Bi-FLEX® TECHNOLOGY

Welcome to the next generation of injection.

Take control. Feel the precision

The Bi-FLEX® syringe is more than a tool – it's an extension of a physician’s expertise. Engineered for precision, control, and comfort, Bi-FLEX ® sets a new standard in aesthetic injections.

At Laboratoires VIVACY, innovation goes hand in hand with precision, safety, and comfort. Guided by our commitment to excellence in aesthetic medicine, we developed the Bi-FLEX® syringe, an advanced injection device specifically designed to optimise the physician’s experience while ensuring maximum comfort for the patient.

Because every detail matters – especially in the physicians’ hands

WHY Bi-FLEX?

Far more than a simple syringe, Bi-FLEX® embodies VIVACY’s philosophy: creating cutting-edge tools that empower practitioners to deliver the most natural, reliable, and refined results in medical aesthetics. Its unique ergonomic design has been carefully engineered to provide outstanding balance, stability, and control throughout the injection process.

Thanks to its patented flexible plunger movement and lightweight structure, the syringe allows smooth, effortless product delivery, reducing hand fatigue during repeated procedures. For practitioners, this means enhanced precision, a more intuitive grip, and greater confidence in achieving predictable, harmonious outcomes. For patients, it translates into safer treatments and a more comfortable experience with minimised discomfort.

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Enhanced precision1,2

A patented design with flexible head, allowing a personalised grip.

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Better grip with Bi-Material technology1,2

A 'soft-touch' TPE* surface for comfort and prehension. A transparent rigid plastic made of polycarbonate for precision and performance.

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Better comfort

Bi-FLEX® SYRINGES OFFER AN IMPROVED COMFORT TO PRACTITIONERS:
At the level of the palm of the hand: thanks to the fins and the deformation of the plunger rod head. At the level of the thumb: thanks to the addition of flexible material in the center of the syringe head.

BiFLEX Seringe by Vivacy
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Improved ergonomics1,2

Larger central fins to ease prehension during pre-aspiration.

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Improved Fixation for reduced risk of tearing1,2

The connection between the plunger and the rod has been strengthened to improve pre-aspiration before injection, reducing the risk of plunger rod disengagement, validated by traction tests and practitioners in real conditions.

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Sustainably designed

The new plunger requires -25% less plastic, representing a gain of 5,2 tons of plastic yearly.3 The new carton box containing the Bi-FLEX® syringes has also been redesigned to be recycled.

New design, new colors

Easier identification1,2

Every detail of the Bi-FLEX® syringe reflects VIVACY’s dedication to innovation: from the transparent barrel that ensures clear visibility of the product, to the optimised graduation markings that support accurate dosing, to the secure Luer-lock system that guarantees maximum safety during use. By combining functionality with comfort, Bi-FLEX® has become an indispensable tool for aesthetic experts worldwide who strive for excellence in their daily practice.

The syringe is compatible across the full STYLAGE® with and without Lidocaine range and with STYLAGE® XXL Mepivacaine ensuring that practitioners can leverage the benefits of VIVACY’s state-of-the-art dermal fillers with an equally advanced injection device.

Ultimately, Bi-FLEX® is not just about technology it is about enhancing the overall treatment journey. It allows practitioners to work with ease and precision while elevating the patient’s perception of care, trust, and satisfaction. With Bi-FLEX®, Laboratoires VIVACY reaffirms its pioneering role in medical aesthetics by delivering an innovative solution that bridges science, artistry, and patient well-being.

Stylage® XXL
Stylage® XL
Stylage® L
Stylage® S & M
Stylage® LIPS PLUS
Stylage® LIPS
Stylage® HYDROMAX

*For enhanced comfort during treatment, STYLAGE® S, M, L and XL are also available with lidocaine hydrochloride monohydrate

** For enhanced comfort during treatment, STYLAGE® XXL is also available with mepivacaine hydrochloride

texture

TRUSTED BY EXPERTS,
BACKED BY EXPERIENCE4,5

biFLEX logo

100%

Found the injection strength with Bi-FLEX® to be lower or equivalent than with Bi-SOFT®

94%

Found Bi-FLEX® to be more confortable than Bi-SOFT®

88%

Found that Bi-FLEX® colors allow better product differentiation

84%

Found pre-aspiration with Bi-FLEX® to be better or equivalent than with Bi-SOFT®

READY TO EXPERIENCE Bi-FLEX® ?

  1. 1. Bi-FLEX® concept evolution (2024).
  2. 2. Bi-FLEX® patent - FR 3140550 A1 (2022).
  3. 3. Internal technical specifications
  4. 4. Bi-FLEX® Usability Engineering File (2024).
  5. 5. Bi-FLEX® Summative Usability Report (2024).
  6. *Thermoplastic Elastomer.

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