Synerfill: Advanced Collagen-Stimulating Skin Booster

Synerfill is an innovative injectable skin booster that combines Poly-L-lactic acid (PLLA) with both high- and low-molecular-weight hyaluronic acid (H-HA and L-HA) to simultaneously hydrate the skin and stimulate long-term collagen production. Available in two formulations, Synerfill Face and Synerfill Body, it addresses a wide range of aesthetic concerns, from fine lines and volume loss on the face to skin laxity on the body.

Unlike traditional hyaluronic acid skin boosters that primarily provide hydration, Synerfill’s PLLA component activates fibroblasts to produce new collagen and elastin, resulting in progressive, long-lasting improvement in skin density and firmness. Results can last up to 24 months, making it one of the more durable options in the skin booster category.

How Does Synerfill Work?

Synerfill’s dual-action formula is designed to work on two levels:

  • Immediate hydration: The high- and low-molecular-weight hyaluronic acid components attract and retain moisture in the dermis, improving plumpness, softness, and radiance right away.
  • Long-term collagen stimulation: The PLLA microparticles gradually stimulate fibroblast activity, triggering the production of new collagen and elastin. As the PLLA is safely metabolized by the body, a natural scaffolding of collagen forms in its place, improving skin thickness, firmness, and texture over time.

Synerfill Face vs. Synerfill Body

Synerfill Face is formulated specifically for facial rejuvenation. Each vial contains 200 mg of PLLA along with 30 mg each of H-HA and L-HA. It is well suited for treating fine lines, volume loss, and skin texture irregularities across the face and neck.

Synerfill Body contains a higher concentration of active ingredients—400 mg PLLA and 60 mg each of H-HA and L-HA—to address skin laxity and volume loss in larger body areas including the hands, décolletage, and other regions requiring more significant rejuvenation.

Key Benefits of Synerfill

  • Stimulates new collagen and elastin production for lasting skin improvement
  • Provides immediate hydration and plumping effect
  • Softens fine lines, wrinkles, and deep folds
  • Improves skin elasticity, texture, and overall quality
  • Addresses both the face and body with targeted formulations
  • Results can last up to 24 months

Treatment Areas

Face: Nasolabial folds, cheeks, temples, jowls, eye area, chin, jawline, marionette lines, forehead, and neck.

Body: Backs of hands, décolletage, and other areas with skin laxity or volume loss.

Treatment Protocol

Most patients require two to three sessions spaced approximately one month apart. Results improve progressively over the following months as collagen continues to form, with full benefits typically visible around three to six months after the initial treatment. Maintenance sessions can be performed as needed to prolong results.

What to Expect

Synerfill is administered via a series of small intradermal injections across the treatment area. Mild redness, swelling, or bruising at the injection sites is normal and typically resolves within a few days. Patients are advised to avoid intense exercise, heat exposure (such as saunas or steam rooms), and direct sun exposure for 24 to 48 hours post-treatment.

Synerfill vs. Traditional Skin Boosters

Standard HA-based skin boosters deliver excellent hydration but do not meaningfully stimulate collagen. Synerfill goes a step further by combining HA hydration with PLLA-driven biostimulation, offering a more comprehensive anti-aging effect with significantly longer-lasting results. For patients looking to address both skin quality and underlying structural support, Synerfill offers a compelling dual-action approach.

author avatar
Dr. Jane Yoo Board-Certified Dermatologist and Mohs Surgeon
Jane Yoo, MD, MPP, is a Korean American board-certified dermatologist and fellowship-trained Mohs surgeon based in Midtown Manhattan. She is a Clinical Assistant Professor at the Icahn School of Medicine at Mount Sinai and the founder of Jane Yoo MD, PLLC and the Clinical Research Center of New York. Dr. Yoo holds an undergraduate degree from MIT and a Masters of Public Policy from Harvard's Kennedy School of Government. She completed her Mohs micrographic surgery fellowship at Yale. Her clinical and research focus spans aesthetic clinical trials including injectables and laser technology, skincare formulation and sunscreen science, K-Beauty and skin of color, ultrasound guided filler dissolution, artificial intelligence and beauty tech. Dr. Yoo's research is indexed under ORCID 0000-0002-7112-8963.