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Preservatives: when they matter and when they help

· 3 min read

"No preservatives" is one of the most trusted lines on a pack. Sometimes it's a genuinely good sign. Sometimes it's the opposite. It depends on what the product is.

In food

Most of the snacks we list don't need preservatives. Nut butters, roasted makhana, ghee, banana chips and khakhra are dry or nearly water-free, so microbes struggle to grow. A short list without preservatives is usually a sign of a simple recipe. It's also a reminder that shelf life may be shorter, so check the date.

When preservatives are used, Indian labels must name them, for example "Preservative (INS 211)" for sodium benzoate. Here's what the evidence says on the common ones:

  • Sodium benzoate (INS 211). EFSA re-evaluated it in 2016, set a safe daily intake and found no cancer concern. Some young children who drink a lot of flavoured drinks could go over that limit. In drinks that also contain vitamin C, tiny amounts of benzene can form. FDA surveys found most products had none or very low levels.
  • Sorbates and nitrites. A large French study published in January 2026 followed more than 100,000 adults. It found that higher intake of potassium sorbate was associated with more cancer diagnoses, and nitrites with prostate cancer. This is an observational study and a new finding, so it needs confirming. Nitrites mostly come from cured meats, which we don't list.
  • Antioxidants such as tocopherols (vitamin E). These slow fat from going rancid. Indian rules treat them as a separate class from preservatives, so a pack can say "no preservatives" and still list "mixed tocopherols." That's legitimate.

In personal care and home care

Here, preservatives are a safety feature. Anything that contains water, such as a lotion, liquid soap, shampoo or spray cleaner, can grow mould and bacteria once it's opened, and you're putting it on your skin. A water-based lotion with no preservative system is a worry, not a plus.

The questions worth asking are about which preservative and whether you react to it:

  • Some preservatives are common causes of skin allergy. Formaldehyde releasers, for example, now must carry a warning in the EU above a set level.
  • Parabens have a scary reputation, but EU regulators still allow them within set limits after detailed reviews. "Paraben-free" is mostly a marketing line.
  • Gentler options such as benzyl alcohol, sorbic acid, sodium benzoate and hydroxyacetophenone are common in "natural" brands. They're still preservatives, and that's fine.

Water-free products, such as solid deodorants, balms and soap bars, often don't need preservatives at all.

Water-free doesn't mean preservative-free in every case. Some balms add vitamin E to slow rancidity, and that's an antioxidant, not a preservative.

How Everykind labels it

  • No preservatives (green) is for foods and water-free products.
  • Preservatives (amber) names what's used. For lotions and cleaners, our note says plainly that a preservative is what keeps the product safe once it's open.

We'd rather you know what's in the bottle than be reassured by a label that leaves out why it's there.

Sources

This is a summary of published research, not medical advice. Related tags on our standard: No preservatives, Preservatives.