BYRYZN, Recommended For
- Those whose skin feels tight and who have more fine lines
- Those who want to hydrate the skin from within while also restoring elasticity
- Those worried about pain during treatment

How It Works and How It Is Performed

Lidocaine Is Included
The product contains lidocaine, an anesthetic ingredient, which helps reduce the burden of pain felt during the injection.
The degree of pain felt varies from person to person.
If you are allergic to lidocaine, please be sure to tell us before treatment.

Made by Cross-Linking Hyaluronic Acid
This product weaves hyaluronic acid into a net-like structure so that it stays longer within the skin.
It replenishes moisture and elasticity within the skin together, and is used for skin where dryness and fine lines are both a concern.
Frequently Asked Questions
Does BYRYZN also add collagen directly?
BYRYZN is not a collagen product but a cross-linked hyaluronic acid (HA) skin booster. It addresses hydration and fine lines in facial skin, and its ingredient differs from LAETIGEN, which directly replenishes collagen.
If it's cross-linked hyaluronic acid, isn't it the same as filler?
BYRYZN is a skin booster combining cross-linked hyaluronic acid with lidocaine. At LOERE, unlike filler used to fill hollow areas, it is used to address skin hydration and fine lines.
Is the treatment very painful?
BYRYZN contains lidocaine, which eases the burden of pain during treatment. Because the sensation varies from person to person, we explain it during your consultation.
Can I have BYRYZN if I am allergic to lidocaine?
BYRYZN contains lidocaine, so treatment cannot be performed if you are allergic to lidocaine. If you have had an allergic reaction to anesthesia or an injection before, please let us know before the product is chosen. Treatment is restricted if you are allergic to any of the ingredients, are pregnant or breastfeeding, or have inflammation or infection in the treatment area.
How often should I have the treatment?
For most skin boosters, we advise several sessions at 4-week intervals. The number of sessions is decided based on your skin condition and progress, and the degree of change may vary from person to person.
Will I have swelling or bruising after treatment?
Bruising, swelling, and stiffness may occur, and in most cases these improve within 1–2 weeks. Small raised bumps at the injection sites may last for 1–2 weeks. Other side effects may rarely occur; we explain them in detail during your consultation before treatment.
By Principle, By Evidence
We begin by listening carefully to what you want.
We set the scope and intensity of each treatment to suit your skin condition.
We explain in full the effects you may expect and the limits of the treatment.