Rejuran vs Water Glow Injection: Comparing Hydration and Skin Texture

Two popular boosters with different priorities

Rejuran and Water Glow are two of the skin boosters international visitors ask about most often in Busan. Both are injected into the skin with fine needles, both can leave temporary bumps, and both are aimed at improving how the skin looks. But they are built around different ideas. Water Glow focuses on hydration, while Rejuran, a polynucleotide (PN) product often called a salmon DNA injection, focuses more on skin resilience and texture.

This guide compares them on the points patients care about most: hydration, texture, timeline, downtime and price.

Hydration: where Water Glow tends to lead

If your main concern is skin that looks dry, dull or tight, a hydrating booster is usually the starting point of the conversation. Water Glow is designed around hydration, so it is often chosen by people who want:

A fresher, dewy look. Many patients want the skin to look more moisturised.
A gentle introduction to boosters. It is a common first booster for people new to injections.
A shorter planning horizon. Hydrating boosters are often described as giving a visible freshness relatively soon after swelling settles.

Rejuran may also help skin feel healthier, but hydration is not its main focus.

Texture: where Rejuran is more often discussed

If your concern is uneven texture, fine lines or skin that looks thin and tired, Rejuran is more commonly considered. It is generally associated with:

Skin resilience. Supporting the skin's overall quality over time.
Texture refinement. Some patients notice smoother-looking skin after a course.
Recovery support. It is often discussed alongside laser treatments.
Gradual results. Improvement is usually described as building over weeks and across sessions.

Side-by-side comparison

Main goal. Water Glow: hydration and glow. Rejuran: resilience and texture.
Timeline. Water Glow: freshness often noticed relatively soon. Rejuran: gradual change over weeks.
Injection feel. Both use numbing cream. Some patients find Rejuran slightly more noticeable because of its thicker texture.
Downtime. Both can cause small bumps, redness and possible bruising that usually settle within a short time. Rejuran bumps are often more visible at first.
Sessions. Both are often repeated as a course or for maintenance, as the doctor advises.

Prices at Daybeau Clinic Seomyeon

Both treatments are on our price list. The prices below are first-visit prices in KRW, VAT excluded (10% VAT is added at payment), checked October 2026:

Water Glow 2cc. 39,000 KRW.
Rejuran 2cc. 139,000 KRW.
Exosome 2.5cc. 49,000 KRW, another option sometimes discussed between the two.

When comparing these prices with other clinics, check that you are comparing the same volume of product, whether VAT is included, and whether the price is a first-visit offer or a regular price. Small differences in these terms can make two quotes look more different than they are.

The price difference reflects the different products. A higher price does not mean a booster is better for you; the right choice depends on your skin. Daybeau Clinic Seomyeon applies first-visit prices once per new patient per item, and payment is made on the day after the consultation confirms the plan.

Combining boosters and safety checks

Some patients alternate or combine hydration-focused and resilience-focused boosters over time, especially if they have both dryness and texture concerns. Whether this suits you, and whether both can be done on the same day, is a decision for the doctor. A simple plan with one booster is often a sensible start, particularly on a first visit.

For more detail, see our Rejuran page and our skin boosters overview.

Before any booster, tell the doctor about allergies, including any fish allergy for PN products, skin conditions, recent treatments and medications. Pregnant or breastfeeding patients should consult a doctor and generally postpone cosmetic injections. Results and suitability vary, and a doctor decides at consultation which booster, if any, is appropriate.