Volume 3 ; Issue 1 ; in Month : Jan-June (2026) Article No : 116
Kanupriya Ahluwalia

Abstract

The creation and thorough effectiveness assessment of a multipurpose lip oil stain containing hyaluronic acid (2%), vitamin C (1.5%), Australian lemon peel oil (0.4%), menthol, and an SPF 15 UV protection system are reported in this study. The formulation was created to offer hydration, antioxidant protection, sensory appeal, pigment enhancement, and photoprotection all in one hybrid cosmetic system because of the anatomical vulnerability of the lips. After evaluating the product's rheological qualities, physicochemical stability, and in vitro SPF and MPF, 100 healthy volunteers were evaluated for dermatological safety and in vivo clinical efficacy. The formulation showed good stability under stress, positive sensory qualities, and broad-spectrum photoprotection with an in vitro SPF of 15.2 ± 1.1. Significant improvements in lip hydration, surface smoothness, brightness, and tone uniformity were found after clinical examination. Non-irritating behavior was confirmed by a 48-hour closed patch test (PII = 0.00). Overall, the findings validate the formulation as a lip oil stain that is safe, effective, and scientifically proven to have both functional and cosmetic advantages.

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