What Is Mirajet? A Comprehensive Guide to the Effects and Downtime of the Latest Needle-Free Skin Treatment

Mirajet is a needle-free microjet product injector that uses an Er:YAG laser. It is a transdermal drug delivery system based on a new concept. Conventional treatments such as Derma Pen and Potenza inject products by inserting needles into the skin, whereas Mirajet converts laser energy into pressure and rapidly sprays the product in the form of microjets.

The treatment is performed at a high speed of 40 shots per second, or 2,400 shots per minute, allowing the product to be delivered evenly to the desired layer within the dermis. A key feature is that there is no damage caused by needles or heat, resulting in less pain and downtime.

Mirajet uses laser-pressure-based technology known as a “microjet.” The pressure created by laser energy rapidly sprays the product, allowing it to penetrate the stratum corneum and epidermis and reach the dermis. The physical stimulation from the microjets promotes skin regeneration and activates collagen production, so an improvement in skin quality can be expected through a synergistic effect with the product.

Treatment is also possible in areas that are usually difficult to treat with conventional infusion treatments, such as around the eyes, including the eyelids, and the backs of the hands.

Mirajet has five modes that can be selected according to the treatment objective.

Each mode is explained in detail below.

This mode rapidly sprays the product using pressure created by laser energy, allowing it to pass through the skin, including the stratum corneum and epidermis, and reach the dermis. The synergistic effect of the shock waves produced by the Er:YAG laser and the infused product can stimulate fibroblasts and promote the production of collagen and elastin. It involves little pain or downtime, and an improvement in skin quality can be expected through these synergistic effects.

This mode uses higher settings than Toning Mode. It is effective for uneven skin and targets scars, stretch marks, self-harm scars, surgical scars, and acne scars. By using a higher power to deliver the product deeper than Toning Mode, an improvement in scars may be expected.

This mode is used for scar treatment and is performed only by physicians. Because it may involve bleeding and pain, topical anesthesia is required. It is suitable when acne scars or other scars require intensive treatment, but swelling, erythema, and scabs may continue for several weeks.

This mode produces a Peeling effect and promotes collagen regeneration by gently removing the stratum corneum. It promotes collagen production through heat and enhances the penetration of the product. Performing it before Toning Mode or Scar Mode allows the product to be delivered more efficiently. It is effective for improving skin firmness and radiance, enlarged pores, and fine lines.

This mode has a greater thermal effect on the skin’s surface and a stronger laser-Peeling effect than Fractional Mode. It is effective for uneven skin, including acne scars, atrophic scars, and other scars. Downtime is slightly longer than with Fractional Mode, and peeling, stinging, and dryness may continue for several days.

Mirajet can address various skin concerns through the synergistic effects of the physical stimulation from microjets and the product used. Specifically, the following effects can be expected.

Let’s take a closer look at each one.

When the dermis is stimulated by the treatment, fibroblasts are activated and the production of collagen and elastin is promoted. As these components, which form the foundation of the skin, increase, the skin gains firmness and elasticity overall, so lifting and tightening effects can be expected.

Treatment is also possible in delicate areas that are usually difficult to treat with conventional infusion treatments, such as around the eyes, including the eyelids, and the backs of the hands. This treatment may be suitable for people concerned about age-related sagging or reduced skin firmness.

Scar Mode and Stacking Mode can be used to address uneven skin, such as atrophic acne scars, and old scars. The microdamage created within the skin triggers a wound-healing response and promotes collagen remodeling. Combining the treatment with products that promote collagen production, such as Juvelook, may result in more effective improvement.

Another major advantage as a treatment option for deep acne scars that are difficult to improve is that Mirajet can be performed on the same day as other acne scar treatments, such as Trifill PRO, Potenza, and Subcision.

Promoting the production of collagen and elastin may help improve fine lines caused by dryness. Skin that retains moisture more easily may also show reduced dullness and improved radiance. Mirajet can address a wide range of skin concerns, including enlarged pores, facial redness, melasma, thinning hair, and hair loss. By changing the product and handpiece used, an optimal treatment plan can be developed for each person’s skin condition.

Mirajet alone can help rebuild and activate the skin, but the product used in combination can bring out even greater effects. This section explains the differences between the products in detail.

Juvelook is a next-generation skin booster combining poly-D,L-lactic acid (PDLLA) and non-cross-linked hyaluronic acid. It mildly stimulates fibroblasts within the skin and promotes the production of collagen, elastin, and hyaluronic acid.

It is effective for enlarged pores, fine lines, and acne scars, and combination treatments with Mirajet are performed at many clinics. Rejuran? No. Lenisna (Juvelook Volume) is a product suitable for improving deep wrinkles and insufficient volume.

Exosomes are extremely small substances approximately 30–100 nm in diameter that are secreted by stem cells. Because they contain growth factors and microRNA, they are used as a product that promotes tissue repair and regeneration. They have anti-inflammatory and antioxidant properties, and by being delivered deep into the skin and activating cells, they may provide anti-aging effects.

They are suitable for people who want to fundamentally improve their skin quality or regain a more youthful appearance.

