RHA 4 + lidocaine

RHA 4 + lidocaine is an **injectable dermal filler** composed of **cross-linked hyaluronic acid** combined with **lidocaine** as a local anesthetic[2][3][4][5][7]. Its primary use is for the **correction of moderate to severe dynamic facial wrinkles and folds**, such as nasolabial folds, cheek augmentation, and restoration of facial volume in adults. The hyaluronic acid in RHA 4 is both modified and non-modified to mimic the behavior and elasticity of native hyaluronic acid found in the skin, improving volume while maintaining natural movement and softness. Lidocaine is included to reduce discomfort during injection. The filler is biodegradable and is administered into the deep dermis or superficial subcutaneous tissue. **Teoxane** developed and manufactures this product, often in collaboration or distribution partnership with companies like **Revance** for the U.S. market[2][3][6][7]. The product is FDA approved for specific aesthetic indications in adults[7].

Brand names

RHA 4 with lidocaineRHA4 with lidocaineRHA-4 with lidocaineTeosyal RHA 4 Lidocaine

Other names

Teosyal RHA 4 Lidocaine