What is cetearyl alcohol in skincare?
Cetearyl alcohol is a blend of cetyl and stearyl alcohol, both fatty alcohols derived from plant oils such as coconut or palm. Despite the name it has nothing in common with drying alcohols like ethanol or isopropyl alcohol – it is a waxy solid, not a volatile solvent.
It works as an emollient, a thickener and an emulsifier, holding oil and water together so a cream stays a cream. It is one of the most common ingredients in moisturisers, conditioners and cleansing balms.
What skin concerns does cetearyl alcohol treat?
It softens and smooths the skin and helps reduce water loss, contributing to the barrier-supporting effect of the moisturiser it sits in. It gives rich creams their cushioned texture without a greasy finish.
It is generally very well tolerated, and safe for dry and sensitive skin. The two caveats: it is mildly comedogenic, so very acne-prone skin may find heavy creams built on it congesting, and contact dermatitis from cetostearyl alcohol is a recognised, if uncommon, reaction.
What ingredients are best paired with cetearyl alcohol?
It is a structural ingredient, so it appears alongside almost everything – glycerin and hyaluronic acid for hydration, ceramides and shea butter for barrier repair, and actives it helps deliver evenly.
If you have persistent unexplained reactions to moisturisers, fatty alcohols are worth raising with a dermatologist for patch testing. For most people, it is simply what makes a good cream feel good. Take our Skin Quiz.
What is adult acne?
Adult acne is acne that persists past the teenage years or appears for the first time in your twenties, thirties or later. It affects a substantial share of adults, and disproportionately women.
It tends to look different from teenage acne: fewer widespread blackheads, more deep tender lesions along the jawline, chin and neck, often on skin that is simultaneously dry, sensitive or already showing early signs of ageing.
What causes adult acne?
Hormonal fluctuation is the leading driver – menstrual cycles, coming off or starting contraception, pregnancy, perimenopause and conditions such as PCOS all shift androgen activity and sebum output.
Stress and cortisol, sleep debt, high-glycaemic diets, comedogenic makeup and skincare, friction, and certain medications compound it. Adult skin also heals more slowly, so marks linger longer than they did at nineteen.
What ingredients are best for adult acne?
The challenge is treating acne without wrecking a barrier that is also ageing. Retinoids do double duty here, clearing follicles and stimulating collagen at the same time.
Azelaic acid is excellent for adult skin because it handles lesions, redness and post-acne marks together. Add salicylic acid used sparingly, niacinamide to regulate oil and calm inflammation, and ceramides plus hyaluronic acid to keep hydration up. Skip harsh benzoyl peroxide concentrations and scrubs. Take our Skin Quiz.
