Sunken cheeks: how do Voluma XC, Radiesse, and fat injection differ?

Materials for adding volume to sunken cheeks differ in how long they last and whether they can be adjusted later. Hyaluronic acid products like Voluma XC do not necessarily outperform other materials in efficacy, but their strength lies in the ability to reverse them with a dissolving enzyme[1]. Radiesse (hydroxyapatite) tends to last longer but requires attention to nodule formation, while polylactic acid works by repeated visits to gradually build volume[1].

What is different about materials used on the cheeks?

Materials differ in how they expand and how long they last. Hyaluronic acid is a material that shows immediate results when injected and is gradually absorbed over time[2].

Radiesse is an injectable that mixes fine hydroxyapatite particles (30%) into a gel (70%)[3]. Polylactic acid works by stimulating collagen production in the body to gradually restore volume.[1][2]Fat injection involves harvesting fat from your own abdomen or thighs, processing it, and injecting it.[2].

How much do the durability guidelines differ?

Even within hyaluronic acid products, guidelines vary by formulation. Voluma XC is estimated at 18–24 months, while Restylane Lift, also used on cheeks, is estimated at 12 months[4][5]. Voluma XC has been reported in trials to maintain cheek volume for up to approximately 2 years[6].

Hydroxyapatite and polylactic acid are said to last about 1–2 years, which is longer than hyaluronic acid's 6–18 months[2]. Fat injection can persist for a long time, but how much is reabsorbed varies from person to person[2].

Is there a difference in efficacy?

Current research shows no clear difference. A meta-analysis of comparative trials for cheek treatment concluded that while hyaluronic acid is effective, it does not outperform other established materials[1].

Even among hyaluronic acid formulations, a meta-analysis comparing 6 trials (579 participants) reported differences in how side effects manifested depending on the product[7]. However, there are few trials for each individual product, so it is not yet clear which is best for your needs.

What are the differences in risks and ease of revision?

In terms of ease of revision, hyaluronic acid has an advantage. Hyaluronic acid can be broken down with a dissolving enzyme (hyaluronidase), making it a material that is easy to correct if overfilled or if complications arise[1][6].

Hydroxyapatite may be more prone to nodules and delayed inflammation[1]. With fat injection, placement in front of the cheek can look unnatural when smiling, and weight gain can cause excessive fullness, according to published reports[8].

All injection methods have rare reports of serious complications such as skin damage[2]. If you experience severe pain, skin color changes, or abnormal appearance after injection, contact the clinic where the procedure was performed immediately.

How do I choose the material that is right for me?

Narrowing down your options depends on what you prioritize.

Want immediate change and later adjustment: Hyaluronic acid (Voluma XC, etc.)[1]

Prioritize durability: Hydroxyapatite. Also confirm the risk of nodules[1][2]

Want gradual change over multiple visits: Polylactic acid[1]

Prefer using your own tissue or need larger volume: Fat injection. Also confirm reabsorption variability[2][8]

Comparison between fat injection and hyaluronic acid products in terms of durability, predictability of results, and complications continues to be debated[9].

What should I confirm at the consultation?

Which material is right depends on the degree of hollowing, skin thickness, overall facial balance, and how often you can visit. The information in this article alone is not sufficient to determine which material and how much should be injected into your cheeks.

At your consultation, confirm the material and amount to be used, expected durability, interval between touch-ups, and whether complications can be dissolved or removed if needed.