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Transparent soap is a variation of solid bar soap that not only functions to clean dirt but also has a scrubbing function. Transparent solid soap is one of the soap innovations that has become an attractive soap. Saffron also has antibacterial properties due to the presence of flavonoids, tannins and saponins. Flavonoids are compounds that can have anti-inflammatory, anticancer and antioxidant effects, because they can inhibit the formation of free radicals. It has been used traditionally to treat various ailments including depression, cardiovascular disease, menstrual disorders, asthma, insomnia, digestive ailments, bone pain and several other ailments. Saffron pistil juice is made by dissolving in CO₂-free distilled water. Phytochemical screening was carried out on saffron pistil extract. Saffron pistil juice is made in various soap formulas, namely formula I, formula II and formula III. The positive control used was chloramphenicol antibiotic and the negative control was DMSO. There were several tests carried out on Saffron pistil extract in addition to phytochemical screening, namely antibacterial testing on transparent soap with Saffron pistil extract as a soap additive. The results of phytochemical screening showed that the pistil of saffron (Crocus sativus L) contained secondary metabolites, namely: flavonoids, alkaloids, tannins, and saponins. And for the results of the antibacterial activity research also showed that the Saffron pistil extract against transparent soap which can be used as a soap additive, the antibacterial results had a strong inhibition at the average value of formula III which was 20.5 and formula II was 18.4 mm and formula I 16.1 mm, against Staphylococcus aureus bacteria.

Transparent solid soap, namely soap in the form of a bar with a transparent appearance, the resulting foam on the skin is softer. Saffron has been used as a food ingredient, treatment, and traditional medicine since ancient times. The content of saffron is like saponins which can be used in making transparent soap. This study aims to formulate a transparent soap from saffron essence as a skin protecting property. This research includes the manufacture of saffron extract, manufacture of transparent soap and transparent soap test parameters including organoleptic test, pH test, foam stability test, water content test and preference test by respondents. Based on research results, saffron extract can be formulated into transparent solid soap preparations that meet the requirements for water content in accordance with SNI, namely for F0 9.12 ± 0.56, FI 8.6 ± 0.42, F2 8.6 ± 0.43, F3 8.6±0.93. For the results of the foam height test, it was found that the foam results were quite stable. For the results of the irritation test, it can be concluded that soap preparations containing saffron essence are safe to use because they do not show any side effects after use.