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Ingredient Analysis: Hydroxydaidzein

This page was last updated: 6 months ago. All information accurate at time of publishing.
Discover Hydroxydaidzein (pronounced Hydroxy-daid-zein), a potent antioxidant and skin conditioner derived from soybeans, and learn about its synthesis, benefits, uses, and safety profile in skincare products in this comprehensive guide.

What is Hydroxydaidzein?

Hydroxydaidzein, also known as 4H-1-Benzopyran-4-one, 3-(3,4-dihydroxyphenyl)-7-hydroxy-,3′-Hydroxydaidzein, and 7,3′,4′-Trihydroxyisoflavone, is a potent antioxidant and skin conditioning agent used in a variety of cosmetic products. This compound is a type of isoflavone, a class of organic compounds and a type of phytoestrogens that are structurally similar to human estrogen. Isoflavones are primarily found in leguminous plants, and Hydroxydaidzein is specifically derived from soybeans.

The use of Hydroxydaidzein in cosmetics is relatively recent, with its antioxidant properties being the primary reason for its inclusion in skincare products. It is synthesized through a process that involves the extraction of isoflavones from soybeans, followed by a series of chemical reactions that convert the extracted isoflavones into Hydroxydaidzein.

Compared to similar ingredients like resveratrol and vitamin C, Hydroxydaidzein offers a unique combination of benefits. While all three are potent antioxidants, Hydroxydaidzein also has skin conditioning and protecting properties, making it a versatile ingredient in skincare formulations. However, unlike vitamin C, which is water-soluble, Hydroxydaidzein is lipid-soluble, which means it can penetrate the skin’s lipid barrier more effectively.

Hydroxydaidzein is typically used in a variety of skincare products, including moisturizers, serums, and anti-aging creams. Its antioxidant properties make it particularly beneficial in products designed to combat the signs of aging, as it can help to neutralize harmful free radicals that contribute to the aging process. Additionally, its skin conditioning and protecting properties make it a valuable addition to products designed to nourish and protect the skin.

Benefits and Uses

In this section, we will delve into the officially recognized benefits and uses of Hydroxydaidzein:

Antioxidant

As an antioxidant, Hydroxydaidzein plays a crucial role in protecting the skin from harmful free radicals. These free radicals are unstable molecules that can cause damage to the skin cells, leading to premature aging and other skin issues. By neutralizing these free radicals, Hydroxydaidzein helps to maintain the health and vitality of the skin, keeping it looking youthful and radiant.

Skin Conditioning

Hydroxydaidzein also functions as a skin conditioner. This means it helps to keep the skin soft, smooth, and hydrated. It achieves this by enhancing the skin’s ability to retain moisture, preventing dryness and flakiness. This makes Hydroxydaidzein an excellent ingredient for those with dry or dehydrated skin, as it can help to restore the skin’s natural moisture balance and improve its overall texture and appearance.

Skin Protecting

Another key function of Hydroxydaidzein is its skin-protecting properties. It helps to form a protective barrier on the skin’s surface, shielding it from environmental stressors such as pollution, UV rays, and harsh weather conditions. This can help to prevent skin damage and maintain the skin’s overall health and well-being.

It’s important to note that these benefits are based on the officially recognized and defined functions of Hydroxydaidzein. There may be other potential benefits and uses of this ingredient that go beyond the scope of these official functions. However, these additional benefits are not officially recognized and therefore, should be considered with caution.

Safety Profile

Hydroxydaidzein is not a banned or regulated ingredient in cosmetics. It is generally considered safe for use in cosmetic products. However, like any ingredient, it may not be suitable for everyone and there is always a potential for allergic reactions.

Potential side effects of topical application of Hydroxydaidzein may include:

  • Redness
  • Itching
  • Skin irritation

A note for women who are pregnant and/or breastfeeding – There is currently insufficient data on the safety of topical usage of Hydroxydaidzein during pregnancy or breastfeeding. As such, it is recommended to consult a healthcare professional for further advice.

Side effects or adverse reactions from Hydroxydaidzein are not common, but individual responses can vary. As with any new skincare product, it is recommended to perform a patch test before widespread usage to ensure there is no adverse reaction.

This ingredient analysis has been commissioned by Truth In Skincare (TiS), an independent industry regulator. The analysis was conducted by a TiS-appointed industry consultant, using sources including the CosIng (Cosmetic Ingredient Database – by the European Commission), the Personal Care Products Council (PCPC), The US Food & Drug Administration (FDA), as well as other various publicly available sources.