What Is Choleth-10?
Choleth-10 is an ethoxylated form of cholesterol created by attaching an average of ten units of ethylene oxide to the cholesterol molecule. The base cholesterol may come from animal-derived sources such as wool grease, or from plant sterols that have been chemically converted to match the same structure. By adding ethylene oxide, chemists transform naturally oily cholesterol into a water-friendly ingredient that can mix oil and water with ease.
The path to using Choleth-10 in cosmetics began in the mid-20th century when formulators looked for gentler alternatives to harsh soap surfactants. Ethoxylated cholesterol showed promise because it could clean without stripping skin lipids. Over time its ability to stabilize oil-in-water mixtures led to wider use across skin and hair products.
Manufacturing starts with purified cholesterol, which is placed in a controlled reactor with ethylene oxide gas. Under heat and pressure the gas adds to the cholesterol molecule, one unit at a time, until roughly ten units attach. The finished liquid or waxy paste is then filtered and standardized for cosmetic use.
You will most often spot Choleth-10 in facial cleansers, micellar waters, makeup removers, shampoos, bath gels, lotions, creams, sheet masks, sunscreen emulsions and lightweight treatment serums where it helps keep the formula stable and pleasant to use.
Choleth-10’s Cosmetic Benefits/Uses
In everyday products Choleth-10 plays two key roles that make formulas more effective and enjoyable.
- Cleansing: As a mild surfactant it loosens dirt, oil and leftover makeup so they rinse away easily with water. This helps create gentle facial washes and shampoos that leave skin and hair feeling clean yet comfortable.
- Emulsifying: Its structure has both oil-loving and water-loving parts, allowing it to bind the two into a smooth stable mixture. This keeps creams, lotions and sunscreens from separating, giving them a uniform texture and consistent performance throughout their shelf life.
Who Can Use Choleth-10
Because Choleth-10 is both mild and non-occlusive it suits most skin types including oily, combination, normal and dry. Sensitive skin generally tolerates it as well since it has a low irritation profile however anyone with a history of reacting to ethoxylated ingredients should remain cautious. Extremely compromised or highly inflamed skin may prefer formulas with fewer surfactants because even gentle cleansing agents can feel drying in that context.
Vegans and vegetarians need to check sourcing details. Choleth-10 starts with cholesterol that is often harvested from wool grease making it an animal-derived ingredient. Some manufacturers use plant sterols converted to cholesterol but labels rarely specify. Those following a strict animal-free routine should look for a clear vegan certification or contact the brand for confirmation.
No data link Choleth-10 to problems in pregnancy or while breastfeeding. It is used only on the outer skin surface and absorption is minimal. This paragraph is not medical advice pregnant or nursing individuals should share their full skincare routine with a healthcare professional to be safe.
The ingredient does not increase photosensitivity so it will not make skin more prone to sunburn. Standard daily sun protection is, of course, still important.
Potential Side Effects/Adverse Reactions
Individual responses vary. The points below list potential side effects but they are uncommon when products are formulated correctly.
- Mild skin irritation
- Transient dryness or tightness after cleansing
- Contact dermatitis in those allergic to ethoxylated compounds
- Eye stinging if a cleanser containing Choleth-10 is not thoroughly rinsed
If any discomfort redness or itching develops discontinue use and consult a healthcare professional.
Comedogenic Rating
Rating: 1/5 – Choleth-10 is derived from cholesterol yet its ethoxylated structure makes it water-soluble and non-occlusive, so it is unlikely to clog pores. It does not form a heavy film on skin and is used at low concentrations, which keeps its comedogenic potential minimal.
Suitable for acne-prone or breakout-prone skin, though overall formula composition still matters.
No notable interactions with common acne medications or treatments have been reported.
Summary
Choleth-10 acts as a gentle cleanser and reliable emulsifier. Its split personality – one end loves oil, the other loves water – lets it lift away grime while holding oil and water together in a smooth stable blend.
It is a workhorse rather than a headline ingredient, seen in a steady trickle of cleansers, lotions, sunscreens and hair products. Brands value its mildness and versatility even if it rarely gets called out on front labels.
Current safety data shows low irritation risk, minimal absorption and virtually no long-term concerns. As with any new product a quick patch test is wise to rule out personal sensitivities before full-face or full-body use.