Ingredient review
Bis-Methoxypropylamido Isodocosane
INCI: BIS-METHOXYPROPYLAMIDO ISODOCOSANE
A gentle synthetic ingredient that helps products feel silky and stay put without clogging pores or causing irritation.
In plain English
This is a man-made ingredient that acts like a lightweight oil and a gentle glue. It spreads easily on skin, leaving a smooth, non-greasy feel, and helps other ingredients stay in place longer, especially in sunscreens and long-wear makeup. It is considered very safe and unlikely to cause breakouts or irritation.
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
Bis-Methoxypropylamido Isodocosane 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 Bis-Methoxypropylamido Isodocosane.
- 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 compound derived from fatty acids and amino alcohol, designed to function as an emollient (softener) and film former (a thin layer that holds ingredients together).
How it works
It sits on the skin's surface, filling in tiny gaps between skin cells to create a smooth, soft feel. As a film former, it dries down into an invisible, flexible layer that helps water-resistant products like sunscreen stay effective longer and prevents makeup from smudging.
Pros
Silky, lightweight feel
It spreads easily and leaves skin feeling smooth without any greasy residue, making it ideal for daytime moisturizers and primers.
Boosts water resistance
In sunscreens and long-wear makeup, it helps the product stay effective longer, even when you sweat or get wet.
Cons and cautions
Synthetic origin
It is not a natural ingredient, which may be a concern if you prefer plant-based or naturally derived skincare.
Limited long-term data
While short-term safety is well-established, there is less research on its effects after years of daily use compared to traditional oils.
Best for
- Anyone looking for a lightweight, non-greasy moisturizer or sunscreen
- People with oily or combination skin who want a matte finish
Use caution if
- Those who strictly avoid all synthetic ingredients in their routine
Usage tips
Safety summary
Bis-Methoxypropylamido Isodocosane is considered safe for use in cosmetics at typical concentrations. It has a low irritation and comedogenic risk, making it suitable for most skin types, including sensitive and acne-prone skin.
Research notes
Safety assessments by cosmetic ingredient review panels have concluded it is safe as used. Most evidence comes from manufacturer data and regulatory reviews, with limited independent clinical studies.
Common label clues
- Typical concentration
- Typically 0.5% to 5%
- Regulatory status
- Approved for use in cosmetics globally, including by the U.S. FDA and the European Commission, with no known restrictions at typical use levels.
- Common uses
- Moisturizers, Sunscreens, Foundations, Lip products
- Environmental note
- As a synthetic compound, it is not biodegradable in the same way as natural oils, but it is used in small amounts and is not considered a major environmental concern.
Good to know
- It is often used alongside silicones to improve texture without the heavy feel.
- Despite its long chemical name, it is considered very gentle and is commonly found in products for sensitive skin.
Common questions
What is Bis-Methoxypropylamido Isodocosane in beauty products?
This is a man-made ingredient that acts like a lightweight oil and a gentle glue. It spreads easily on skin, leaving a smooth, non-greasy feel, and helps other ingredients stay in place longer, especially in sunscreens and long-wear makeup. It is considered very safe and unlikely to cause breakouts or irritation.
What does Bis-Methoxypropylamido Isodocosane do in a beauty product?
It sits on the skin's surface, filling in tiny gaps between skin cells to create a smooth, soft feel. As a film former, it dries down into an invisible, flexible layer that helps water-resistant products like sunscreen stay effective longer and prevents makeup from smudging.
Is Bis-Methoxypropylamido Isodocosane safe for most people?
Bis-Methoxypropylamido Isodocosane is considered safe for use in cosmetics at typical concentrations. It has a low irritation and comedogenic risk, making it suitable for most skin types, including sensitive and acne-prone skin.
Who should be careful with Bis-Methoxypropylamido Isodocosane?
Those who strictly avoid all synthetic ingredients in their routine
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.