.
View5-Step Collagen Boost
A comprehensive skin-renewal therapy combining collagen stimulation.
ViewThey Trusted Us
„Tissue stimulators are the best treatment. I recommend Velvet Skin Clinic, the best of the best" (translated from Polish)
Karolina Gołda · 2025Google review„A great treatment, but it matters who performs it. In the hands of Dr Ewelina, the results are amazing" (translated from Polish)
Iwona · 2025Booksy review„Tissue stimulators improved the oval shape of my face." (translated from Polish)
Maria Borowczyk · 2025Google reviewContraindications for the Treatment
Each case is assessed individually by the physician during the health interview. The main contraindications are:
Frequently Asked Questions — Poly-L-Lactic Acid
What is poly-L-lactic acid (PLLA)?
Poly-L-lactic acid is one of the most powerful collagen stimulators, used in medicine for over 30 years, including in surgical sutures and implants. It breaks down completely in the body while stimulating the skin to produce its own collagen — leaving behind only new, natural tissue.
How does poly-L-lactic acid differ from a filler?
A filler provides volume immediately, supplementing the tissue with the product. Poly-L-lactic acid works differently: it doesn't fill instantly, but gradually stimulates the skin to produce its own collagen. The effect is more natural and develops over weeks, providing a gradual lifting and rebuilding effect.
When do the effects of poly-L-lactic acid become visible?
The effects appear gradually, as the skin produces new collagen — usually over several weeks after successive treatments. The full result is assessed once the series of 2–4 treatments is complete. The pace depends on the individual condition of the skin.
How many poly-L-lactic acid treatments are needed?
Typically, 2–4 treatments are performed about 6 weeks apart. The actual number depends on the patient's individual needs and expectations, as well as the initial condition of the skin. The physician sets the therapy plan during the consultation. The effect lasts up to 2 years.
Does a poly-L-lactic acid treatment hurt?
A local anaesthetic is applied immediately before the treatment, so discomfort is minimal. For a few days after the treatment, redness, swelling or a feeling of discomfort may occur at the injection site — these are temporary reactions that resolve on their own.
How much does a poly-L-lactic acid treatment cost?
The price of a single treatment is 1,400 zł. The full therapy usually involves 2–4 treatments, so the total cost depends on the plan agreed with your physician. You'll find the full price list on the pricing page, and you can book a consultation online or by phone.
Injectable Treatments Are Performed by Our Physicians
Aesthetic medicine treatments at Velvet Skin Clinic are performed exclusively by qualified physicians — with relevant medical education, postgraduate studies in aesthetic medicine, and clinical experience. Every treatment is preceded by a consultation, during which the physician tailors the therapy to your needs, indications and natural facial proportions.
Book Your Treatment — Poly-L-Lactic Acid
ul. Świętokrzyska 30
00-116 Warsaw · opposite the Palace of Culture and Science
Phone 500 53 30 30
See What the Research Says
The publications underpinning this treatment — with PMID identifiers and an assessment of evidence strength.