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Lactoperoxidase: What Is It, Cosmetic Uses & Side Effects

Priya Singh
Fact-Checker: Priya Singh
This article was last updated on: May 27, 2023
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Picture this: you’re standing in the beauty aisle, looking for a new cream or serum to add to your skincare routine. You pick up a product and read the ingredients list, only to find yourself lost in a sea of scientific names and complicated terms. Sound familiar? We’ve all been there, wondering if that tongue-twister of an ingredient is actually beneficial to our skin. One such ingredient, lurking within cosmetic products, is Lactoperoxidase. Quite a mouthful, right? This article will explore the intricate world of Lactoperoxidase, shedding light on its cosmetic uses and potential side effects.

What is Lactoperoxidase?

In the context of cosmetics, Lactoperoxidase is a natural enzyme derived from milk. It’s also known as LPO or lactoxidase. Its primary function in skincare and cosmetic products is as a light stabilizer. Lactoperoxidase works by neutralizing reactive oxygen species, which can cause cosmetic products to degrade and lose their effectiveness.

It may be found as a stand-alone ingredient, but it’s more commonly used as part of a wider formulation of ingredients to protect and preserve the shelf life and efficacy of the product.

Who Can Use Lactoperoxidase?

Lactoperoxidase is suitable for all skin types, as its primary function is to protect and stabilize cosmetic products rather than directly benefiting the skin. Most Lactoperoxidase derived from dairy sources means it may not be suitable for vegans. However, vegetarians can use products containing this ingredient.

Pregnant and breastfeeding women should have no issues using cosmetic products containing Lactoperoxidase, but as always, it’s best to consult a healthcare professional if you have any concerns.

Lactoperoxidase’s Cosmetic Uses

Based on Lactoperoxidase’s light stabilizer function, there are several benefits to its inclusion in cosmetic products:

  • Preserves product consistency and effectiveness: By neutralizing reactive oxygen species, Lactoperoxidase helps keep the product stable and prevents premature degradation. This means the active ingredients in your creams and lotions remain effective for a more extended period.
  • Maintains product color: Lactoperoxidase can protect against color changes caused by exposure to sunlight and oxygen, ensuring your cosmetic products retain their original appearance.
  • Protection against harmful microorganisms: Although Lactoperoxidase’s primary function is as a light stabilizer, it also exhibits antimicrobial properties. This makes it useful in products that require natural preservation against bacterial, fungal, and yeast growth.
  • Prolongs shelf life: As it neutralizes reactive oxygen species and protects against harmful microorganisms, Lactoperoxidase ultimately prolongs the shelf life of cosmetic products, ensuring you get the most out of your favorite beauty essentials.

Lactoperoxidase Potential Side Effects

As with any cosmetic ingredient, individual reactions to Lactoperoxidase can vary from person to person, primarily due to differences in skin type, sensitivities, and allergies. It’s essential to find your skin type to ensure that you’re using suitable products.

Potential side effects and interactions of Lactoperoxidase include:

  • Skin irritation: Some individuals may experience redness or irritation as a result of using a product with Lactoperoxidase, particularly if they have sensitive skin.
  • Allergic reaction: A rare but possible side effect is an allergic reaction to the ingredient, which could cause itching, swelling, or hives.

If you experience any side effects while using Lactoperoxidase or a product containing it, discontinue use immediately and consult with a healthcare professional or dermatologist. However, it’s essential to note that adverse reactions are quite rare, and Lactoperoxidase is generally considered safe and effective for most people when used correctly.

Wrapping up the discussion on potential side effects, it’s crucial to emphasize the importance of patch-testing any new cosmetic product. Following a proper patch testing guide could help prevent undesirable reactions and ensure the suitability of the product for your unique skin type.

Comedogenic Rating

Lactoperoxidase has a comedogenic rating of 0, meaning it is non-comedogenic and should not clog pores upon use. This rating is due to its primarily preservative and stabilizing role in cosmetic products, with no direct impact on the skin. As a result, Lactoperoxidase is generally suitable for individuals prone to acne and breakouts.

Conclusion

Not all ingredients in personal care products, such as skincare, have an immediate impact on our skin. Some components, like Lactoperoxidase, play a vital role in supporting the overall formulation and maintaining the stability and effectiveness of the product. These ingredients are considered non-active but still contribute to the quality and longevity of cosmetic products.

Though not wildly popular or well-known, Lactoperoxidase has essential functions for maintaining cosmetics’ quality over time.

In quick summary, Lactoperoxidase is a versatile and valuable ingredient, with generally minimal side effects and strong light-stabilizing properties, making it an indispensable player in the world of cosmetics.

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