Risks of Alcohol in Skincare Products
- Roles of Alcohol in Skincare
- Is Alcohol Safe for Facial Skin?
- Fatty Alcohols: A Safer Alternative for Dry and Normal Skin
- Understanding Skin Type and Alcohol Suitability
The chemical components in skincare product formulations can range from simple to complex compounds. The differences in the chemical and physical properties of these compounds influence how they interact within a formulation. In skincare product development, it is essential for these compounds to dissolve properly. Thus, understanding their chemical properties, such as solubility in water or organic solvents like alcohol, is crucial.
Alcohol is a general term for any organic compound that contains a functional group known as a hydroxyl group (−OH) attached to a carbon atom. Alcohol serves multiple functions in cosmetic formulations, including as a solvent, preservative, astringent, drying agent, penetration enhancer, thickener, and denaturant. Common types of alcohol found on product labels include ethyl alcohol, ethanol, methanol, benzyl alcohol, and fatty alcohols.
Roles of Alcohol in Skincare
Alcohols like ethanol and isopropyl alcohol are often used to dissolve ingredients such as plant extracts. Additionally, alcohol possesses antimicrobial properties, helping prevent the growth of bacteria, fungi, or microorganisms in the product, thereby extending its shelf life. In products such as toners or facial cleansers, alcohol helps minimize pores by removing excess oil from the skin.
The temporary moisture loss creates a cooling sensation. In spray-based products like setting sprays or deodorants, alcohol aids in quick evaporation, ensuring the product dries rapidly without leaving residue.
Is Alcohol Safe for Facial Skin?
Skincare products containing alcohol are generally safe for individuals with normal to oily skin types. However, this is not the case for those with dry or sensitive skin, as alcohol can exacerbate dryness, potentially compromising the skin barrier. A weakened or thin skin barrier increases the risk of skin rashes, irritation, burning sensations, and flakiness.
Certain types of alcohol, such as denatured alcohol, ethanol, and isopropyl alcohol, have dehydrating effects on the skin. These are commonly used in toners or gel-based moisturizers due to their ability to provide a “tight,” cooling, and refreshing sensation. It is important to note that the amount of alcohol in the formulation plays a significant role.
Higher concentrations can strip more natural oils from the skin, leaving it overly dry and prone to irritation. Thus, alcohol’s impact on the skin is not universally negative; it depends on its concentration and role in the product.
Read more:
Alcohol in Skin Care: The Facts
Fatty Alcohols: A Safer Alternative for Dry and Normal Skin
Individuals with normal to dry skin are advised to use products containing fatty alcohols, which are derived from plant extracts and have milder effects on the skin. Fatty alcohols, such as cetearyl or cetyl alcohol, often appear as waxes that help maintain product texture. These alcohols are considered gentler due to their chemical structure. Fatty alcohols consist of long-chain alcohols with carbon chains ranging from C12 to C20. This structure makes them less volatile and gives them emollient properties that soften and protect the skin.
In contrast, methanol and ethanol are short-chain alcohols that evaporate easily and have strong astringent properties, often leading to dryness. Additionally, fatty alcohols can dissolve oils on the skin without damaging the skin barrier, whereas methanol and ethanol may strip away natural oils, potentially thinning the skin’s protective layer.
Understanding Skin Type and Alcohol Suitability
Amid the debate surrounding alcohol in cosmetic products, it ultimately depends on the user's skin condition. Sensitive skin types should avoid alcohol-based products, while oily and acne-prone skin types can tolerate them better. Understanding your skin's needs and selecting suitable products is vital, as individual skincare requirements vary.
Each ingredient in a cosmetic product has the potential to react differently on the skin. Without proper laboratory testing, the risk of irritation, allergies, or long-term effects can occur and not only harm consumers, but also your brand's reputation. Laboratory testing is not only about regulatory compliance, but also a form of responsibility as a manufacturer, to ensure that your products are safe, effective, and worthy of trust!
Author: Delfi
Editor: Sabilla
References:
Baharum, N. B., Daud Awang, M., Arshad, S., & Abd Gani, S. S. (2020). A Study of Literatures: Status of Alcohol in Cosmetics Products from Shariah Views in Malaysia . KnE Social Sciences, 4(9), 379–393. https://doi.org/10.18502/kss.v4i9.7338
Cosmetic Ingredient Review (CIR). 2022. Re-Review of the Safety Assessment of Methyl Alcohol.
Lachenmeier D. W. (2008). Safety evaluation of topical applications of ethanol on the skin and inside the oral cavity. Journal of occupational medicine and toxicology (London, England), 3, 26. https://doi.org/10.1186/1745-6673-3-26
