{"product_id":"sodium-benzoate","title":"Sodium Benzoate","description":"\u003cp\u003e\u003cstrong\u003e3\/10\/2026 - We have switched vendors and have received an alternative supply of Sodium Benzoate. Please reference the Specification Sheet found under the SDS \u0026amp; Tech Data tab for any changes. \u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eCAS No.:\u003c\/strong\u003e 532-32-1\u003c\/p\u003e\n\u003cp\u003eSodium Benzoate is the inactive salt of benzoic acid. It is soluble in water where it converts to benzoic acid, its active form, at a low pH. Benzoic acid is very pH dependent. While it shows some activity up to pH 6 (about 1.55%), it is most active at pH 3 (94%).\u003c\/p\u003e\n\u003cp\u003eAs benzoic acid, it is considered to be primarily an anti-fungal, but it shows some activity against bacteria.  It is poor against pseudomonads.  Benzoic acid is inactivated by non-ionics and by raising the pH.\u003c\/p\u003e\n\u003cp\u003eSodium Benzoate is not a broad spectrum preservative for cosmetic use and should be combined with other preservatives. If Sodium Benzoate is used as a preservative, the pH of the finished product may need to be lowered enough to release the free acid for useful activity. \u003c\/p\u003e\n\u003cp\u003eSodium Benzoate is often combined with Potassium Sorbate in low pH products to provide a synergistic preservative effect against yeast and mold.\u003c\/p\u003e\n\u003cp\u003eFollowing is a chart of the relative activity at various pH:\u003c\/p\u003e\n\u003ctable style=\"width: 243.333px;\" border=\"1\" cellpadding=\"1\" cellspacing=\"1\" height=\"123\"\u003e\n\u003ccaption\u003e\u003cspan style=\"font-size: small; font-weight: bold;\"\u003eActivity of Benzoic Acid\u003c\/span\u003e\u003c\/caption\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 64px;\"\u003e\u003cspan style=\"font-weight: bold;\"\u003epH\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 176.333px;\"\u003e\u003cspan style=\"font-weight: bold;\"\u003e% Active Benzoic Acid\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"text-align: center; width: 64px;\"\u003e3\u003c\/td\u003e\n\u003ctd style=\"text-align: center; width: 176.333px;\"\u003e94\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"text-align: center; width: 64px;\"\u003e4\u003c\/td\u003e\n\u003ctd style=\"text-align: center; width: 176.333px;\"\u003e61\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"text-align: center; width: 64px;\"\u003e5\u003c\/td\u003e\n\u003ctd style=\"text-align: center; width: 176.333px;\"\u003e13.7\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"text-align: center; width: 64px;\"\u003e6\u003c\/td\u003e\n\u003ctd style=\"text-align: center; width: 176.333px;\"\u003e1.55\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"text-align: center; width: 64px;\"\u003e7\u003c\/td\u003e\n\u003ctd style=\"text-align: center; width: 176.333px;\"\u003e0\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003eThere is some concern that Sodium Benzoate in combination with L-Ascorbic Acid in products can form Benzene, a known human carcinogen. \u003cspan style=\"font-weight: bold;\"\u003eThe presence of ascorbic acid and benzoates alone does not lead to the formation of benzene.  Certain additional conditions are required for trace levels of benzene to form, including heat, ultraviolet light and metallic ions in the mixture.\u003c\/span\u003e Therefore, a product containing ascorbic acid and benzoates will not necessarily contain any detectable levels of benzene.  The use of EDTA, which chelates metallic ions can therefore be of assistance in the inhibition of benzene formation.    Citric Acid is not thought to induce significant benzene production in combination with Benzoic Acid, but some evidence suggests that \u003cspan style=\"font-style: italic;\"\u003ein the presence of ascorbic acid and benzoic acid\u003c\/span\u003e, citric acid may accelerate the production of benzene.  Therefore, the use of Sodium Benzoate and L-Ascorbic Acid and Citric Acid in the same cosmetic formulations should be avoided. \u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"font-weight: bold;\"\u003eAll cosmetic products should undergo microbial testing to ensure the efficacy of any preservative system.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"font-weight: bold;\"\u003eINCI:\u003c\/span\u003e\u003cspan\u003e \u003c\/span\u003eSodium Benzoate\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"font-weight: bold;\"\u003eCalifornia Prop 65 Statement:\u003cspan\u003e \u003c\/span\u003e\u003c\/span\u003eThe following statement is made in order to comply with the California Safe Drinking Water and Toxic Enforcement Act of 1986. This product is not known to the State of California to cause cancer, birth defects or other reproductive harm.\u003c\/p\u003e\n\u003ch5\u003eSDS \u0026amp; Tech Data\u003c\/h5\u003e\n\u003cp\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0026\/8317\/5001\/files\/Specification_Sheet_-_Sodium_Benzoate.pdf?v=1773155084\" target=\"_blank\" title=\"Specification Sheet - Sodium Benzoate\" rel=\"noopener\"\u003eSodium Benzoate Specification Sheet\u003c\/a\u003e\u003c\/p\u003e\n\u003cp\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0026\/8317\/5001\/files\/sds_sodium_benzoate_20260306.pdf?v=1773155084\" target=\"_blank\" title=\"SDS Sodium Benzoate\" rel=\"noopener\"\u003eSodium Benzoate SDS\u003c\/a\u003e\u003c\/p\u003e\n\u003ch5\u003eFormulation Guide\u003c\/h5\u003e\n\u003cp\u003eIt is recommended to add sodium benozate during cool down, after the emulsion has formed or to the water phase at \u003cspan\u003e60°C (156°F) or less. \u003c\/span\u003eBenzoic acid is very pH dependent; while it shows some activity up to pH 6 (about 1.55%), it is most active at pH 3 (94%).\u003c\/p\u003e\n\u003cp\u003eSome evidence suggests that \u003cspan style=\"font-style: italic;\"\u003ein the presence of ascorbic acid and benzoic acid\u003c\/span\u003e, citric acid may accelerate the production of benzene.  Therefore, the use of Sodium Benzoate and L-Ascorbic Acid and Citric Acid in the same cosmetic formulations should be avoided. \u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"font-weight: bold;\"\u003eRecommended Use Levels:\u003c\/span\u003e Up to 1% \u003cbr\u003e\u003cspan style=\"font-weight: bold;\"\u003eSolubility in water:\u003c\/span\u003e 556 g\/L\u003cbr\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003eTry out these formulations using this ingredient:\u003c\/p\u003e\n\u003cp\u003e\u003ca title=\"Goat Milk Lotion\" href=\"https:\/\/lotioncrafter.live\/blogs\/skin-care\/goat-milk-lotion\" target=\"_blank\"\u003eGoat Milk Lotion\u003c\/a\u003e\u003c\/p\u003e","brand":"Undisclosed","offers":[{"title":"4 oz - $4.85","offer_id":13079663738969,"sku":"SDBENZ-04","price":4.85,"currency_code":"USD","in_stock":true},{"title":"8 oz - $6.95","offer_id":13079663771737,"sku":"SDBENZ-08","price":6.95,"currency_code":"USD","in_stock":true},{"title":"1 lb - $10.95","offer_id":13079663804505,"sku":"SDBENZ-1","price":10.95,"currency_code":"USD","in_stock":true},{"title":"4 lbs - $38.95","offer_id":13079663837273,"sku":"SDBENZ-4","price":38.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0026\/8317\/5001\/products\/sodiumbenzoate.jpg?v=1571722094","url":"https:\/\/lotioncrafter.live\/products\/sodium-benzoate","provider":"Lotioncrafter","version":"1.0","type":"link"}