Ingredient glossary
Behenyl Alcohol
On your shelf ✓What Behenyl Alcohol does for your skin, who it suits, and what to watch for.
INCI: Behenyl Alcohol · Also: Docosanol
In short: Behenyl Alcohol delivers softening and texture, suits most skin types, and the evidence behind it is strong.
- What it does
- Softening, texture
- Best for
- Most skin types
- Evidence
- Strong
- How long
- Straight away
The molecule
The Glow take
A comfort ingredient, and none the worse for it.
Behenyl Alcohol is here for feel and moisture, softening the skin and slowing water loss. More comfort than correction.
— Maya
What it does
- softening
- texture
strong evidenceCIR reviewed the long chain fatty alcohols including behenyl in 1988 and again in 2008 and found them safe as used, with no reproductive effects in animal studies at high doses. Secondary lists place its pore clogging risk around 1 to 2 of 5, but the primary test data behind those numbers is not traceable.
On a label: usually effective at 1-5%.
Who it's for, and who should skip it
Tends to suit
- dry
- normal
Approach with care
- rare allergy
- Clogs poresLow
- Irritation riskLow
How it fits each skin type
- DrySuits
- CombinationSuits
- OilySuits
- SensitiveSuits
Take extra care if any of these apply to you: rare allergy.
Where it fits in your routine
This one works on contact — there is nothing to wait for.
What that covers, and what it does not
Measured on: surface smoothing from the deposited fatty-alcohol film, the softening/texture job the base names.
A C22 fatty alcohol deposits as a waxy, semi-occlusive layer that physically fills between corneocytes and cuts friction as the product is spread, so the softening is present on application rather than developing over visits. This is a physics call and not a measured one: the CIR long-chain aliphatic alcohols review behind this row is a safety document, and no corneometer or TEWL study isolates behenyl alcohol at any concentration. If you instead ask about the base's barrier_support_score of 3 as a measured barrier-repair endpoint, the answer for that outcome is unknown.
Mechanism. CIR review of long-chain aliphatic alcohols (1988, reaffirmed 2008) cited on the base row is safety only; no efficacy trial identified.
Plays well with
- fatty acids
- emulsifiers
Behenyl Alcohol, answered
Is Behenyl Alcohol safe during pregnancy?
Yes. Behenyl Alcohol is considered safe to use during pregnancy and breastfeeding. As with anything, if you are unsure it is worth a quick word with your doctor or midwife.
Who should avoid Behenyl Alcohol?
Approach Behenyl Alcohol with care if any of these apply to you: rare allergy.
What concentration of Behenyl Alcohol actually works?
Behenyl Alcohol tends to do its job in the 1 to 5% range. Much lower and it is likely underdosed.
This, for every label you own
One ingredient is easy. A full label is where it gets confusing. The Ingredient Decoder reads any product and tells you the honest truth, ingredient by ingredient.
Sources & how we reviewed this
- CIR safety review Long-chain aliphatic alcohols 1988 reaffirmed 2008summary page only, the document itself was not read