Comparing E211 - Sodium benzoate vs E285 - Sodium tetraborate (borax)
Overview
Synonyms
Products
Found in 16,173 products
Found in 13 products
Search rank & volume
Awareness score
Search volume over time
Interest over time for 2 keywords in U.S. during the last 10 years.
Interest over time for 6 keywords in U.S. during the last 10 years.
Popular questions
Is sodium benzoate bad for you?
Generally no—it's an approved preservative with an acceptable daily intake (ADI) of 0–5 mg/kg body weight, and typical intakes are well below this. Rare sensitivities (e.g., hives/asthma-like symptoms) can occur, and in vitamin C–containing drinks exposed to heat/light it can form trace benzene, which manufacturers work to minimize.
Is sodium benzoate safe?
Yes—it's authorized by regulators (e.g., FDA, EFSA, JECFA) with an ADI of 0–5 mg/kg body weight and is GRAS in foods up to 0.1%. Those with sensitivities may wish to limit it, and beverages containing both sodium benzoate and ascorbic acid should be protected from heat/light to prevent benzene formation.
Is sodium benzoate safe for skin?
Yes—it's widely used as a cosmetic preservative at low concentrations and is considered safe by regulatory and review bodies. It may occasionally cause mild irritation or sensitization, especially on very sensitive or damaged skin.
Is sodium benzoate bad for hair?
No—at the low levels used to preserve shampoos and conditioners it does not damage hair fibers. As with many preservatives, higher concentrations can irritate the scalp, but consumer products use small amounts.
Is sodium benzoate harmful?
Not at permitted food and cosmetic levels; safety limits (e.g., ADI 0–5 mg/kg body weight) are set to prevent harm. Main concerns are rare intolerance reactions and trace benzene formation in vitamin C–containing drinks under heat/light, which industry monitors and minimizes.
How to make slime without borax?
Mix 2 parts cornstarch with 1 part water (add a drop of food coloring) to make a simple borax-free “oobleck”; adjust ratios to change firmness. Other borate-free options include gelatin- or psyllium-fiber-based slimes.
Is borax toxic?
Yes—borax (sodium tetraborate) can irritate skin/eyes and is harmful if swallowed; chronic high exposure to boron compounds is linked to reproductive toxicity. It’s not permitted as a food additive in the EU or US, so keep it away from food and children.
What is borax used for?
It’s used in detergents/cleaners, laboratory buffers, flame retardants, metal fluxes, and as an insecticide; in food it was historically used as a preservative/firming agent but this use is largely banned.
Does borax kill ants?
Yes—when mixed into a sugar or protein bait, small amounts of borax are carried back to the colony and kill ants over time; place baits carefully and keep them away from children and pets.
How to make slime with borax?
Dissolve 1 teaspoon borax in 1 cup warm water; in another bowl mix 4 oz white glue with 1/2 cup water and coloring, then slowly add the borax solution while stirring until it gels and knead. Do not ingest, avoid contact with eyes, and wash hands after use (gloves if sensitive).