In the medical aesthetics industry, Rejuran has long been regarded as the "Hermes of dermal fillers." However, the debate surrounding it has never ceased: some insist that "manual injection is the essence of the treatment," while others believe that "machine injection is more consistent and hassle-free."
Is manual injection always superior for Rejuran? The answer is not simply black and white. Today, we will analyze the pros and cons of these two methods from a professional standpoint, helping you avoid blindly following trends.
✅ Why is "manual injection" considered the gold standard?
Many experienced practitioners in medical aesthetics prefer manual injection for valid reasons. The core ingredient of Rejuran is PN (polynucleotide), which has a relatively viscous texture, necessitating precise injection depth.
Precise Depth Control: Skilled doctors can accurately deliver the medication to the deep dermis through tactile feedback.
Highly Targeted: For specific areas such as the periorbital region and sides of the nose, manual injection allows for flexible adjustments to the needle angle and dosage, enabling targeted treatment where needed.
Zero Medication Waste: Compared to potential leakage with machine-administered injections, manual injections ensure that virtually no medication is wasted.
Key Point: If your goal is to address localized fine lines, dark circles, or specific scars, the advantages of manual injections are indeed irreplaceable.
✅ Manual Injections Aren't a "Myth," and You Should Be Aware of These Drawbacks
While manual injections are effective, they also pose significant challenges for consumers:
* Noticeable Pain: Even with the application of numbing cream, the sensation of needle insertion and the pressure during medication injection are still more intense than with machine injections.
* Longer Recovery Period: Manual injections can lead to more pronounced "wheals" (small bumps), which typically take 2-3 days or longer to fully resolve. Additionally, due to deeper puncture points, the likelihood of bruising is higher.
Requires the Doctor's Aesthetic Sense and Patience: If a doctor is rushed, uneven injection can easily result in post-treatment skin texture irregularities.
✅ Machine-Assisted Injection: A Time-Saving Tool of Modern Technology
With advancements in skin rejuvenation devices, machine-assisted injections have evolved from the crude methods of the past.
Even Distribution: The device can be set to a fixed depth and dosage, ensuring that every inch of facial skin receives nutrients evenly, avoiding uneven distribution that can occur with manual methods.
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