Ingredient review
Chitosan Lauroyl Glycinate
INCI: Chitosan Lauroyl Glycinate
A gentle, film-forming ingredient that helps skin feel smooth and hydrated without clogging pores.
In plain English
Chitosan Lauroyl Glycinate is a modified version of chitosan, a natural substance from shellfish shells. It’s combined with lauric acid (from coconut) and glycine (an amino acid) to make it more water-friendly and gentle. In skincare, it forms a thin, flexible film on the skin that helps lock in moisture and gives a smooth, soft feel. It’s often used in serums and moisturizers for its hydrating and texture-improving benefits.
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
- semi synthetic
- Evidence
- moderate
- Irritation
- low
- Clogging risk
- low
Quick decision guide
Useful, but context matters
Chitosan Lauroyl Glycinate 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 Chitosan Lauroyl Glycinate.
- 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 semi-synthetic polymer derived from chitosan (from crustacean shells) that has been chemically modified with lauric acid and glycine to improve water solubility and skin compatibility.
How it works
When applied, it spreads into a thin, breathable film on the skin’s surface. This film reduces water loss (transepidermal water loss, or TEWL) and helps other ingredients stay on the skin longer. It also has a slight humectant effect, meaning it attracts water to the skin, and it can make the skin feel smoother and less sticky.
Pros
Gentle moisture lock
Creates a thin, breathable film that reduces water loss, making it ideal for dry or dehydrated skin without feeling heavy.
Smooth texture enhancer
Leaves skin feeling soft and smooth, which can improve the application of makeup or other skincare products.
Cons and cautions
Shellfish allergy concern
Since it’s derived from crustacean shells, people with shellfish allergies may want to avoid it or patch test first.
Potential tackiness at high levels
If used in high concentrations, it can leave a slightly sticky or tacky feel on the skin, which some users may find unpleasant.
Best for
- People with dry or dehydrated skin looking for extra moisture retention
- Those who want a smooth, non-greasy finish from their serums or moisturizers
Use caution if
- Individuals with known shellfish allergies (chitosan is derived from crustacean shells)
Usage tips
Safety summary
Chitosan Lauroyl Glycinate is considered safe for cosmetic use with very low irritation and comedogenic potential. The main caution is for individuals with shellfish allergies, as it is derived from crustacean shells. Patch testing is recommended for sensitive skin.
Research notes
Research on chitosan derivatives shows good film-forming and moisturizing properties with low toxicity. Specific studies on Chitosan Lauroyl Glycinate are limited, but the broader class of modified chitosans is well-documented for gentle skin conditioning.
Common label clues
- Typical concentration
- 0.1–2% in leave-on products
- Regulatory status
- Approved for use in cosmetics in the EU, US, and many other regions. No specific restrictions beyond general cosmetic safety requirements.
- Common uses
- Serums, Moisturizers, Masks, Leave-on treatments
- Environmental note
- Chitosan is derived from a renewable byproduct of the seafood industry, making it a more sustainable choice compared to some synthetic film formers.
Good to know
- Chitosan Lauroyl Glycinate is often used in ‘clean’ or ‘gentle’ skincare formulations because it is biodegradable and derived from natural sources.
- It is not the same as pure chitosan — the modification makes it much more water-soluble and less likely to cause irritation.
Common questions
What is Chitosan Lauroyl Glycinate in beauty products?
Chitosan Lauroyl Glycinate is a modified version of chitosan, a natural substance from shellfish shells. It’s combined with lauric acid (from coconut) and glycine (an amino acid) to make it more water-friendly and gentle. In skincare, it forms a thin, flexible film on the skin that helps lock in moisture and gives a smooth, soft feel. It’s often used in serums and moisturizers for its hydrating and texture-improving benefits.
What does Chitosan Lauroyl Glycinate do in a beauty product?
When applied, it spreads into a thin, breathable film on the skin’s surface. This film reduces water loss (transepidermal water loss, or TEWL) and helps other ingredients stay on the skin longer. It also has a slight humectant effect, meaning it attracts water to the skin, and it can make the skin feel smoother and less sticky.
Is Chitosan Lauroyl Glycinate safe for most people?
Chitosan Lauroyl Glycinate is considered safe for cosmetic use with very low irritation and comedogenic potential. The main caution is for individuals with shellfish allergies, as it is derived from crustacean shells. Patch testing is recommended for sensitive skin.
Who should be careful with Chitosan Lauroyl Glycinate?
Individuals with known shellfish allergies (chitosan is derived from crustacean shells)
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.