Ingredient review
Cinnamoyl Tryptamine
INCI: Cinnamoyl Tryptamine
Cinnamoyl Tryptamine is a synthetic peptide that may help improve skin firmness and reduce wrinkles, but research is still early and it's less common than better-studied peptides.
In plain English
Cinnamoyl Tryptamine is a lab-made ingredient that mimics a natural signaling molecule in your skin. It's designed to tell skin cells to produce more collagen and elastin, which are the proteins that keep skin plump and firm. Think of it as a gentle messenger that encourages your skin to act younger. Because it's a newer ingredient, there isn't as much research on it compared to classic peptides like Matrixyl, but early signs suggest it can help with fine lines and firmness without causing irritation.
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
Cinnamoyl Tryptamine 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 Cinnamoyl Tryptamine.
- 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
Cinnamoyl Tryptamine is a synthetic dipeptide, meaning it's a small chain of two amino acids (cinnamic acid and tryptamine) linked together. It's designed to be stable in skincare formulas and to penetrate the skin's outer layer to reach living cells.
How it works
Once applied, Cinnamoyl Tryptamine is thought to bind to specific receptors on skin cells, triggering a cascade of signals that increase the production of collagen and elastin. This helps reinforce the skin's structural support, leading to a firmer, smoother appearance over time. It may also have mild antioxidant properties.
Pros
Gentle on skin
Cinnamoyl Tryptamine has a low irritation risk, making it suitable for sensitive skin types that react to stronger anti-aging ingredients.
Supports collagen production
It works by signaling skin cells to produce more collagen, which can help improve firmness and reduce fine lines over time.
Cons and cautions
Limited research
Compared to well-studied peptides like Matrixyl, there are fewer peer-reviewed studies and clinical trials on Cinnamoyl Tryptamine, so its effectiveness is less certain.
Subtle results
As a peptide, its effects are gradual and subtle. Users expecting dramatic wrinkle reduction may be disappointed without consistent, long-term use.
Best for
- People looking for a gentle anti-aging ingredient to add to their routine
- Those with sensitive skin who cannot tolerate stronger actives like retinol
Use caution if
- Anyone seeking immediate or dramatic results (peptides work gradually)
- Those with very specific skin concerns that require clinically proven ingredients
Usage tips
Safety summary
Cinnamoyl Tryptamine is considered safe for topical use in cosmetics at typical concentrations. It has low irritation and comedogenic potential. However, due to limited long-term safety data, it is best used as part of a balanced routine with other well-studied ingredients.
Research notes
Research on Cinnamoyl Tryptamine is emerging. In vitro studies suggest it can stimulate collagen synthesis, but there are few published human clinical trials. Most evidence comes from ingredient supplier data and small-scale studies. It is not as robustly supported as established peptides like Matrixyl or copper peptides.
Common label clues
- Typical concentration
- Typically used at 0.5% to 2% in leave-on formulations
- Regulatory status
- Cinnamoyl Tryptamine is not specifically regulated by the FDA as a drug; it is considered a cosmetic ingredient and must be safe for its intended use. It is not listed on any restricted substances lists in major markets (EU, US, Japan).
- Common uses
- Anti-aging serums, Firming creams
- Environmental note
- As a synthetic peptide, its environmental impact is minimal compared to some natural extracts, but manufacturing processes vary by supplier. No specific biodegradability data is publicly available.
Good to know
- Cinnamoyl Tryptamine is often found in anti-aging serums alongside other peptides and antioxidants.
- It is not related to cinnamon or tryptophan supplements; it's a purely cosmetic synthetic ingredient.
Common questions
What is Cinnamoyl Tryptamine in beauty products?
Cinnamoyl Tryptamine is a lab-made ingredient that mimics a natural signaling molecule in your skin. It's designed to tell skin cells to produce more collagen and elastin, which are the proteins that keep skin plump and firm. Think of it as a gentle messenger that encourages your skin to act younger. Because it's a newer ingredient, there isn't as much research on it compared to classic peptides like Matrixyl, but early signs suggest it can help with fine lines and firmness without causing irritation.
What does Cinnamoyl Tryptamine do in a beauty product?
Once applied, Cinnamoyl Tryptamine is thought to bind to specific receptors on skin cells, triggering a cascade of signals that increase the production of collagen and elastin. This helps reinforce the skin's structural support, leading to a firmer, smoother appearance over time. It may also have mild antioxidant properties.
Is Cinnamoyl Tryptamine safe for most people?
Cinnamoyl Tryptamine is considered safe for topical use in cosmetics at typical concentrations. It has low irritation and comedogenic potential. However, due to limited long-term safety data, it is best used as part of a balanced routine with other well-studied ingredients.
Who should be careful with Cinnamoyl Tryptamine?
Anyone seeking immediate or dramatic results (peptides work gradually) Those with very specific skin concerns that require clinically proven ingredients
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.