Micro-Botox, which delivers Botox into the superficial layers of the skin, may produce a tightening effect on pores and sebaceous glands. It may also help suppress sebum production and reduce sweating, making it effective for people with oily, acne-prone skin or those concerned about makeup breakdown.

Tranexamic acid is used to address melasma and hyperpigmentation and is suitable for people seeking a skin-brightening effect. Some clinics also offer products such as Pluryal and Jalupro, which are used for moisturization and promoting collagen production.

Downtime and side effects are important considerations when choosing a cosmetic treatment. Mirajet is known as a treatment with relatively short downtime. This section explains the approximate downtime and possible side effects.

With Mirajet alone in Toning Mode, there is almost no downtime. In most cases, slight stinging or redness may occur after treatment and settle within one to two days. Makeup can be applied from the day after treatment, and because the impact on daily life is limited, even people with busy schedules can undergo treatment with ease.

With Stacking Mode, however, small bleeding marks may appear after treatment. From the following day, they can generally be concealed with makeup and fade within approximately three to seven days. When Collimated Mode and Stacking Mode are combined to treat acne scars or other scars, approximately one to two weeks of downtime is required.

Possible side effects include the following.

With Toning Mode, slight stinging or redness may occur and settle within one to two days. With Stacking Mode, however, swelling, erythema, and scabs may continue for several weeks. If any of these symptoms become severe or do not improve after the expected period, it is important to consult the clinic where the treatment was performed.

Risks also vary depending on the product used. Botox may cause dryness, while tranexamic acid may cause an allergic reaction. Be sure to listen to the physician’s explanation beforehand.

After treatment, it is important to moisturize thoroughly and protect the skin from ultraviolet rays. Avoid using Peeling products and scrub cleansers for approximately one week. We recommend avoiding makeup, long baths, and saunas on the day of treatment. When Er:YAG laser Peeling is performed in combination, peeling, stinging, and dryness may continue for several days, so thorough moisturization is necessary.

Understanding the differences between devices with similar functions can help you choose the treatment that is right for you. This section explains the differences between Mirajet and CureJet and Trifill PRO, which have similar functions.

Both Mirajet and CureJet are medical devices that infuse products into the skin without using needles, but their mechanisms and effects differ.

Mirajet converts laser energy into pressure and sprays a set amount of product in the form of microjets, delivering it more effectively to the deeper layers of the skin. CureJet, on the other hand, sprays the product at high speed using air pressure.

An advantage of Mirajet is that the product is propelled by laser-generated pressure, allowing it to penetrate the skin with greater penetration power and precision.

Trifill PRO is a device that inserts a dedicated needle into the skin’s surface and then injects carbon dioxide gas. Because the needle tip is fine, it can target specific points, and the product is injected without leakage, which is considered to provide a strong effect.

However, it involves more pain than Mirajet, which does not use needles. Mirajet may be suitable for people who are sensitive to pain or uncomfortable with needles. On the other hand, both treatments can be performed on the same day, so combining them may further enhance the treatment effects.

Here is an overview of the general process when receiving Mirajet treatment.

First, during the consultation, the physician will ask about your skin concerns and treatment preferences and conduct a detailed examination of your skin. You will receive an explanation of the optimal treatment plan, the products to be used, and the effects that can be expected. Once you understand the treatment details and risks, you will sign a consent form and schedule the treatment date. You will also receive instructions on any preparations required before treatment and aftercare, so listen carefully.

On the day of treatment, you will remove your makeup and, if necessary, topical anesthetic cream will be applied. Toning Mode involves little pain, so treatment can generally be performed without anesthesia. For acne scar or other scar treatment, anesthesia is used because the procedure may be combined with an Er:YAG laser or performed in Stacking Mode. The treatment takes approximately 20–30 minutes, and you may experience only a mild tingling sensation or warmth. There are no particular restrictions after treatment, and you can continue your normal daily activities.

Mirajet is particularly recommended for people like those described below. For people who are uncomfortable with needle-based procedures or sensitive to pain and have been hesitant to pursue cosmetic medicine, Mirajet may be a good option. It is also suitable for people who cannot afford extended downtime because of work or childcare, or who have difficulty taking several consecutive days off. One advantage is that there is no need to clear a large amount of time from your schedule—for example, you can receive Mirajet in the morning and return to work in the afternoon.

It can also be effective for people who want to improve several skin concerns at the same time, such as acne scars, other scars, enlarged pores, fine lines, and reduced skin firmness. It may also offer significant benefits to people who want comprehensive skin treatment in combination with other procedures.

Mirajet is an innovative skin treatment that delivers products to the dermis using laser pressure without needles. By selecting from several modes, including Toning Mode, Scar Mode, Stacking Mode, Fractional Mode, and Collimated Mode, it can address various skin concerns.

It involves little pain and downtime, and a wide range of effects can be expected, including improvement of acne scars and other scars, enhanced skin firmness, and tightened pores. Compared with CureJet and Trifill PRO, Mirajet is characterized by its high penetration power produced by laser pressure. Why not start by receiving a consultation at a clinic?