Paparan sinar ultraviolet (UV) berlebih dapat menyebabkan kerusakan pada kulit bibir, seperti kekeringan, pecah-pecah, hingga inflamasi kronis. Penelitian ini bertujuan untuk mengetahui aktivitas dan mutu fisik sediaan Lip Balm Ekstrak Kulit Anggur Hitam Bali (Vitis Vinifera L. Var. Alphonso Lavelle) sebagai sun protection. Kulit Anggur Hitam Bali diketahui mengandung senyawa aktif seperti antosianin dan flavonoid yang memiliki aktivitas antioksidan dan kemampuan menyerap sinar UV. Penelitian dilakukan menggunakan tiga variasi konsentrasi ekstrak (1%, 3%, Dan 5%) dan satu kontrol tanpa ekstrak. Evaluasi uji fisik mencakup Uji Organoleptis, Homogenitas, pH dan Daya Sebar. Hasil penelitian menunjukkan bahwa seluruh sediaan memiliki mutu fisik yang baik dan sesuai standar. Nilai SPF tertinggi diperoleh pada konsentrasi ekstrak 3% (SPF = 7,442) yang tergolong sebagai proteksi ekstra. berdasarkan hasil tersebut, sediaan lip balm Ekstrak Kulit Anggur Hitam Bali berpotensi dikembangkan sebagai produk sun protection berbahan alami. Kata kunci: Lip Balm, Kulit Anggur Hitam Bali , SPF.

The excessive exposure to ultraviolet (UV) radiation can cause damage to the skin of the lips, leading to dryness, chapping, and even chronic inflammation. To evaluate the activity and physical quality of lip balm formulation containing Bali black grape (Vitis vinifera L. var. Alphonso Lavelle) peel extract as sun protection agent. The peel of Bali black grapes is known containing active compounds such as anthocyanins and flavonoids, which possess antioxidant properties and the ability to absorb UV radiation. This study employed laboratory-based experimental study which investigated lip balm formulations using varying concentrations of grape peel extract (1%, 3%, and 5%), along with control formulation without the extract. The sun protection activity was evaluated using UV-Vis spectrophotometry at wavelengths of 290–320 nm. The findings showed that all lip balm formulations containing 1%, 3%, and 5% Bali grape peel extract demonstrated good physical quality and met standard requirements. The highest SPF value was observed in the 3% extract formulation (SPF = 7.442), which was into the category of "extra protection". These findings indicated that lip balm formulations with Bali black grape peel extract (1%, 3%, and 5%) have good physical properties and showed potential as sun protection products, particularly in the category of extra protection. Keywords: Lip balm, Bali Black Grape Peel, SPF.