Two packages called a ‘skin booster’ can involve very different procedures. Before booking, find out whether the product is injected directly or applied to the skin after tiny channels are created—and whether radiofrequency (RF) treatment is included.
How the four methods differ
| Method | How the product is delivered | RF included? | What the quote should specify |
|---|---|---|---|
| Manual injection | A doctor injects the product point by point | Usually no | Exact product, total volume in mL/cc, treatment area and practitioner |
| Automated injector | A needle-based injector delivers the product using selected depth and dose settings | Usually no | Device model, needle cartridge, product, volume and area covered |
| DoubleTite | Microneedles deliver RF energy and the device injects fluid | Yes | Device, RF treatment plan, injectable product, dose and area |
| Dermaroller-assisted topical delivery | A roller creates microchannels; a product is applied to the surface | Usually no | Roller model and needle length, topical product and clinical setting |
1. Manual injection: the product, dose and placement matter
With manual injection, a doctor uses a syringe to choose the position, depth and amount at each point. This allows adjustments for individual areas, but the method alone does not guarantee an outcome. The product, the doctor's assessment and the injection plane all matter. Needle marks, small raised bumps, bruising and temporary swelling can occur.
2. Automated injection: a machine still uses needles
Conventional skin booster injectors still use needles. Devices such as DermaShine PRO allow the dose per delivery point to be set and use a handpiece for repeated injections. The machine helps control delivery, but it does not make injection depth, product loss or results identical for every person. RF is not automatically part of this treatment. Confirm the exact product and intended injected volume, rather than only the amount loaded into the device.
3. DoubleTite: RF microneedling together with fluid injection
DoubleTite, known as 더블타이트 in Korea, is a device from AGNES MEDICAL. According to the manufacturer, it uses microneedles of different lengths to deliver RF energy at different skin levels and also allows fluid injection. It therefore involves needles, RF and an injection step. It is not a needle-free treatment, and its function differs from that of a conventional injector such as DermaShine PRO.
An injection function does not mean every REJURAN, Juvelook or other injectable formulation can be used with the device. Before treatment, confirm the exact product and dose, its instructions for use and the treating doctor's assessment.
4. Dermarolling: microchannels followed by a topical product
A dermaroller has tiny needles that create temporary channels as it passes over the skin. A topical product may then be applied. This is still a needle-based procedure, but the amount spread on the surface cannot be counted as the amount injected. Needle length, hygiene and operator technique vary, and a clinical treatment is not the same as using a roller at home. If the skin barrier is damaged or there is an active infection or uncontrolled inflammation, seek a medical assessment first.
How to compare prices fairly
‘Manual injection, 2 cc’, ‘machine injection, 3 cc’, ‘one DoubleTite session’ and ‘one dermaroller session with serum’ are different specifications. For the first two, compare the exact injectable product and volume. For DoubleTite, check whether both RF and injection are included. For dermarolling, distinguish the amount of topical product from an injected dose. Public offers often omit these details, so unverified promotional prices are not presented here as a standard rate.
Ask the clinic: ‘Please specify the device model, full product name, formulation and amount used, treatment area, delivery method, whether anaesthetic and aftercare are included, and the total price including tax.’
Which method should you discuss with a doctor?
If your priority is a particular injectable at a defined dose and location, discuss manual or automated injection. If you also want to explore RF microneedling, ask whether DoubleTite is appropriate for your skin. Dermarolling with a topical product should not be treated as an equivalent dose of an injection. The decision depends on skin condition, product indications, previous reactions and recovery time, rather than how new a treatment sounds.
Frequently asked questions
Is DoubleTite an ordinary skin booster injector?
No. It combines RF microneedling and fluid injection. A conventional injector primarily controls needle-based product delivery.
Is dermarolling needle-free?
No. The roller contains microneedles. Applying a product to the surface is still different from injecting it with a syringe.
Will one vial of REJURAN have the same effect with all four methods?
You cannot assume that. The formulation, delivery route, actual amount used, treatment area and technique differ, so equivalent results should not be promised.
This guide explains treatment methods and does not replace an individual medical consultation, product instructions or medical care.
