Ingredient review
Nylon-66
INCI: NYLON-66
Nylon-66 is a safe, non-irritating synthetic powder that improves the feel and wear of makeup, but it is not biodegradable.
In plain English
Nylon-66 is a type of plastic powder added to cosmetics to make them feel silky and smooth on the skin. It helps makeup glide on easily, absorb oil, and stay in place longer. Think of it as tiny, round beads that create a soft-focus effect and reduce shine without clogging pores.
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
Nylon-66 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 Nylon-66.
- 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
Nylon-66 is a synthetic polymer derived from petroleum, processed into fine, spherical particles. In cosmetics, it is used as a bulking agent, absorbent, and texture modifier.
How it works
The spherical shape of Nylon-66 particles allows them to roll over the skin, creating a silky, smooth application. They also absorb excess oil and scatter light, which helps blur fine lines and imperfections for a soft-focus finish.
Pros
Silky texture
Nylon-66 gives powders and foundations a luxurious, silky feel that glides on smoothly without caking.
Oil control
Its absorbent particles help reduce excess oil and shine, making it ideal for combination or oily skin types.
Cons and cautions
Not biodegradable
As a synthetic plastic, Nylon-66 does not break down easily in the environment, which may be a concern for eco-conscious users.
Petroleum-derived
It is made from non-renewable petroleum sources, which may not align with sustainable or natural beauty preferences.
Best for
- People who want a silky, smooth finish in powder makeup
- Those with oily skin looking for oil-absorbing products
Use caution if
- Individuals seeking fully biodegradable or natural cosmetics
Usage tips
Safety summary
Nylon-66 is considered safe for cosmetic use with low irritation and comedogenic potential. It is not absorbed through the skin and has no known toxicity at typical concentrations.
Research notes
Studies and safety reviews by the Cosmetic Ingredient Review (CIR) panel have concluded that Nylon-66 is safe for use in cosmetics. Research focuses on its physical properties rather than biological activity.
Common label clues
- Typical concentration
- Usually 1–10% in powder or color cosmetics
- Regulatory status
- Approved for use in cosmetics by the FDA and EU CosIng database. No known restrictions at typical concentrations.
- Common uses
- Foundations, Powders, Lipsticks, Eye shadows
- Environmental note
- Nylon-66 is not biodegradable and is derived from petroleum, which contributes to plastic pollution. Some brands are moving toward biodegradable alternatives.
Good to know
- Nylon-66 is considered non-comedogenic and generally safe for most skin types.
- It is different from microplastics used in scrubs; Nylon-66 particles are typically larger and used in powders.
Common questions
What is Nylon-66 in beauty products?
Nylon-66 is a type of plastic powder added to cosmetics to make them feel silky and smooth on the skin. It helps makeup glide on easily, absorb oil, and stay in place longer. Think of it as tiny, round beads that create a soft-focus effect and reduce shine without clogging pores.
What does Nylon-66 do in a beauty product?
The spherical shape of Nylon-66 particles allows them to roll over the skin, creating a silky, smooth application. They also absorb excess oil and scatter light, which helps blur fine lines and imperfections for a soft-focus finish.
Is Nylon-66 safe for most people?
Nylon-66 is considered safe for cosmetic use with low irritation and comedogenic potential. It is not absorbed through the skin and has no known toxicity at typical concentrations.
Who should be careful with Nylon-66?
Individuals seeking fully biodegradable or natural cosmetics
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.