Permanent Lip Fillers and Silicone: Why I Don’t Recommend Them?

“I don’t want to have this done over and over every year—I want something permanent” is a phrase I hear often at my clinic. It seems like a reasonable request: do it once, and you’re done. But when it comes to lip fillers, permanence—contrary to popular belief—is not an advantage; it’s the biggest risk factor.

In this article, I explain why permanent fillers and silicone treatments are not recommended, and why reversibility is so important. For an overview of the procedure, My Guide to Lip Fillers You can read it.

What does "permanent filling" mean?

Permanent fillers are made from materials that the body cannot break down over time. Silicone and certain synthetic polymers fall into this category. Once placed in the tissue, they remain there; they do not dissolve or get absorbed.

In contrast, the hyaluronic acid fillers used today are temporary. The body naturally metabolizes this substance over time, and the lips return to their original state.

Why is reversibility so important?

This is the most critical difference between permanent and temporary fillers. Hyaluronic acid fillers have one advantage: they can be dissolved with the hyaluronidase enzyme when necessary.

Why is this important? Because two things can go wrong with a cosmetic procedure. First, you may not be satisfied with the results; the appearance may be too plump, or asymmetry may remain. Second, and more seriously, there are rare but urgent situations—such as the filler compressing a blood vessel or leaking into one—that require immediate medical attention.

In both cases, there is a way to reverse a temporary filling. There is no such option for a permanent filling. How the melting process works lip filler melting I explained it in my article.

Why is the silicone lip procedure listed under a separate heading?

Liquid silicone is a substance that was used in the past for lip augmentation and is no longer the preferred choice for cosmetic lip procedures today.

The problem is this: silicone becomes permanently embedded in the tissue, and over time, the body may form a capsule around this foreign material. Years later, hardening, irregular lumps, or inflammatory reactions may develop. When these long-term complications arise, since there is no enzyme to break down the material, the only option is surgical removal, which can leave permanent scarring on the lip tissue.

“Is every product marketed as ”long-lasting” actually long-lasting?

There are also products on the market marketed as “semi-permanent” or “long-lasting.” Some of these contain ingredients that work by stimulating the body’s own collagen production.

The use of these products on the lips is a separate issue: the lips are a mobile area with a delicate texture; some products that are suitable for other areas of the face may not be as safe when used here. Which product is suitable for which area, Types of Lip Fillers It's explained in detail in my article.

So, do I have to do this every year?

The duration of hyaluronic acid fillers varies depending on the area and the product; for the lips, the results typically last anywhere from a few months to a year. This timeframe may seem like a drawback to you, but it offers two benefits.

First, your face changes over time; a permanent filler is planned based on your current face, not on what your face will look like in ten years. Second, you’ll have the opportunity to review the plan at each follow-up visit and adjust it downward if necessary.

A face changes over time, but fillers do not

This is the least-discussed but most important issue with permanent fillers. A filler placed in one’s twenties was not designed with the facial anatomy of someone in their forties in mind.

As we age, the fat pads in the cheeks become thinner, the bone structure recedes, and the tissues shift downward. A filler that remains fixed while everything around it changes may begin to look out of proportion over time. With temporary fillers, this issue resolves on its own: the material dissolves, and the contour is redefined.

Will the lip return to its original shape after the filler dissolves?

This is a common question, and the answer is usually reassuring. When the hyaluronidase enzyme is applied, the hyaluronic acid filler dissolves, and the lips return to an appearance similar to what they were before the procedure.

The common concern that lip tissue will permanently sag generally does not apply to procedures performed in reasonable amounts. However, the situation may be different in tissues that have sustained very high volumes of filler over a long period of time; this is another reason to exercise moderation when it comes to dosage.

If you've had permanent fillers before

There’s no need to panic; not everyone with permanent fillers will experience problems. However, follow-up is important.

If you notice a new hardness on your lip, irregular lumps that you can feel, or recurring swelling or redness, see a doctor. Also, if you are planning to undergo a new procedure in that area in the future, be sure to mention that you have had permanent fillers in the past; this information directly affects the method used and the associated risks.

What Is a Granuloma, and Why Is It So Important?

This is the risk associated with permanent fillers that deserves the most attention. A granuloma is an inflammatory tissue reaction that forms around a foreign substance the body cannot eliminate.

The problem lies in the timing: it can manifest months, and sometimes even years, later. It presents as hard, palpable nodules on the lip, along with intermittent swelling and redness. When this condition occurs with temporary fillers, a dissolving enzyme offers a solution; with permanent fillers, however, no such solution exists.

What Other Permanent Substances Are There Besides Silicone?

Although liquid silicone is the best-known option, it is not the only permanent option. Some products containing synthetic polymers are also designed not to break down in the body.

Some of these products can be used on other areas of the face for different indications. However, the lips are a unique area: they have thin skin, are constantly in motion, and are highly vascularized. A product that works well on another part of the face may not be as safe when used on the lips.

“Be Aware of the Term ”Semi-Permanent”

Some products on the market are marketed as “semi-permanent” or “long-lasting.” This term is not a clear-cut medical category and can be used to describe two different things.

Some products actually remain in the body longer but are eventually broken down by the body. Others work by stimulating collagen production; while they are absorbed over time, the tissue changes they induce are permanent. In the second group, the concept of “reversibility” does not work the same way as it does with temporary fillers. For this reason, it is important to clearly ask about the product’s name and category.

The Real Question: Longevity or Control?

When discussing this topic with my clients, I frame the choice this way: A permanent filling saves you time but takes control out of your hands. A temporary filling requires repeat procedures but gives you the opportunity to make the decision anew with each one.

I’ve noticed that in cosmetic procedures, what determines satisfaction is often not the result itself, but the freedom to change that result. Knowing that you can’t reverse a procedure can cause unease, even if the result is good.