Great question — and you’re already thinking in the right direction. When it comes to drooping sides of the lips (often called downturned oral commissures in medical terms), there usually isn’t a one-size-fits-all solution. In most cases, the most natural and long-lasting results come from a multi-modality approach rather than choosing between threads or filler alone. At age 38, the drooping you’re noticing is commonly caused by a combination of volume loss, soft tissue collagen loss, and loss of bone density around the mouth. Here’s how we typically think about it: Dermal filler can be very effective for gently supporting the corners of the mouth and restoring structure to the surrounding areas (such as the marionette region). When placed conservatively and strategically, filler can help improve the downturn without adding heaviness or an overfilled look. Threads can be helpful in select patients, particularly when there is tissue laxity higher in the face contributing to downward pull. Since you had a great experience with cheek threads before, that tells me your tissue likely responds well to collagen stimulation and subtle lift which is valuable information when creating a treatment plan. In many cases, combining subtle structural support with filler and addressing skin quality and collagen over time yields the most balanced, natural result. Regarding your upper lip and Cupid’s bow, yes, filler can absolutely be placed only in the Cupid’s bow if that’s your goal. A skilled injector can enhance definition and shape without adding unnecessary volume to the body of the lip. This is especially important for maintaining a refined, age-appropriate look. Ultimately, the best approach is one that looks at your face as a whole, not just one feature, and builds a plan that works with your anatomy. That’s why an in-person assessment is so important to determine the right combination of treatments for you. Aesthetic treatments should always be discussed with and performed by a trained, licensed, and medically certified aesthetic provider. The recommendations above are for educational purposes only and do not replace an in-person consultation, examination, or personalized medical advice.