Sunscreen is used to protect the skin from UV radiation. One of the natural ingredients potentially swed in sunscreen is starfruit (Averrhoa carambola L.) extract, which contains flavonoid compounds. The starfruit, originated from Depok, Indonesia, was extracted with aqueous solution and rotary evaporated to obtain a viscous yield. Extract's phytochemistry screening in tandem with thin layer chromatography was performed. The sunscreen formulation was firstly prepared by dissolving the materials into each aqueous and oil phase, continued by mixing both phases with the extracts. Three formulations were prepared with different extracts concentration of 2, 4, 6% w/v. All formulations were observed physically through organoleptic assessment, homogeneity, pH, spray pattern, adhesive spreadability continued by stability assessment in 4 & 40°C storage temperature for 24 hrs. Both extracts and all formulations were evaluated using a UV-Vis spectrophotometer within the wavelength range of 290-320 nm at 5 nm intervals for SPF value determination. All measurements were repeated three times. The extract yield revealed its flavonoid content. All three formulations exhibited good physical characteristics and storage stability. The spray formulation containing 2% concentration of starfruit extract provided maximum protection (SPF 14.09). Formulations with 4% extract offered ultra protection (SPF 16.66), while formulations with 6% extract provided even higher ultraviolet protection (SPF 18.33). Among all tested concentrations, the formulation with 6% extract concentration demonstrated the highest SPF value, which is 18.33, offering ultra protection against sunlight. This study demonstrates that the spray formulation with starfruit extract as a natural sunscreen ingredient has the ability to absorb high levels of Sunscreen is used to protect the skin from UV radiation. One of the natural ingredients potentially swed in sunscreen is starfruit (Averrhoa carambola L.) extract, which contains flavonoid compounds. The starfruit, originated from Depok, Indonesia, was extracted with aqueous solution and rotary evaporated to obtain a viscous yield. Extract's phytochemistry screening in tandem with thin layer chromatography was performed. The sunscreen formulation was firstly prepared by dissolving the materials into each aqueous and oil phase, continued by mixing both phases with the extracts. Three formulations were prepared with different extracts concentration of 2, 4, 6% w/v. All formulations were observed physically through organoleptic assessment, homogeneity, pH, spray pattern, adhesive spreadability continued by stability assessment in 4 & 40°C storage temperature for 24 hrs. Both extracts and all formulations were evaluated using a UV-Vis spectrophotometer within the wavelength range of 290-320 nm at 5 nm intervals for SPF value determination. All measurements were repeated three times. The extract yield revealed its flavonoid content. All three formulations exhibited good physical characteristics and storage stability. The spray formulation containing 2% concentration of starfruit extract provided maximum protection (SPF 14.09). Formulations with 4% extract offered ultra protection (SPF 16.66), while formulations with 6% extract provided even higher ultraviolet protection (SPF 18.33). Among all tested concentrations, the formulation with 6% extract concentration demonstrated the highest SPF value, which is 18.33, offering ultra protection against sunlight. This study demonstrates that the spray formulation with starfruit extract as a natural sunscreen ingredient has the ability to absorb high levels of Sunscreen is used to protect the skin from UV radiation. One of the natural ingredients potentially swed in sunscreen is starfruit (Averrhoa carambola L.) extract, which contains flavonoid compounds. The starfruit, originated from Depok, Indonesia, was extracted with aqueous solution and rotary evaporated to obtain a viscous yield. Extract's phytochemistry screening in tandem with thin layer chromatography was performed. The sunscreen formulation was firstly prepared by dissolving the materials into each aqueous and oil phase, continued by mixing both phases with the extracts. Three formulations were prepared with different extracts concentration of 2, 4, 6% w/v. All formulations were observed physically through organoleptic assessment, homogeneity, pH, spray pattern, adhesive spreadability continued by stability assessment in 4 & 40°C storage temperature for 24 hrs. Both extracts and all formulations were evaluated using a UV-Vis spectrophotometer within the wavelength range of 290-320 nm at 5 nm intervals for SPF value determination. All measurements were repeated three times. The extract yield revealed its flavonoid content. All three formulations exhibited good physical characteristics and storage stability. The spray formulation containing 2% concentration of starfruit extract provided maximum protection (SPF 14.09). Formulations with 4% extract offered ultra protection (SPF 16.66), while formulations with 6% extract provided even higher ultraviolet protection (SPF 18.33). Among all tested concentrations, the formulation with 6% extract concentration demonstrated the highest SPF value, which is 18.33, offering ultra protection against sunlight. This study demonstrates that the spray formulation with starfruit extract as a natural sunscreen ingredient has the ability to absorb high levels of ultraviolet rays.

Keyword: Averrhoa Carambola L, Starfruit, sunscreen, SPF, Spray