Ingredient review
Shikimoyl Nonapeptide-11
INCI: Shikimoyl Nonapeptide-11
A synthetic peptide that aims to calm skin reactivity and reduce the look of redness, but clinical evidence is still limited.
In plain English
Shikimoyl Nonapeptide-11 is a lab-made peptide (a short chain of amino acids) designed to mimic a natural plant compound from the shikimic acid pathway. In skincare, it is intended to help calm irritated skin and reduce visible redness by interacting with skin cells that control inflammation. Think of it as a gentle signal that tells your skin to settle down, though it is not a cure for any skin condition.
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
Shikimoyl Nonapeptide-11 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 Shikimoyl Nonapeptide-11.
- 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
Shikimoyl Nonapeptide-11 is a synthetic peptide created by combining shikimic acid (a compound found in plants like star anise) with a chain of nine amino acids (a nonapeptide). It is produced in a laboratory and belongs to a newer class of 'signal peptides' designed to influence skin cell behavior.
How it works
This peptide is thought to work by binding to specific receptors on skin cells that are involved in the inflammatory response. By doing so, it may help reduce the release of pro-inflammatory signals, leading to less visible redness, stinging, and sensitivity. It does not block UV rays or physically protect the skin barrier, but rather works at a cellular signaling level to promote a calmer skin state.
Pros
Targeted calming action
Designed specifically to address visible skin reactivity and redness, rather than just general moisturizing.
Low irritation potential
Generally well-tolerated, making it suitable for sensitive skin types that may react to stronger actives.
Cons and cautions
Limited research backing
The ingredient is relatively new, and independent clinical studies are sparse, so its efficacy is not as well-established as some traditional soothing agents.
Premium price point
Products containing this peptide are often positioned as high-end, which may not fit every budget.
Best for
- People with easily reddened or reactive skin looking for a gentle calming ingredient
- Those who want to incorporate a peptide with a targeted soothing function into their routine
Use caution if
- Anyone with a known allergy to any component of the peptide (rare, but patch test first)
Usage tips
Safety summary
Shikimoyl Nonapeptide-11 is considered safe for topical cosmetic use based on available safety data and its low irritation profile. However, long-term safety data and large-scale human studies are limited. As with any new ingredient, patch testing is recommended, especially for those with very sensitive skin.
Research notes
Research on Shikimoyl Nonapeptide-11 is in early stages. Most available information comes from manufacturer studies and ingredient supplier data. Independent peer-reviewed studies are scarce, so the evidence for its soothing benefits is considered emerging rather than strong.
Common label clues
- Typical concentration
- Typically used at 0.5–2% in leave-on formulations
- Regulatory status
- Generally recognized as safe for cosmetic use in the EU, US, and other major markets when used at recommended concentrations. Not classified as a drug ingredient.
- Common uses
- Serums, Moisturizers, Calming treatments
- Environmental note
- As a synthetic peptide, its environmental impact depends on the manufacturing process. It is not known to be bioaccumulative or toxic to aquatic life at typical cosmetic use levels.
Good to know
- Shikimic acid is a natural compound found in plants like star anise and is also a precursor in the synthesis of the antiviral drug oseltamivir (Tamiflu).
- This peptide is often found in serums marketed for redness-prone or sensitive skin.
Common questions
What is Shikimoyl Nonapeptide-11 in beauty products?
Shikimoyl Nonapeptide-11 is a lab-made peptide (a short chain of amino acids) designed to mimic a natural plant compound from the shikimic acid pathway. In skincare, it is intended to help calm irritated skin and reduce visible redness by interacting with skin cells that control inflammation. Think of it as a gentle signal that tells your skin to settle down, though it is not a cure for any skin condition.
What does Shikimoyl Nonapeptide-11 do in a beauty product?
This peptide is thought to work by binding to specific receptors on skin cells that are involved in the inflammatory response. By doing so, it may help reduce the release of pro-inflammatory signals, leading to less visible redness, stinging, and sensitivity. It does not block UV rays or physically protect the skin barrier, but rather works at a cellular signaling level to promote a calmer skin state.
Is Shikimoyl Nonapeptide-11 safe for most people?
Shikimoyl Nonapeptide-11 is considered safe for topical cosmetic use based on available safety data and its low irritation profile. However, long-term safety data and large-scale human studies are limited. As with any new ingredient, patch testing is recommended, especially for those with very sensitive skin.
Who should be careful with Shikimoyl Nonapeptide-11?
Anyone with a known allergy to any component of the peptide (rare, but patch test first)
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.