Determination of sun protection factor and physical remanence of dermocosmetic emulgels formulated with Manilkara zapota (L.) fruit extract

Purpose: To develop a stable emulgel formulation from Manilkara zapota fruit extract (MZFE) and evaluate its sun-protective factor (SPF) physical retention on facial skin.
 Methods: Active test formulations containing MZFE placebo (containing no active ingredients) were prepared by dispersing the primary emulsion into gel phase. Both subjected to physicochemical evaluation, stability studies, assessment of possible photo-protective properties. The was determined in vitro spectrophotometric analysis. Non-invasive vivo skin bioengineering technique used assess UV-quenching effects formulations.
 Results: A cosmetically acceptable loaded with obtained. control exhibited optimum stress tests. promising both (SPF = 14.215 ± 0.140) (lasted for approximately 120 min).
 Conclusion: developed MZFE-loaded possesses suitable photoprotection capability vitro, displays quenching against specific wavelengths UV light, indicating UV-filtering property