Ingredient Knowledge Base

Calcium Undecylenate: What It Is, Benefits, Dosage, and Sources

Nutrienting Team
12 min read

Calcium undecylenate is a chemical compound often encountered in discussions about antifungal agents and skincare. Essentially, it's the calcium salt of undecylenic acid, a naturally occurring fatty acid. Its primary role stems from its antifungal properties, making it a common ingredient in various over-the-counter preparations designed to address fungal skin conditions. Understanding what calcium undecylenate is involves looking at its chemical structure, its practical applications, and how it compares to related compounds.

What is Calcium Undecylenate?

At its core, calcium undecylenate is a salt formed when undecylenic acid reacts with calcium. Undecylenic acid itself is an 11-carbon mono-unsaturated fatty acid, meaning it has a chain of 11 carbon atoms with one double bond. This structure is key to its biological activity. When combined with calcium, it forms a stable powder that is less irritating than the acid form while retaining its beneficial properties.

The practical implications of this chemical structure are evident in its use. Being a salt, calcium undecylenate is often found in powder form, which allows for easier incorporation into various topical formulations like creams, powders, and sprays. Its stability and reduced irritancy compared to the free acid make it a preferred choice for consumer products. The primary trade-off is often potency; while generally effective, some might find the free acid more potent in specific applications, though at the cost of potential skin sensitivity.

For instance, consider a common scenario: athlete's foot. A person experiencing this fungal infection might reach for an antifungal powder. Often, calcium undecylenate is a key active ingredient in such products. Its role is to inhibit the growth of the fungi responsible for the infection, helping to alleviate symptoms like itching, burning, and scaling. It doesn't typically kill the fungi outright but rather creates an unfavorable environment for their proliferation, allowing the body's natural defenses to take over.

Calcium Undecylenate in Context: PubChem and Chemical Identifiers

When exploring substances like calcium undecylenate, resources like PubChem provide a wealth of scientific detail. PubChem, a public chemical database maintained by the National Center for Biotechnology Information (NCBI), lists calcium undecylenate under CID 14865. This identifier helps distinguish it uniquely among millions of chemical compounds. The chemical formula, C22H38CaO4, further describes its composition: 22 carbon atoms, 38 hydrogen atoms, 4 oxygen atoms, and 1 calcium atom.

Delving into these identifiers clarifies the compound's nature. The "C22H38CaO4" formula indicates that it's an organic calcium salt. Specifically, it implies two undecylenate chains are attached to a single calcium ion. This structural detail is important for understanding its physical and chemical properties, such as its solubility and stability, which in turn influence how it's formulated into products.

For practical purposes, this scientific identification confirms its legitimacy as a distinct chemical entity. For example, a manufacturer sourcing raw materials would use these identifiers to ensure they are acquiring the correct compound, rather than a similar but chemically different substance. This precision is crucial for quality control and efficacy in pharmaceutical and cosmetic applications. Without such specific identifiers, there would be significant ambiguity in chemical commerce and research.

CALCIUM UNDECYLENATE: An Overview from Inxight Drugs

Inxight Drugs, another valuable resource for drug information, offers a concise overview of calcium undecylenate. It typically highlights its classification and known uses. Inxight often categorizes it as an antifungal agent, reinforcing its primary therapeutic application. The platform may also list its chemical properties, molecular weight, and sometimes, regulatory status.

The practical implications here revolve around understanding its approved or recognized applications. For instance, if Inxight Drugs lists it primarily as an antifungal, it suggests that research and regulatory bodies have validated this particular use. This information helps consumers and healthcare professionals alike understand its intended purpose and limits.

Consider a scenario where someone is researching potential treatments for a stubborn fungal infection. Consulting a resource like Inxight Drugs would quickly confirm that calcium undecylenate is a recognized option for such conditions, providing a level of assurance regarding its established utility. It also helps to differentiate it from compounds with similar names but different functions, preventing misuse or misunderstanding.

Ingredient: 10-Undecenoic Acid Calcium

The term "10-Undecenoic acid calcium" is simply another way to refer to calcium undecylenate. It explicitly names the parent acid, 10-undecenoic acid (also known as undecylenic acid), and its salt form with calcium. The "10-" prefix indicates the position of the double bond within the 11-carbon chain of the undecylenic acid molecule.

