Rejuran Hand Injection vs Device Injection: A Complete Guide to Pain, Longevity and Value

Rejuran Healer has become almost synonymous with skin boosters, and you have probably considered it at least once. It stays popular because it helps strengthen the skin barrier and address dehydration deep in the skin. But the moment you book and sit down in the consultation room, you face another big decision.

"Would you like a hand injection given directly by the doctor, or a device injection using an injector?"

The cost is similar, or the device adds a fee, so which method actually works better for you? Below we look in detail at the level of pain, product loss rate and how long results really last.

1. The Basics of How Rejuran Is Injected

The key ingredient in Rejuran is PN (polynucleotide), extracted from salmon. The essence of the treatment is delivering this high-molecular substance evenly at the right depth in the dermis.

• Hand injection (manual injection): The traditional method, in which an experienced practitioner uses an insulin syringe to inject the product point by point across the face.

• Device injection (injector devices such as DermaShine): A device treatment that gently lifts the skin surface with suction (vacuum) and then delivers the product through multiple fine needles at a consistent spacing and depth.

2. Hand Injection vs Device Injection: Key Differences

Here is a detailed comparison so you can see the differences at a glance. Your choice should depend on your own skin concerns and how well you tolerate pain.

3. Choosing Wisely for Your Skin

1) Hate pain and need to get back to daily life fast? Device injection is recommended

The biggest reasons people give up on Rejuran are the severe pain and the raised bumps (needle marks) that appear across the whole face. Modern injector devices finely distribute the speed and pressure at which the product is delivered, noticeably reducing pain. Because the product spreads thinly and widely through the dermis, it is also a better fit if you have work or an important appointment the next day.

2) Fine lines around the eyes or hollow areas, where efficiency matters most? Hand injection is recommended

Device injection delivers the product mechanically over a wide area at a constant pressure, so on thin, curved areas (for example under the eyes, around the eyes and around the mouth) some product may leak out and be lost. Hand injection by an experienced practitioner, on the other hand, allows the depth to be finely adjusted to the thickness of the dermis, so there is almost no product loss and you get the full benefit of the ingredient.

4. An Aftercare Routine to Get the Most Out of Rejuran

Whichever method you choose, what ultimately determines your satisfaction with Rejuran is home care after the treatment. Please follow these rules for one week after treatment.

• Stay hydrated and apply a repair cream: This is when PN encourages cell regeneration in the skin. Reapply a repair cream with barrier-supporting ingredients such as panthenol, ceramides and cica throughout the day.

• Strict sun protection: UV exposure before the bumps and tiny needle holes have healed can lead to pigmentation, so always use sunscreen when you go out.

• Avoid activities that cause heat: For 3 to 4 days after treatment, it is best to avoid intense exercise, saunas, Korean jjimjilbang bathhouses and alcohol, all of which can trigger inflammation.

5. Conclusion: Which Is Right for You?

Neither Rejuran hand injection nor device injection can be called absolutely better. What matters most is choosing wisely based on your sensitivity to pain, the thickness of your skin and the main area you want to improve (focused care around the eyes vs overall texture). Before treatment, be sure to have a thorough consultation with a medical professional to build the plan that suits you best.