Ingredient review
Dihydrocholeth-20
INCI: DIHYDROCHOLETH-20
A gentle, cholesterol-derived ingredient that helps soften skin and improve product feel without clogging pores.
In plain English
Dihydrocholeth-20 is a lab-made ingredient that comes from cholesterol, a natural fat found in your skin. It helps moisturizers and cleansers feel smooth and silky, and it can also help other ingredients mix with water. Because it's similar to your skin's own oils, it's usually very gentle and unlikely to cause breakouts.
Review score
Safety, usefulness, and evidence
Potentially useful with some tradeoffs
The evidence base is useful, but some claims depend heavily on the formula.
Risk flags are low for most users, though the finished product can still irritate.
- Source
- synthetic
- Evidence
- moderate
- Irritation
- low
- Clogging risk
- low
Quick decision guide
Useful, but context matters
Dihydrocholeth-20 is generally a lower-concern ingredient when the full formula suits your skin.
Plain-English read
Treat this as a practical screening step before you compare products that contain this ingredient.
- Step 1Start with the score, then check the irritation and clogging risk before judging Dihydrocholeth-20.
- Step 2Use the "Best for" and "Use caution if" sections to match the ingredient to your skin, not just to a marketing claim.
- Step 3If a product stings, breaks you out, or worsens irritation, judge the finished formula and stop using it even if the ingredient scores well.
Score terms in plain English
Irritation risk
lowLess likely to sting, burn, or bother most users, though sensitive skin can still react.
Clogging risk
lowLess likely to feel heavy or contribute to clogged pores for most skin types.
Evidence level
moderateThere is useful support, but formula details and claim strength still matter.
What it is
Dihydrocholeth-20 is a synthetic ethoxylated derivative of dihydrocholesterol, a hydrogenated form of cholesterol. It acts as a non-ionic surfactant and emollient, meaning it helps oil and water blend while also softening the skin.
How it works
In a cosmetic product, Dihydrocholeth-20 works by reducing surface tension between oil and water, creating a stable, smooth mixture. It also deposits a thin, non-greasy film on the skin that locks in moisture and leaves a soft, velvety feel.
Pros
Gentle on skin
Dihydrocholeth-20 has a low irritation risk and is non-comedogenic, making it suitable for sensitive and acne-prone skin types.
Improves product feel
It gives creams and lotions a silky, velvety texture that spreads easily and doesn't leave a heavy residue.
Cons and cautions
Synthetic origin
It is lab-made, which may be a drawback for consumers who prefer naturally derived ingredients.
Limited standalone benefits
While it helps moisturizers work better, it doesn't provide intense hydration on its own like some natural oils or butters.
Best for
- People with normal to dry skin looking for a lightweight moisturizer
- Anyone who wants a smooth, non-sticky product feel
Use caution if
- Those seeking a purely natural or plant-based ingredient list
Usage tips
Safety summary
Dihydrocholeth-20 is considered safe for cosmetic use with low irritation and comedogenic potential. It is well-tolerated by most skin types.
Research notes
Safety assessments by the Cosmetic Ingredient Review (CIR) have concluded that ethoxylated cholesterol derivatives like Dihydrocholeth-20 are safe in current cosmetic practices. No significant toxicity or sensitization has been reported.
Common label clues
- Typical concentration
- 0.5% to 5%
- Regulatory status
- Approved for use in cosmetics in the US, EU, and many other regions. The Cosmetic Ingredient Review (CIR) panel has deemed it safe as used.
- Common uses
- Moisturizers, Cleansers, Serums, Hair conditioners
- Environmental note
- As a synthetic ethoxylate, its biodegradability may be limited, but it is not known to bioaccumulate significantly.
Good to know
- Dihydrocholeth-20 is often used in formulas that need a lightweight, non-comedogenic emollient.
- It is considered safe by the Cosmetic Ingredient Review (CIR) panel at typical use levels.
Common questions
What is Dihydrocholeth-20 in beauty products?
Dihydrocholeth-20 is a lab-made ingredient that comes from cholesterol, a natural fat found in your skin. It helps moisturizers and cleansers feel smooth and silky, and it can also help other ingredients mix with water. Because it's similar to your skin's own oils, it's usually very gentle and unlikely to cause breakouts.
What does Dihydrocholeth-20 do in a beauty product?
In a cosmetic product, Dihydrocholeth-20 works by reducing surface tension between oil and water, creating a stable, smooth mixture. It also deposits a thin, non-greasy film on the skin that locks in moisture and leaves a soft, velvety feel.
Is Dihydrocholeth-20 safe for most people?
Dihydrocholeth-20 is considered safe for cosmetic use with low irritation and comedogenic potential. It is well-tolerated by most skin types.
Who should be careful with Dihydrocholeth-20?
Those seeking a purely natural or plant-based ingredient list
Research sources
Ingredient reviews are educational and are not medical advice. Patch test new products and ask a licensed clinician about persistent irritation, allergies, pregnancy-specific questions, or diagnosed skin conditions.