1-Hexadecanol (CETYL ALCOHOL)
Global Regulation Summary
Overview of current status across major international markets.
Detailed Regional Status
| Region | Status | Max Conc. | Conditions | Source |
|---|---|---|---|---|
| πͺπΊ EU | Allowed | - | - | Official β |
| πΊπΈ USA | Allowed | - | - | Official β |
| π―π΅ Japan | Allowed | - | - | Official β |
| π°π· Korea | Allowed | - | - | Official β |
| π¬π§ UK | Allowed | - | - | Official β |
πΏ Natural Sources
Cetyl alcohol is derived from palmitic acid (C16 fatty acid), which is abundantly found in palm oil (Elaeis guineensis, containing 44% palmitic acid) and palm kernel oil (8% palmitic acid). Other natural sources include coconut oil (Cocos nucifera, 9% palmitic acid), soybean oil (11% palmitic acid), and animal fats such as tallow (28% palmitic acid), though plant sources dominate modern cosmetic production. Historically, cetyl alcohol was first isolated from spermaceti, the waxy substance found in the head of sperm whales, which gave it the name 'cetyl' from the Latin 'cetus' (whale). Today, all cosmetic-grade cetyl alcohol is derived from plant oils.
π How It's Made
Cetyl alcohol is produced through a two-step industrial process: (1) Extraction/separation: Palmitic acid (C16) is obtained from plant oils through hydrolysis or saponification. Triglycerides are broken down into free fatty acids using high-pressure steam (250Β°C, 50 bar) or alkaline hydrolysis. The fatty acid mixture is then fractionated through distillation or crystallization to isolate palmitic acid. (2) Hydrogenation: Palmitic acid is converted to cetyl alcohol through catalytic hydrogenation. The carboxylic acid group (-COOH) is reduced to a primary alcohol group (-CH2OH) using hydrogen gas at high temperature (250-300Β°C) and pressure (200-300 bar) with a metal catalyst, typically copper chromite (Cu2Cr2O5) or nickel. The reaction is: C15H31COOH + 2H2 β C16H33OH + H2O. Modern production increasingly uses renewable catalysts and 'green hydrogen' to reduce environmental impact. The final product is purified through distillation and crystallization to achieve >95% purity.
π Uses in Cosmetics
Cetyl alcohol is used in face and body lotions (2-8%), light creams (3-10%), hair conditioners (1-4%), shampoos (0.5-2%), lipsticks (5-15%), and makeup foundations (2-6%). Its functions include: (1) Emollient: provides a soft, smooth feel without greasiness. (2) Thickener: increases viscosity and creates a luxurious texture. (3) Emulsion stabilizer: helps prevent separation of oil and water phases. (4) Opacifier: gives products a white, creamy appearance. (5) Consistency regulator: controls the firmness of solid products like lipsticks and sticks. Cetyl alcohol has a melting point of 49-50Β°C and a molecular weight of 242.44 g/mol. It creates lighter, less waxy textures compared to longer-chain alcohols like stearyl (C18) or behenyl (C22) alcohol. The HLB value is approximately 15-16 when ethoxylated (as ceteth compounds). It works best in formulations at pH 4-8 and can be used as a sole emulsifier in simple systems or combined with emulsifying waxes and anionic/nonionic surfactants for more complex formulations. Typical use with emulsifiers: 3-5% cetyl alcohol + 1-2% emulsifying agent.
π¬ Other Applications
Cetyl alcohol is widely used in pharmaceutical topical preparations including creams, ointments, and lotions as an emollient and consistency regulator. It serves as an excipient in tablet manufacturing, providing binding and lubricating properties. In industrial applications, cetyl alcohol functions as a lubricant in plastics processing, a foam stabilizer in firefighting foams, and an anti-foaming agent in textile manufacturing. The food industry uses food-grade cetyl alcohol as an emulsifier, anti-caking agent, and thickener, though its use is limited compared to cosmetics. It appears in products like chewing gum bases and certain food coatings. Cetyl alcohol is also employed in the production of specialty chemicals including quaternary ammonium compounds, ceteth emulsifiers, and cetyl esters. The ingredient finds use in industrial lubricants and as a processing aid in polymer production.
π‘ Fun Facts
- ⒠Cetyl alcohol was first discovered in 1817 by French chemist Michel Eugène Chevreul when he isolated it from spermaceti (whale oil). The name 'cetyl' comes from the Latin word 'cetus' meaning whale. All modern cetyl alcohol is plant-derived, with whale sources abandoned decades ago.
- β’ Despite its name, cetyl alcohol does not cause the drying or irritation associated with 'drying alcohols' like ethanol or isopropyl alcohol. The 'alcohol' designation refers only to its chemical structure (a hydroxyl -OH group), not its cosmetic properties. This causes frequent confusion in 'alcohol-free' marketing.
- β’ Cetyl alcohol creates lighter, less waxy textures than stearyl alcohol (C18) because its shorter carbon chain (C16 vs. C18) results in lower viscosity and faster absorption. This makes it ideal for light lotions and summer formulations.
- β’ The ingredient is non-comedogenic with a comedogenicity rating of 2 out of 5, making it suitable for acne-prone skin despite concerns about 'alcohols' clogging pores.
- β’ Cetyl alcohol is accepted under most natural and organic certification standards (ECOCERT, COSMOS, NATRUE) because it can be derived from plant sources through relatively simple processes without synthetic ethoxylation.
- β’ In the 1930s-1950s, cetyl alcohol revolutionized cosmetic formulation by enabling the creation of stable, smooth creams without the heavy, greasy feel of traditional cold creams based on beeswax and mineral oil.
- β’ The melting point of cetyl alcohol (49-50Β°C) is why it must be heated during cream manufacturing. Once cooled within an emulsion, it solidifies to form a lamellar gel network that traps water and oil, providing structure and stability.
- β’ Cetyl alcohol is readily biodegradable (>60% in 28 days) and has very low aquatic toxicity (LC50 >100 mg/L), making it environmentally preferable to many synthetic alternatives.
- β’ When combined with ceteth-20 (the ethoxylated version), cetyl alcohol forms an emulsifying wax system that creates highly stable lotions without the need for additional synthetic emulsifiers. This combination is called 'emulsifying wax NF' in North America.
Frequently Asked Questions
What is CETYL ALCOHOL used for in cosmetics?
CETYL ALCOHOL is primarily used for emulsion stabilising in cosmetic products. It also serves as emollient, opacifying. The ingredient is commonly found in various cosmetic and personal care products.
Which countries regulate CETYL ALCOHOL?
CETYL ALCOHOL is approved for cosmetic use in all major markets: EU, JP, US, UK, KR, with no significant restrictions.
Where can I find official regulation information about CETYL ALCOHOL?
Official information about CETYL ALCOHOL regulations can be found on government websites: EU CosIng database, US FDA Cosmetics page, Japan MHLW cosmetics standards, UK Government cosmetics guidance, and Korea MFDS. Always verify regulatory status with these official sources before making formulation decisions.
Disclaimer
The information on this website is for educational and informational purposes only and is not intended as medical advice. While we strive for accuracy based on official government databases, cosmetic regulations change frequently. Always consult with a qualified professional or refer to the latest official regulatory documents for compliance. We are not responsible for any actions taken based on the information provided here.