Injectable aesthetics have gained popularity among beauty seekers in recent years, offering effortless enhancement with just a few injections. However, some claim that post-treatment stiffness can make subtle facial expressions difficult. Is this truly the case? Common injectable fillers include hyaluronic acid, botulinum toxin, and autologous fat. Let's examine:
Botox
Botox works by "relaxing" targeted facial muscles, reducing superficial muscle tension that causes wrinkles. This weakens the muscle activity responsible for facial lines, resulting in smoother, more youthful-looking skin and effectively delaying signs of aging. After Botox injections for facial slimming, weakened masseter muscle strength may lead to unnatural facial expressions, typically becoming noticeable around 7 days post-injection.
Overdosing or misplaced injections can exacerbate these effects.
Hyaluronic Acid
Unlike Botox, hyaluronic acid primarily functions to plump the skin and hydrate it. At this level, it does not directly impact facial expressions.
However, the facial expression muscles form an intricate and complex system. Even the slightest contraction of a single muscle can convey specific meanings.For instance, when hyaluronic acid is injected into the cheek area, excessive volume can occupy significant space. This compression reduces the room for muscle contraction during facial expressions, potentially affecting subtle micro-expressions.
Autologous Fat Grafting
To enhance fat survival rates, fat grafting involves multi-layered and multi-tunnel injection techniques. This ensures each fat cell makes contact with surrounding tissues.This technique involves layered injections from the skin down to the bone surface. Consequently, the contractile force of facial muscles may be indirectly reduced, ultimately affecting certain microexpressions.
Overall, all three injectable treatments can impact microexpressions to varying degrees, though the effects are generally within acceptable limits. As with any procedure, there are pros and cons, requiring patients to weigh the benefits and drawbacks for themselves.