Ingredient review
Octahydro-Tetramethyl-Methano-Cyclopentacyclopropabenzene-4-Methanol
INCI: OCTAHYDRO-TETRAMETHYL-METHANO-CYCLOPENTACYCLOPROPABENZENE-4-METHANOL
A synthetic fragrance ingredient that adds a warm, woody scent but offers no skincare benefit and may cause sensitivity in some people.
In plain English
This is a man-made chemical used to give products a pleasant woody or amber-like smell. It doesn't moisturize, treat, or improve your skin in any way—it's purely for fragrance. While generally considered safe in small amounts, it can still be a potential irritant for those with sensitive skin or fragrance allergies.
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
Octahydro-Tetramethyl-Methano-Cyclopentacyclopropabenzene-4-Methanol 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 Octahydro-Tetramethyl-Methano-Cyclopentacyclopropabenzene-4-Methanol.
- 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 sesquiterpene family, created in a lab to mimic natural woody or amber scents. It is not derived from plants or natural sources.
How it works
It evaporates from the skin's surface, releasing scent molecules that are detected by the nose. In a cosmetic formula, it simply adds fragrance and has no active effect on skin structure or function.
Pros
Pleasant scent
Adds a warm, woody, amber-like fragrance that many people find appealing and long-lasting.
Low irritation for most
At typical low concentrations, it rarely causes irritation in people without fragrance sensitivities.
Cons and cautions
No skin benefit
This ingredient does nothing for your skin's health, hydration, or appearance—it's purely for scent.
Potential allergen
Like many synthetic fragrances, it can trigger allergic reactions or irritation in people with sensitive skin or fragrance allergies.
Best for
- People who enjoy woody, warm fragrances in their products
- Those without fragrance sensitivities
Use caution if
- Anyone with known fragrance allergies or very sensitive, reactive skin
Usage tips
Safety summary
Generally recognized as safe for most people at low concentrations used in cosmetics. However, like all fragrance ingredients, it can cause allergic contact dermatitis in susceptible individuals.
Research notes
Limited peer-reviewed studies specifically on this compound. Safety assessments rely on general fragrance ingredient evaluations, which indicate low acute toxicity and low skin irritation potential at typical use levels.
Common label clues
- Typical concentration
- Typically less than 1% in leave-on products
- Regulatory status
- Approved for use in cosmetics in the EU, US, and many other countries, subject to concentration limits and labeling requirements for known allergens.
- Common uses
- Perfumes, Fragranced skincare, Body lotions, Hair products
- Environmental note
- As a synthetic compound, its production may involve petrochemical derivatives. Its environmental persistence is not well documented.
Good to know
- This ingredient is often listed near the end of an INCI list, indicating a low concentration.
- Fragrance ingredients are not required to be individually listed on labels in many regions, so this specific name may not always appear.
Common questions
What is Octahydro-Tetramethyl-Methano-Cyclopentacyclopropabenzene-4-Methanol in beauty products?
This is a man-made chemical used to give products a pleasant woody or amber-like smell. It doesn't moisturize, treat, or improve your skin in any way—it's purely for fragrance. While generally considered safe in small amounts, it can still be a potential irritant for those with sensitive skin or fragrance allergies.
What does Octahydro-Tetramethyl-Methano-Cyclopentacyclopropabenzene-4-Methanol do in a beauty product?
It evaporates from the skin's surface, releasing scent molecules that are detected by the nose. In a cosmetic formula, it simply adds fragrance and has no active effect on skin structure or function.
Is Octahydro-Tetramethyl-Methano-Cyclopentacyclopropabenzene-4-Methanol safe for most people?
Generally recognized as safe for most people at low concentrations used in cosmetics. However, like all fragrance ingredients, it can cause allergic contact dermatitis in susceptible individuals.
Who should be careful with Octahydro-Tetramethyl-Methano-Cyclopentacyclopropabenzene-4-Methanol?
Anyone with known fragrance allergies or very sensitive, reactive skin
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.