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Researched by Helena DeMaria-Williams

Formula IngredientSkin Brightener

N-Acetyl Glucosamine

INCI: Acetyl Glucosamine

N-Acetyl Glucosamine (NAG) is an amino sugar naturally present in skin and a key precursor to hyaluronic acid biosynthesis. It works by inhibiting the enzyme tyrosinase, which is responsible for melanin production, making it an effective brightening agent. As a skin-identical ingredient, it also supports the skin barrier and contributes to natural moisturisation.

Category

Skin Brightener

Irritation Risk

Low

Skin Types

all skin types, oily, dry, combination, sensitive, acne-prone, hyperpigmentation, dull skin, anti-ageing concerns

What does this do in a formula?

skin brightening, hyperpigmentation reduction, anti-ageing, moisturisation, skin barrier support, wrinkle improvement

Is N-Acetyl Glucosamine safe? Key considerations

Can N-Acetyl Glucosamine cause irritation?

Low Risk

N-Acetyl Glucosamine is a skin-identical amino sugar with an excellent safety profile. No EU CosIng Annex II or III restrictions apply. Clinical studies at 2% show no significant irritation across all skin types, including sensitive skin.

Does N-Acetyl Glucosamine increase sun sensitivity?

No Risk

N-Acetyl Glucosamine does not increase photosensitivity. It is not an AHA, BHA, or retinoid. No additional sun protection measures are required beyond a standard daily SPF routine.

Is N-Acetyl Glucosamine safe during pregnancy?

Safe

N-Acetyl Glucosamine is a skin-identical amino sugar with minimal systemic absorption when applied topically. It is not associated with reproductive or developmental concerns. Generally considered safe to use during pregnancy, though as with all cosmetics, consulting a healthcare provider is advisable.

How does N-Acetyl Glucosamine work?

N-Acetyl Glucosamine (NAG) is an amino sugar naturally present in skin and a key precursor to hyaluronic acid biosynthesis. It works by inhibiting the enzyme tyrosinase, which is responsible for melanin production, making it an effective brightening agent. As a skin-identical ingredient, it also supports the skin barrier and contributes to natural moisturisation.

Which products contain N-Acetyl Glucosamine?

Shop products that contain N-Acetyl Glucosamine