This naming convention provides a clearer chemical description for those familiar with organic chemistry nomenclature. It directly tells us that the compound is derived from undecylenic acid. For example, if you're comparing different antifungal ingredients, seeing "10-Undecenoic acid calcium" immediately tells you its relationship to undecylenic acid, allowing for a more informed comparison of its properties and potential effects.

The practical implication is that it underscores the active component: the undecylenic acid moiety. While calcium itself is an essential mineral, in this compound, its role is primarily to form a stable salt with the undecylenic acid, facilitating its application and reducing irritation. The antifungal activity primarily resides within the undecylenic acid part of the molecule.

CAS 1322-14-1: Calcium Undecylenate

The Chemical Abstracts Service (CAS) Registry Number is a unique numerical identifier assigned to every chemical substance described in the scientific literature. For calcium undecylenate, the CAS number is 1322-14-1. This number is universally recognized and serves as a definitive identifier for the compound across different languages and scientific disciplines.

The importance of the CAS number cannot be overstated in chemical identification. It eliminates ambiguity. If you're searching for specific safety data sheets (SDS), purchasing chemicals, or conducting research, using the CAS number ensures you're referring to the exact compound.

For example, two different suppliers might list calcium undecylenate with slightly varying descriptions or brand names. However, if both provide the CAS number 1322-14-1, you can be confident they are referring to the identical chemical substance. This is particularly critical in industries where purity and precise identification are paramount, such as pharmaceuticals and specialty chemical manufacturing.

Calcium Undecylenate in Commerce and Industry

Beyond scientific databases, calcium undecylenate is a commercially produced chemical. Companies like Akshay Chemicals in Akola, for instance, manufacture and supply it as a raw material. This highlights its role in the broader chemical industry as an ingredient for various end products.

The commercial availability of calcium undecylenate indicates a consistent demand, primarily from the pharmaceutical, cosmetic, and personal care sectors. Manufacturers produce it in bulk for incorporation into antifungal creams, powders, and other topical treatments. The quality and purity of the commercially supplied calcium undecylenate are crucial for the efficacy and safety of the final consumer products.

A practical scenario might involve a company developing a new foot powder. They would source calcium undecylenate from a chemical supplier, relying on the supplier's specifications and quality control to ensure the ingredient meets the necessary standards for their product. This supply chain is fundamental to how such compounds move from chemical synthesis to consumer shelves.

Calcium Undecylenate Benefits

The primary calcium undecylenate benefits are directly tied to its antifungal properties. It's largely used as a topical agent to manage various fungal skin infections.

  • Antifungal Action: The most significant benefit is its ability to inhibit the growth of a broad spectrum of fungi, including dermatophytes (which cause athlete's foot, jock itch, and ringworm) and Candida species (which can cause yeast infections). It works by disrupting the fungal cell membrane, making it difficult for the fungi to thrive and reproduce.
  • Reduced Irritation: Compared to undecylenic acid, its calcium salt form is generally less irritating to the skin. This makes it suitable for use in over-the-counter products where direct skin contact is expected, enhancing patient compliance.
  • Odor Control: Fungal infections, particularly those affecting the feet, can contribute to unpleasant odors. By controlling the fungal population, calcium undecylenate can also help mitigate associated odor issues.
  • Powder Form Stability: As a powder, it's stable and easy to incorporate into various formulations, especially powders that help keep affected areas dry, which is crucial in managing fungal growth.

While these benefits are well-established for topical applications, it's important to note that calcium undecylenate is not typically ingested or used systemically for antifungal purposes. Its benefits are localized to the skin surface.

Calcium Undecylenate Dosage

When considering calcium undecylenate, remember that it's almost exclusively used topically. There isn't a standard daily oral dosage because it's not intended for internal consumption.

For topical applications, the dosage refers to the concentration of the compound in the product and the frequency of application.

  • Concentration: Over-the-counter products containing calcium undecylenate typically have concentrations ranging from 5% to 25%. The specific concentration often depends on the product type (e.g., powder, cream, spray) and the intended strength.
  • Application Frequency: Most products recommend applying the preparation to the affected area once or twice daily. The duration of treatment varies, often from 2 to 4 weeks, or as directed by a healthcare professional. It's generally advised to continue use for a period even after symptoms subside to prevent recurrence.

Example Dosage Guidelines (Topical):

Product TypeTypical ConcentrationApplication FrequencyDuration
Powder10-25%1-2 times daily2-4 weeks
Cream/Ointment5-15%1-2 times daily2-4 weeks
Spray10-20%1-2 times daily2-4 weeks

It's always essential to follow the specific instructions on the product label or consult a healthcare provider for personalized advice, especially for persistent or severe infections. Over-application doesn't necessarily lead to faster results and might increase the risk of minor skin irritation.

