Poly L Lactic Acid (PLLA)

Synonyms: poly(L-lactide), PLLA

CAS No:33135-50-1

Appearance: Pale yellow particle

End Group: Acid, Ester and Hydroxyl group for options

Minimal order quantity: 30 gram

Poly-L-Lactic Acid is a distinct type of polylactide (PLA). PLLA is created through the polymerization of L-lactide. PLLA is a thermoplastic polyester material produced from renewable resources. It remains one of the most environmentally friendly plastics due to its ability to break down quickly and sustainable production processes.

PLLA remains an effective choice in the medical field as it naturally degrades into lactic acid. Poly L-lactide microparticles also stimulate inflammation, helping to promote collagen synthesis. Due to these features, PLLA is frequently used as an agent for facial filling and other cosmetic medical procedures.

Many medical implants are made from PLLA, including anchors, rods, pins, plates, and screws. The biodegradable properties of this material allow it to safely degrade inside the body within six months to two years. Other medical applications include wound management, drug delivery, and orthopedic devices.


Poly L lactide is a biodegradable polyester that is commonly used in various industries. It is often used in medical applications, such as surgical sutures or drug delivery systems, due to its biocompatibility and ability to gradually degrade in the body.

Additionally, poly L lactide can also be used in packaging materials, agricultural films, and in 3D printing. Its versatility and ability to be easily processed make it a valuable material in various fields.

PLA (Polylactic Acid) and PLLA (Poly-L-lactic Acid) are both types of biodegradable polymers, but they differ in their properties and applications.

PLA is a versatile and widely used bioplastic derived from renewable resources such as corn or sugarcane. It has good mechanical properties, is easy to process, and is commonly used in packaging, disposable tableware, and 3D printing.

On the other hand, PLLA is a specific form of PLA that is highly crystalline and has a higher melting point. This makes PLLA more suitable for applications where increased strength and thermal stability are required, such as medical implants and sutures. PLLA has a slower degradation rate compared to regular PLA.


Poly L lactic acid (PLLA) is a biodegradable polymer that is commonly used in various medical applications. It works by stimulating the natural production of collagen in the body.

When PLLA is injected into the skin or deep tissues, it acts as a scaffold that supports and stimulates the growth of new collagen fibers. Over time, the PLLA is gradually broken down by the body, while collagen continues to be produced. This process helps to improve the volume, structure, and overall appearance of the treated area.

Additionally, PLLA has been found to promote neocollagenesis, which is the formation of new collagen, resulting in long-lasting and natural-looking results.

The solvent for Poly l-lactide is typically chloroform or dichloromethane.

Yes, PLLA can copolymerize with a wide range of materials, such as Mpeg-PLLA, PLLA-PCL copolymer.

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