If your skin feels tight not long after cleansing, if makeup lifts and flakes, and if it still feels dry underneath no matter how much you apply, the likely issue is not the surface but a lack of water deeper in the skin — a condition often called inner dryness. The treatment we frequently suggest for this concern is the skin booster injection. This article goes through the principle behind skin booster injections, the differences between products, the characteristics of Byryzn as a premium hyaluronic acid product, what changes when skin Botox is mixed in, and how an actual session proceeds.
How a skin booster injection works
A skin booster injection delivers a hyaluronic acid (HA) based product directly into the dermis. Hyaluronic acid can draw in roughly a thousand times its own weight in water, so once inside the skin it not only replenishes moisture immediately but also forms a moisture film that holds that water in place. As the skin fills with water from within, the tone looks clearer and takes on a soft sheen — which is where the Korean name "mul-gwang", or water glow, comes from. It is worth knowing, though, that products carrying the same skin booster label differ considerably in the quality and properties of the hyaluronic acid they use.
What sets Byryzn apart
Byryzn is a hyaluronic acid product developed by Hugel, a company known for its botulinum toxin and filler products. It is a medical device approved by Korea's Ministry of Food and Drug Safety, and its efficacy and safety have been examined in clinical trials. Related research has also been published in the Journal of Cosmetic Dermatology, an SCI-listed international journal.
Two technical points are worth noting. The first is durability, raised through cross-linking technology and a designed balance of viscosity and elasticity; a longer retention period than low-cost competing products is Byryzn's core point of difference. The second is its high hyaluronic acid content at 20 mg, which makes the moisture replenishment more noticeable.
Injection with Dermashine Pro
At SKINIQUE Clinic, Byryzn is administered with the Dermashine Pro device.
A tip carrying nine fine needles uses negative pressure to draw the skin up against it and then injects the product into the dermis at a set depth, so the depth is more uniform and the variation between areas smaller than with manual injection.
What changes when skin Botox is mixed in
A combined treatment is also possible, mixing a small amount of botulinum toxin (a domestic Korean product or Xeomin) into the Byryzn and injecting them together. As the toxin spreads through the dermis, sebum production decreases and pores tighten, and the surface of the skin is left more evenly smoothed. Effects on the regenerative side, reducing aged skin cells and supporting the increase of new ones, have also been reported. If you want to address not only tightness and roughness but also enlarged pores, reduced firmness and a dull tone at once, a combined treatment that delivers both the skin booster and the skin Botox effect can be an efficient choice.
How a session proceeds
The overall flow runs from consultation to preparation, injection and finishing. First, in the consultation with the doctor, you talk through your skin concerns and the direction you want, and decide whether to use Byryzn on its own or mix in botulinum toxin.
Once the treatment is decided, the face is cleansed and numbing cream is applied evenly across the whole face, then left to absorb.
Immediately before the treatment itself, the Byryzn product and the Dermashine tip to be used are opened in front of the patient so they can be checked.
In the case of a combined treatment, the botulinum toxin product is also shown directly and then mixed with the Byryzn on the spot.
During the injection stage, the principle is to bring the tip into close contact across every corner, including areas that are easy to overlook, so that the whole face is covered without gaps.
Once the injection is finished, a modeling pack helps calm the skin, and after a simple basic routine you are ready to head home. Needle marks and small raised marks may be visible for a few days afterwards, but they settle naturally within several days, so there is no need to worry.
Wrapping Up
Inner dryness is slow to resolve with moisturizers alone, which makes a skin booster injection that puts water directly into the dermis a practical alternative. Among these, Byryzn is a premium product with strengths in retention and content, and if pore and firmness concerns overlap, a combined arrangement with skin Botox is also worth considering. Detailed pricing is available on the price guide, and if you are wondering whether the standalone or the combined option suits your skin, please use chat about the right arrangement for your skin.
This article was written by Dr. Park Tae-hyung, Chief Director. He is the chief director of SKINIQUE Clinic and serves as an academic director of the Korean Society for Laser Dermatology and Trichology.
First published November 24, 2024 · Last reviewed August 23, 2026
This article is general medical information. Skin conditions and responses to treatment can differ from person to person. Whether to undergo treatment, and by which method, should be decided through a consultation.