Ingredient review
Caffeoyl Methoxytryptamine
INCI: CAFFEOYL METHOXYTRYPTAMINE
A lab-made antioxidant that may help calm skin and fight free radicals, but research is still early.
In plain English
Caffeoyl methoxytryptamine is a man-made molecule that combines parts of two natural compounds: caffeic acid (found in coffee and plants) and methoxytryptamine (related to melatonin). In skincare, it's added to help protect skin from damage caused by pollution and UV rays, and to reduce redness or irritation. Think of it as a gentle shield that also soothes—like a calming antioxidant.
Review score
Safety, usefulness, and evidence
Potentially useful with some tradeoffs
The evidence base is still emerging, so marketing claims deserve extra caution.
Risk flags are low for most users, though the finished product can still irritate.
- Source
- synthetic
- Evidence
- emerging
- Irritation
- low
- Clogging risk
- low
Quick decision guide
Useful, but context matters
Caffeoyl Methoxytryptamine 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 Caffeoyl Methoxytryptamine.
- 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
emergingThe ingredient may be promising, but claims should be treated more cautiously.
What it is
A synthetic compound designed to mimic the antioxidant and anti-inflammatory properties of natural plant phenolics and indoleamines.
How it works
It works by neutralizing free radicals (unstable molecules that damage skin cells) and by calming inflammatory pathways in the skin, potentially reducing redness and sensitivity.
Pros
Gentle antioxidant
Provides free radical protection without the irritation some stronger antioxidants can cause, making it suitable for sensitive skin.
Soothing potential
May help calm redness and inflammation, offering dual benefits in one ingredient.
Cons and cautions
Limited research
Most evidence comes from lab studies, not large human trials, so its real-world benefits are less certain.
Not a powerhouse
Compared to well-studied antioxidants like vitamin C or ferulic acid, its efficacy and stability are less established.
Best for
- People with sensitive or reactive skin looking for gentle antioxidant protection
- Those concerned about pollution and UV-related skin aging
Use caution if
- Anyone seeking a well-studied, proven antioxidant with decades of research
Usage tips
Safety summary
Generally considered safe for topical use at low concentrations. No significant irritation or allergy risks have been reported in available studies, but long-term safety data is limited.
Research notes
Early research shows antioxidant and anti-inflammatory activity in cell and animal models. Human studies are scarce, so evidence is emerging rather than strong.
Common label clues
- Typical concentration
- Typically used at 0.1% to 1% in leave-on products
- Regulatory status
- Approved for cosmetic use in most regions including the EU and US, with no specific restrictions at typical use levels.
- Common uses
- Serums, Moisturizers, Eye creams
- Environmental note
- As a synthetic ingredient, it is produced in a lab, which may have a lower environmental footprint than harvesting plant sources, but specific data is not publicly available.
Good to know
- This ingredient is often found in products targeting redness or sensitivity, not just anti-aging.
- It is not the same as melatonin or caffeine, despite the similar chemical name.
Common questions
What is Caffeoyl Methoxytryptamine in beauty products?
Caffeoyl methoxytryptamine is a man-made molecule that combines parts of two natural compounds: caffeic acid (found in coffee and plants) and methoxytryptamine (related to melatonin). In skincare, it's added to help protect skin from damage caused by pollution and UV rays, and to reduce redness or irritation. Think of it as a gentle shield that also soothes—like a calming antioxidant.
What does Caffeoyl Methoxytryptamine do in a beauty product?
It works by neutralizing free radicals (unstable molecules that damage skin cells) and by calming inflammatory pathways in the skin, potentially reducing redness and sensitivity.
Is Caffeoyl Methoxytryptamine safe for most people?
Generally considered safe for topical use at low concentrations. No significant irritation or allergy risks have been reported in available studies, but long-term safety data is limited.
Who should be careful with Caffeoyl Methoxytryptamine?
Anyone seeking a well-studied, proven antioxidant with decades of research
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.