Narrative review examines lip filler techniques, revealing risks of adverse effects such as bruising while explaining importance of addressing asymmetry.
Introduction: Lips are widely regarded as the most esthetically significant feature of the face, particularly in females. With age, they tend to lose volume and definition as bone resorption, fat loss, and muscle thinning cause the upper lip to roll inward. Hyaluronic acid injections have become a popular intervention to restore volume, enhance shape, correct asymmetries, and define the lip margin and pout. Various injection techniques cater to different esthetic and functional concerns. By analyzing the latest literature, this review highlights best practices for achieving optimal outcomes in patients seeking lip fillers for indications such as volume loss, asymmetry, and perioral wrinkles. Additionally, it examines strategies to mitigate common adverse effects, including bruising, swelling, and overfilling. Aim: This study aims to provide a narrative review of the published medical literature on various techniques used in patients to inject lip fillers for different indications, with minimal side effects and natural-looking results. Material and Methods: The literature research considered published journal articles (clinical trials or scientific reviews). Studies were identified by searching electronic databases (MEDLINE and PubMed) and reviewing the reference lists of relevant articles. Only articles available in English were considered for this review. Results: Lip augmentation has gained popularity for enhancing esthetics and boosting confidence, focusing on three key areas: the vermilion border, the red lip region, and the philtrum. Fillers are injected to add volume, but excessive use can result in an unnatural appearance and restrict lip movement. Techniques such as needle injections offer precise filler placement, while blunt-ended cannulas are preferred for safer, deeper injections. Filler migration, particularly in the upper lip, can occur due to muscle movement, the type of filler used, poor technique, or external factors. Techniques such as the Paris and Russian Lip methods carry a higher risk of migration and unnatural results . Gradual augmentation with smaller amounts of filler is recommended for individuals with thin lips or those who are older, to ensure natural-looking outcomes. Proper technique, filler choice, and post-procedural care are essential for optimal, safe, and long-lasting results. Conclusion: This review highlights the significance of technique, filler choice, and patient anatomy in achieving optimal lip augmentation outcomes with minimal side effects. Advances in filler formulations and personalized approaches have improved stability, reduced migration risks, and enhanced patient satisfaction, while post-procedure care and education remain crucial for safe outcomes.
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Sharad et al. (2025) studied this question.
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