Ingredient · Updated

Lactic Acid

Neutral in 51

Found in 51 productsSee all

What is Lactic Acid?

Lactic acid is a naturally occurring organic acid produced through the fermentation of carbohydrates by lactic acid bacteria. It is commonly found in fermented foods and milk products.

In the food industry, lactic acid is used as a preservative, acidity regulator, and flavor enhancer. It helps to prolong shelf life by inhibiting the growth of certain bacteria and contributes to the tangy taste of fermented products. Health-wise, it is generally considered safe for consumption, although individual sensitivities might occur.

While lactic acid can be produced naturally, it can also be synthesized. On labels, it's good to note whether the product claims any specific benefits from natural fermentation processes.

Commonly found in: dairy products, pickles, sauces, crackers, candy

Benefits

  • Lactic acid can extend the shelf life of products by acting as a natural preservative.
FDA

Lactic acid is generally recognized as safe (GRAS) for use in food by the FDA.

Research

Research supports its use in food without significant health concerns, although individual sensitivities may occur.

Vegan

Lactic acid can be vegan if sourced from plant-based fermentation, but it is sometimes derived from dairy. Vegan labeling clarifies the source.

Sources: Overview of Food Ingredients, Additives & Colors

Scout's take

Lactic acid is a naturally occurring acid used as a preservative and flavoring agent. It is produced through fermentation and is generally recognized as safe. It helps maintain product acidity and extends shelf life.

The case against

In high concentrations, lactic acid can cause irritation or stinging.

from the analysis of Eucerin Advanced Repair Lotion for Very Dry Skin Bottle · echoed in 1 other analysis

May cause irritation or sensitivity, especially with sun exposure.

from the analysis of Kosas Chemistry AHA Serum Deodorant in Beachy Clean

In high concentrations, it may cause skin irritation.

from the analysis of All All Free Clear Liquid Fabric Softener - 80 fl oz

Excessive intake may cause digestive discomfort.

from the analysis of Kraft Singles American Cheese Twin Pack

The case for

Enhances flavor and acts as a preservative in food products.

from the analysis of Banza CHICKPEA PASTA MAC AND CHEESE · echoed in 8 other analyses

Helps preserve the product and enhance its flavor naturally.

from the analysis of Lesser Evil Cheezmos Cowboy Cheddar Chips · echoed in 1 other analysis

Lactic acid is effective in cleaning and is biodegradable, making it environmentally friendly.

from the analysis of Method Daily Shower Spray Eucalyptus Mint

More from Scout's analyses

Lactic acid is a natural preservative and flavoring agent. It is produced through the fermentation of carbohydrates and is generally safe for consumption. It helps maintain the acidity and flavor profile of foods.

from the analysis of Annie's Shells & Aged Cheddar Mac and Cheese

Fermentation acid used for pH and preservation — benign.

from the analysis of W3LL People Bio Powder Foundation

All 51 products with Lactic Acid

+ 27 more products in the Scout app

Where Lactic Acid shows up

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