Draft:SYNERJET

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SYNERJET™

SynerJet is a needle-free injector developed by Hironic.inc, a South Korean beauty medical device company. The device utilizes a solenoid method for micro-injecting drugs into the skin. SynerJet enhances the efficiency of drug delivery and absorption by combining high-pressure injection with advanced technologies such as Electroporation and Plasma.

Overview

SynerJet is a needle-free injector device based on 'Jet Injection' technology.

'Jet Injection' technology injects drugs in a fine, high-pressure spray that penetrates the outermost layer (stratum corneum) and delivers to specific tissues such as the epidermis, dermis, fat layer, or muscles. Think of it as a water cannon thinner than a hair. Originally, needle-free injections were used to meet medical needs such as mass vaccinations and insulin injections, but now, with the advancement of needle-free injection technology, it is also introduced in the cosmetic field for its effectiveness and convenience.

Needle-Free Injectors

Since the 1990s, several types of needle-free injectors have been invented. While each product differs in specific principles, typically, a very fine stream of solution is injected under high pressure. In 2011, a research team from Seoul National University was the first in the world to successfully develop and verify the effectiveness of a 'needle-free injector'.

Development Background

Skin booster treatments, especially those injecting collagen regeneration components directly into the dermal layer to enhance skin elasticity and moisture retention, have rapidly grown in the market in recent years. Especially some products have become very popular, increasing consumer demand and expectations for technology.

Traditional injection treatments involved doctors manually injecting drugs into the dermis with needles. However, this method was challenging to maintain accuracy and consistency, had long treatment times, and caused significant pain to patients. A more efficient and patient-friendly alternative was needed.

SynerJet, like other cosmetic-purpose needle-free injectors, was developed to increase time efficiency over traditional needle methods and to reduce stimulation and pain applied to the skin, designed to precisely control injection volume and depth. As of 2025, it incorporates the latest technology among similar devices introduced in the market and features two additional energy technologies.

Technology

SynerJet represents an evolution from traditional ‘Jet’ formation methods, moving beyond conventional spring piston and pneumatic systems to adopt a solenoid method. Unlike past devices that used piston force in a sealed chamber filled with liquid, SynerJet utilizes a solenoid, i.e., an electromagnetic coil. This solenoid can consistently create precise pressure for more accurate injections and maintains consistent injection quality due to the same force being applied every time.

Moreover, using electromagnetic force allows for immediate response, enabling fast injection speeds and efficiency. This solenoid method, fundamentally having less mechanical wear, has been commonly adopted in devices commercialized after the 2010s due to its ease of maintenance.

Features

Skin booster treatments typically involve administering 1-3cc of solution over hundreds to thousands of shots. Instead of manually performing each injection, using a high-speed injection handpiece allows for rapid and dense treatment, a major advantage. The most notable feature is the simultaneous micro-injection with surface electrical stimulation (Electroporation), which enhances the absorption of the solution as it penetrates the skin during injection. Additionally, the device is equipped with a handpiece capable of Plasma therapy, allowing dual treatments in one device, a cost-effective advantage.

Advantages

The biggest difference from simple drug injections is that as the drug penetrates the skin with Jet pressure, it induces (as healing response,) skin regeneration, thus enhancing scars, pores, and elasticity. It also promotes natural collagen production within the skin, gradually improving skin elasticity over time. Suitable for patients who:

• Have a fear of needles
• Are allergic to metals or have sensitive skin
• Want to minimize downtime after injections
• Need overall improvement in skin texture
• Are concerned about pores, scars, or sunken marks Physicians might prefer SynerJet when precise dosing and depth of delivery are required.

Suitable for physicians

• When precise delivery of the exact amount of medication at the correct depth is required.
• For new practitioners

Procedure

The treatment time varies from 5 to 15 minutes depending on the therapeutic objective. Before the procedure, a topical anesthetic cream is applied to minimize pain, and about 1-2 days of recovery time is generally required after the treatment.