Ingredient review
Hexahydro-Methanoindene-Butanol
INCI: HEXAHYDRO-METHANOINDENE-5-YLIDENE-2-BUTANOL
A synthetic scent ingredient that adds a woody, amber note but offers no skincare benefit and may be unnecessary for sensitive noses.
In plain English
This is a lab-made chemical that gives products a warm, woody, amber-like smell. It doesn't moisturize, treat, or improve your skin in any way—it's purely for fragrance. If you prefer unscented products or have sensitive skin, you might want to avoid it, as fragrance ingredients can sometimes cause irritation or allergic reactions.
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
Hexahydro-Methanoindene-Butanol 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 Hexahydro-Methanoindene-Butanol.
- 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
A synthetic organic compound from the indane family, created in a lab to mimic natural woody and amber scents. It is not derived from plants or animals.
How it works
It evaporates from the skin or hair, releasing molecules that interact with olfactory receptors in the nose to produce a perception of a warm, woody, amber-like fragrance. It has no active effect on the skin's structure or function.
Pros
Pleasant scent
Adds a warm, woody, amber-like fragrance that many find appealing and long-lasting.
Low irritation risk for most
At typical low concentrations, it is generally well-tolerated by people without fragrance sensitivities.
Cons and cautions
No skincare benefit
This ingredient exists only for scent—it does not hydrate, protect, or improve skin health in any way.
Potential allergen
Like many synthetic fragrances, it can cause contact dermatitis or allergic reactions in sensitive individuals, especially with repeated use.
Best for
- People who enjoy woody, amber fragrances in their products
- Those without fragrance sensitivities
Use caution if
- Individuals with sensitive skin or known fragrance allergies
- Anyone who prefers fragrance-free skincare
Usage tips
Safety summary
Generally recognized as safe for most people at low concentrations used in cosmetics. However, like all fragrance ingredients, it carries a small risk of skin sensitization and allergic reactions.
Research notes
Limited published research specifically on this compound. It is considered a standard fragrance ingredient with a history of safe use, but individual sensitivity varies.
Common label clues
- Typical concentration
- Typically used at very low levels, often less than 1%
- Regulatory status
- Approved for use in cosmetics in the EU, US, and many other regions, but subject to fragrance allergen labeling requirements in the EU.
- Common uses
- Perfumes, Fragranced lotions, Body washes, Hair products
- Environmental note
- As a synthetic compound, its environmental persistence and bioaccumulation potential are not well-studied. Natural fragrance alternatives may have a lower environmental footprint.
Good to know
- This ingredient is often listed near the end of an INCI list because it is used in very small amounts.
- Fragrance ingredients are not required to be individually disclosed on labels in many regions, so you may see it simply as 'fragrance' or 'parfum'.
Common questions
What is Hexahydro-Methanoindene-Butanol in beauty products?
This is a lab-made chemical that gives products a warm, woody, amber-like smell. It doesn't moisturize, treat, or improve your skin in any way—it's purely for fragrance. If you prefer unscented products or have sensitive skin, you might want to avoid it, as fragrance ingredients can sometimes cause irritation or allergic reactions.
What does Hexahydro-Methanoindene-Butanol do in a beauty product?
It evaporates from the skin or hair, releasing molecules that interact with olfactory receptors in the nose to produce a perception of a warm, woody, amber-like fragrance. It has no active effect on the skin's structure or function.
Is Hexahydro-Methanoindene-Butanol safe for most people?
Generally recognized as safe for most people at low concentrations used in cosmetics. However, like all fragrance ingredients, it carries a small risk of skin sensitization and allergic reactions.
Who should be careful with Hexahydro-Methanoindene-Butanol?
Individuals with sensitive skin or known fragrance allergies Anyone who prefers fragrance-free skincare
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.