2026-07-03
💡 An Accurate Explanation of ‘Why the Face Looks Sunken After Hyaluronidase’
An accurate explanation of why the face may look sunken after hyaluronidase treatment, clarifying that it reveals original facial structures rather than damaging natural skin.

After a hyaluronidase treatment, some patients feel that ‘their face suddenly looks sunken’
or ‘it looks like they lost weight.’
However, this phenomenon
👉 is not a change caused by hyaluronidase destroying the natural hyaluronic acid in the skin.
Then why does it look that way?
① Because the ‘volume originally supported by the filler’ has disappeared.
Hyaluronidase is an enzyme that breaks down hyaluronic acid fillers.
In other words, the sunken appearance visible after the procedure is
NOT a newly formed depression ❌
NOT the result of damaged skin ❌
but rather,
👉 as the volume previously supported by the filler is removed,
the original facial structure is revealed again.
Especially in cases where there was
excessive filler injected,
filler injected into the wrong layer,
or sagging that was ‘held up by volume,’
the change after hyaluronidase can be felt more drastically.
② Due to ‘temporary tissue changes’ immediately after hyaluronidase.
As hyaluronidase breaks down the hyaluronic acid matrix,
it also causes temporary changes to the moisture structure within the tissues.
As a result,
temporary sinking
or a feeling of loose skin
may occur, but
👉 this is a change that naturally recovers once the enzyme activity period passes.
Research papers also state that there is no evidence that hyaluronidase
permanently reduces natural skin hyaluronic acid or causes skin aging.
③ The problem of ‘overuse of hyaluronidase’ or ‘unnecessary repeated use.’
The real risk factor for sinking after hyaluronidase is not the drug itself, but how it is used.
Using a larger dose than necessary,
unnecessary repeated procedures,
or an approach of dissolving everything overall without structural analysis
in these cases,
✔ even the actually necessary supporting volume is removed,
✔ and the sunken impression can be intensified.
Therefore, hyaluronidase is
**not a drug to ‘use a lot of,’ but a drug to ‘use accurately.’**
🧠 Core Summary of This Section
The reason the face looks sunken after hyaluronidase is not because the skin is damaged, but because the original structure hidden by the filler is revealed, and it is mostly temporary or an issue with the method of use.