The FDA advises not to undergo any filler procedure with needle-free devices. Here is all you need to know about the warning.
Several critical facial arteries course only a few millimeters below the skin's surface. The throngs of TikTokers using hyaluron pens to plump their lips probably don't realize that "the labial arteries [which supply the upper and lower lips] can be shockingly close to the skin surface," Dr. Sundaram notes, especially in more mature skin, which has thinned with age.
She recently treated a hyaluron-pen user whose "upper lip was much bigger than the lower lip, and then one side of the upper lip was significantly larger than the other, and there was bruising, and it was lumpy," she says. Beyond the pens' questionable depths and dispersion patterns, "the fact that [they implant] the product as a single bolus, or depot, rather than in a continuously moving linear placement is a concern from both a safety and an aesthetic perspective," Dr. Sunder says. "An experienced injector never depots product, especially in the lips."
Even if someone somehow manages to procure a pure, legitimate HA filler, getting it into the pen opens another can of worms. "[They] require the transfer of filler from its original syringe to an ampoule within the pen," notes Dr. Sundaram. "This is a multi-step process — connect the transferring syringe to a needle, draw up filler, squirt it into the ampoule — and every time it’s done, there is a risk of contamination.
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