Rejuran vs. Water Glow Injection: What's the Difference and Which Is Right for You?
Rejuran and Water Glow Injection are both skin booster–type treatments that supply hydration and nutrients to the skin, but they differ in the ingredients used and their overall approach. Rejuran is based on PN (polynucleotide) extracted from salmon and aims to improve skin tissue, while Water Glow Injection uses hyaluronic acid (HA) to target immediate hydration and radiance. Which treatment is suitable depends on your skin condition and goals, so a consultation with a specialist is necessary.
Rejuran and Water Glow Injection are two treatments commonly mentioned when trying to achieve 'glass skin.' Because their names sound similar and both involve injecting substances into the skin using fine needles or microneedles, they're easy to confuse, but the ingredients used and the direction of the expected results differ.
This article outlines the differences in principle between the two treatments, the recovery process and downtime, and what to pay attention to in home care during the recovery period after treatment. It's important to decide on a treatment and whether to proceed only after having your skin condition diagnosed and consulting with a specialist.
Rejuran and Water Glow Injection Differ from the Ground Up
Rejuran is a treatment that injects PN (polynucleotide) extracted and purified from salmon reproductive cells into the dermis. PN is known to be involved in remodeling skin tissue and creating an environment conducive to collagen production, and it is designed to target improvements in the skin's own volume and texture. Rather than immediate radiance, it focuses on the skin tissue gradually improving over time.
Water Glow Injection is a general term for treatments commonly based on hyaluronic acid (HA), an ingredient known for its ability to draw in and hold onto moisture within the skin. It is injected evenly into the dermis, aiming for immediate hydration, elasticity, and radiance on the skin's surface. Many people report noticing supple, smooth skin texture right after the treatment.
In summary, Rejuran places relatively more emphasis on 'remodeling the skin tissue itself,' while Water Glow Injection focuses more on 'immediate condition improvement through hydration.' That said, both the degree and duration of effects vary considerably between individuals for both treatments, so it's advisable to decide on a treatment direction only after thoroughly discussing your skin condition and desired goals with a specialist.
Treatment Recovery and Downtime
Since both treatments involve injecting substances into the dermis using microneedles or fine needles, needle marks, redness, and slight swelling or bruising may appear right after the procedure. These reactions usually subside within a few days, but the degree and duration of downtime can vary depending on individual skin condition and the treatment area.
Because hyaluronic acid provides immediate hydration, Water Glow Injection tends to produce a relatively quick sense of moisture and radiance after treatment. Rejuran, on the other hand, is known to take somewhat longer for the PN to act on skin tissue, so changes tend to appear more gradually. Both treatments are often repeated to maintain results, and the treatment interval or number of sessions should be decided in consultation with a specialist based on skin condition.
If redness or sensitivity in the treated area persists, or if you notice any unusual reactions, it's safer to contact the clinic where you received the treatment rather than leaving it to your own judgment.
The Recovery Period After Treatment: Home Care Makes a Difference
Whether you receive Rejuran or Water Glow Injection, your skin is temporarily left with microscopic damage and a weakened barrier right after the procedure. During this period, avoiding products with irritating ingredients, excessive massage, or exfoliation, and instead focusing on gentle care centered on hydration and soothing while minimizing irritation, can help with recovery.
Following basic care guidelines—such as sun protection, adequate moisturizing, and refraining from excessive sauna use, alcohol, and strenuous exercise—is also important for the recovery of the treated area and maintaining overall skin condition. Recovery speed and perceived results can vary depending on individual skin condition and lifestyle habits.
FAQ
Recovery After Treatment: Home Care Makes the Difference
During the period right after treatment when soothing and barrier care are needed, choosing products that are low in irritation and focused on hydration can be helpful. The Abiogen Cream is a 2-STEP product consisting of STEP 1 Ultra Cera-Rich (soothing and barrier care) for use immediately after treatment and in the early recovery period, and STEP 2 Hydro Re-Boosting for deep hydration during the later recovery period, and can be referenced as part of a home care routine after skin booster treatments like Rejuran and Water Glow Injection. However, cosmetics do not replace the treatment itself, and regardless of product use, if you experience any unusual reaction, it's best to consult with the clinic where you received the treatment first.
FAQ
- Can Rejuran and Water Glow Injection be done together?
- It's known that the two are sometimes performed together, but this depends on skin condition and treatment goals. It's safer to determine whether combining them is appropriate, as well as the interval between treatments, through consultation with a specialist.
- Which of the two treatments is better suited for me?
- If you want immediate hydration and radiance, Water Glow Injection is often mentioned; if you want changes in the skin tissue itself, such as texture and elasticity, Rejuran is often mentioned. However, this is just a general tendency, and the suitable treatment can vary depending on individual skin condition, so it's best to confirm through a consultation.
- How soon after the treatment can I apply makeup or wash my face?
- The recommended timing can vary depending on the treatment area and method, so it's difficult to give a general answer. It's most accurate to follow the aftercare instructions provided by the clinic where you received the treatment.
- How long do the effects last?
- For both treatments, the degree and duration of effects vary by individual and can differ depending on lifestyle habits and skin condition. Please check with a specialist for accurate information.
- What should I do if redness or swelling after the treatment lasts a long time?
- Temporary redness or swelling often subsides naturally, but if symptoms persist or worsen, it's important to contact the clinic where you received the treatment rather than trying to manage it yourself.
Medically reviewed by 아비쥬의원 의료진. (September 10, 2026)