Calcium Undecylenate Side Effects

As a topical agent, calcium undecylenate is generally well-tolerated. However, like any active ingredient, it can cause calcium undecylenate side effects in some individuals. These are typically mild and localized to the application site.

Common side effects may include:

  • Skin Irritation: Redness, itching, or a mild burning sensation at the application site. This is often temporary and can be less pronounced than with the free acid form.
  • Dryness or Peeling: The skin in the treated area might become dry or peel, particularly if the product is used frequently or if the skin is already sensitive.
  • Allergic Reaction: Though rare, some individuals might experience an allergic reaction, manifesting as a rash, hives, or more severe swelling. If this occurs, discontinue use and seek medical attention.

Serious systemic side effects are not expected with topical calcium undecylenate due to minimal absorption into the bloodstream. Pregnant or breastfeeding individuals, or those with pre-existing skin conditions, should consult a doctor before using products containing calcium undecylenate.

Calcium Undecylenate Food Sources

There are no known calcium undecylenate food sources. Calcium undecylenate is a synthetic chemical compound, specifically a calcium salt of undecylenic acid. While undecylenic acid itself is a fatty acid that can be derived from castor bean oil, calcium undecylenate is not found naturally in foods.

Therefore, it is not something one would consume as part of a diet. Any intake would be through intentional application of topical products containing the compound. Its purpose is entirely external, focusing on skin surface conditions.

Calcium Undecylenate Supplement

There is no such thing as a calcium undecylenate supplement for internal consumption. As established, its application is topical, primarily for antifungal purposes on the skin. It is not designed to be ingested for nutritional benefits, nor is it marketed as a dietary supplement.

If someone encounters a product labeled as a "calcium undecylenate supplement" for internal use, extreme caution is advised. This would likely be a mislabeled or fraudulent product, as its chemical properties and intended use are not suited for dietary supplementation. For calcium supplementation, other forms of calcium (like calcium carbonate or calcium citrate) are used, and for undecylenic acid benefits, specific oral formulations of undecylenic acid might exist, but not generally as its calcium salt.

FAQ

Is undecylenic acid bad for you?

Undecylenic acid, the parent compound of calcium undecylenate, is generally considered safe for topical use when applied as directed. It has been used for many years in over-the-counter antifungal products. For most people, it's well-tolerated, though some individuals may experience mild skin irritation, redness, or itching at the application site. It's not intended for ingestion, and consuming large quantities could potentially be harmful. As with any active ingredient, individual sensitivities vary.

Is glyceryl undecylenate safe?

Glyceryl undecylenate is another derivative of undecylenic acid, where undecylenic acid is esterified with glycerol. It is commonly used in cosmetics and personal care products as a skin conditioning agent, emulsifier, and often for its antimicrobial properties. The Cosmetic Ingredient Review (CIR) Expert Panel has assessed glyceryl undecylenate and concluded it is safe for use in cosmetics in the current practices of use and concentration. It is generally well-tolerated on the skin, similar to calcium undecylenate, with a low risk of irritation or sensitization.

What is another name for undecylenic acid?

Another common name for undecylenic acid is 10-undecenoic acid. This name highlights its chemical structure, specifically the position of the double bond on the 10th carbon atom of the 11-carbon chain. It is also sometimes referred to by its IUPAC name, undec-10-enoic acid.

Conclusion

Calcium undecylenate is a specialized chemical compound primarily recognized for its antifungal properties. As the calcium salt of undecylenic acid, it offers a milder, more stable form suitable for topical application in various over-the-counter products. Its main utility lies in treating common fungal skin infections like athlete's foot, jock itch, and ringworm, where it works by inhibiting fungal growth.

For curious readers seeking clear, trustworthy information, it's important to remember that calcium undecylenate is exclusively for external use. There are no dietary sources or internal supplement forms of this compound. While generally safe and effective for its intended purpose, adhering to product instructions regarding dosage and being aware of potential mild skin irritation are key considerations. Understanding its chemical identity and specific applications helps demystify this common ingredient in personal care.

Nutrienting Team

The Nutrienting editorial team analyzes supplement labels from the NIH Dietary Supplement Label Database and scores them against clinical research. Our goal is to help you make data-driven supplement decisions.

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