What is Selenium Sulfide?
Selenium Sulfide, also known as Selenium Disulphide, is a compound with a unique chemical composition of selenium and sulfur. It is an inorganic compound that is amber-colored and has a viscous texture. This ingredient is derived from Selenium, a naturally occurring element that is often found in soil and certain foods. The process of making Selenium Sulfide involves the reaction of Selenium with Sulfur under specific conditions to form a stable compound.
The use of Selenium Sulfide in cosmetic products dates back several decades. It was initially used in the medical field for its antifungal properties, specifically for treating conditions like dandruff and seborrheic dermatitis. Over time, its benefits for hair health were recognized, and it was incorporated into cosmetic products.
When compared to similar ingredients used for the same purposes, such as Zinc Pyrithione or Coal Tar, Selenium Sulfide stands out for its dual functionality. Not only does it help control seborrhea and dandruff, but it also conditions the hair, leaving it soft and manageable. This dual functionality is not commonly found in other anti-dandruff ingredients.
Typically, Selenium Sulfide is used in hair care products like shampoos and conditioners. Its anti-seborrheic properties make it an ideal ingredient for products designed to control dandruff and scalp dermatitis. Additionally, due to its hair conditioning properties, it is often found in products aimed at improving hair texture and manageability.
Benefits and Uses
In this section, we will delve into the officially recognized benefits and uses of Selenium Sulfide:
Anti-Seborrheic
Selenium Sulfide is known for its anti-seborrheic properties. In simpler terms, it helps to control seborrhea, a skin condition that causes a red, itchy rash and white scales. When it occurs on the scalp, it is often called dandruff. Selenium Sulfide works by slowing the growth of yeast on the skin, which is a common cause of dandruff and seborrhea. This means that it can be a key ingredient in shampoos and other hair care products designed to treat dandruff and seborrheic dermatitis.
Hair Conditioning
Another official function of Selenium Sulfide is hair conditioning. It helps to improve the texture and appearance of hair, making it softer and easier to manage. This is achieved by forming a protective layer on the hair shaft, which helps to smooth the hair cuticle and provide moisture. This makes Selenium Sulfide a valuable ingredient in hair conditioners and other hair care products designed to improve hair health and manageability.
It’s important to note that these benefits are exclusively based on the officially recognized and defined functions of Selenium Sulfide. There may be other benefits and uses that go beyond the scope of these official functions. However, the anti-seborrheic and hair conditioning properties are the primary reasons why this ingredient is used in cosmetic products.
Safety Profile
Selenium Sulfide is not a banned or regulated ingredient in cosmetics. However, it is important to note that its concentration in cosmetic products is usually kept low to avoid potential side effects. It is generally considered safe for topical use, but like any other ingredient, it may not be suitable for everyone.
While Selenium Sulfide is not typically associated with allergenic potential, individuals with sensitive skin may experience irritation or an allergic reaction. Therefore, it is always recommended to perform a patch test before using any product containing this ingredient.
The potential side effects of topical application of Selenium Sulfide include:
- Redness
- Itching
- Dryness
- Peeling of the skin
- Changes in skin color
A note for women who are pregnant and/or breastfeeding – There is a lack of data on the safety of topical usage of Selenium Sulfide during pregnancy or breastfeeding. Therefore, it is recommended to consult a healthcare professional for further advice.
Adverse reactions to Selenium Sulfide are not common, but they can occur. The likelihood of experiencing side effects depends on individual skin sensitivity and the concentration of Selenium Sulfide in the product. Again, a patch test is recommended before widespread usage.
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 whose sources include 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.
