Ingredient review
Bis(C13-15 Alkoxy) PG-Amodimethicone
INCI: BIS(C13-15 ALKOXY) PG-AMODIMETHICONE
A gentle silicone derivative that smooths hair and skin without the heavy feel of traditional silicones.
In plain English
This is a special type of silicone that has been chemically modified to be more water-friendly and less likely to build up on hair or skin. It forms a thin, flexible film that makes hair feel silky and smooth, and helps skin feel soft without clogging pores. Unlike some older silicones, it's designed to rinse out more easily and work well in both rinse-off and leave-on products.
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(C13-15 Alkoxy) PG-Amodimethicone 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(C13-15 Alkoxy) PG-Amodimethicone.
- 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 silicone polymer with added alkoxy (ether) and propylene glycol (PG) groups, making it more water-dispersible and less occlusive than standard amodimethicone.
How it works
It deposits a thin, positively charged film onto hair and skin, which helps smooth the cuticle, reduce frizz, and improve slip. The modified structure allows it to be more easily removed with mild cleansers, reducing the risk of buildup.
Pros
Lightweight conditioning
Provides noticeable smoothness and slip without the heavy, greasy feel of some silicones, making it suitable for fine to normal hair.
Easier removal
The modified structure allows it to be washed out with milder surfactants, reducing the risk of buildup that can dull hair over time.
Cons and cautions
Not fully biodegradable
As a synthetic silicone, it does not break down easily in the environment, which may be a concern for eco-conscious users.
Potential buildup with heavy use
While less prone to buildup than some silicones, frequent use without proper cleansing can still lead to accumulation on hair.
Best for
- People with dry, frizzy, or damaged hair seeking smoothness
- Those who want a lightweight silicone that won't weigh hair down
Use caution if
- Those following a strictly silicone-free or low-waste routine
- Individuals with very fine or limp hair who prefer zero film-forming ingredients
Usage tips
Safety summary
Generally recognized as safe for topical use at typical concentrations. Low irritation and comedogenic potential. No significant safety concerns reported in cosmetic use.
Research notes
Limited independent peer-reviewed studies specifically on this ingredient. Safety is inferred from the broader class of amodimethicone derivatives, which have a long history of safe use in cosmetics.
Common label clues
- Typical concentration
- 0.5% to 5%
- Regulatory status
- Approved for use in cosmetics in the US, EU, and most major markets. No specific restrictions beyond general cosmetic safety requirements.
- Common uses
- Hair conditioners, Leave-in treatments, Styling products, Shampoos, Skin lotions
- Environmental note
- Silicones, including this modified version, are not readily biodegradable and can accumulate in aquatic environments. Some manufacturers are working on more eco-friendly alternatives.
Good to know
- This ingredient is often found in 'silicone-free' marketed products because it is a modified silicone that behaves differently from classic dimethicone.
- It is considered safer for color-treated hair as it does not cause significant fading.
Common questions
What is Bis(C13-15 Alkoxy) PG-Amodimethicone in beauty products?
This is a special type of silicone that has been chemically modified to be more water-friendly and less likely to build up on hair or skin. It forms a thin, flexible film that makes hair feel silky and smooth, and helps skin feel soft without clogging pores. Unlike some older silicones, it's designed to rinse out more easily and work well in both rinse-off and leave-on products.
What does Bis(C13-15 Alkoxy) PG-Amodimethicone do in a beauty product?
It deposits a thin, positively charged film onto hair and skin, which helps smooth the cuticle, reduce frizz, and improve slip. The modified structure allows it to be more easily removed with mild cleansers, reducing the risk of buildup.
Is Bis(C13-15 Alkoxy) PG-Amodimethicone safe for most people?
Generally recognized as safe for topical use at typical concentrations. Low irritation and comedogenic potential. No significant safety concerns reported in cosmetic use.
Who should be careful with Bis(C13-15 Alkoxy) PG-Amodimethicone?
Those following a strictly silicone-free or low-waste routine Individuals with very fine or limp hair who prefer zero film-forming 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.