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Advanced glycation endproducts, also known as AGEs, are caused by the body's major fuel source, namely glucose.
Also known as red sandalwood, this fragrance ingredient poses a risk of irritating skin.
Advanced glycation endproducts are caused by the body's major fuel source, namely glucose.
This solvent is commonly used as nail polish remover and can irritate skin and mucus membranes.
Plant for which there is little research showing it to have any benefit for skin.
Soaps that often contain strong cleansing ingredients, they are often overly drying.
Used topically, this ingredient's methanol content makes it potentially sensitising for skin.
Extract that can have antioxidant properties, although it also may have harmful components.
Anything with a pH higher than 7 is alkaline; a pH below 7 is acidic.
Alpha isomethyl ionone is a fragrance ingredient that must be listed on products that contain it due to its risk of causing a sensitised reaction.
This synthetic fragrance ingredient has been shown to cause allergic contact dermatitis.
This fragrance ingredient contains components that can cause skin irritation and sensitivity.
This oil from the root of an alpine plant contains a high amount of skin-sensitizing limonene.
Synthetic fragrance used in cosmetics.
Also known as aniseed, it can have antioxidant properties.
Extract from the plant Arnica montana.
English name for wild ginger.
Extract derived from a fragrant plant; it poses some risk of causing skin sensitivity.
Fatty resin that when applied topically can cause skin sensitivity.
Fragrant volatile oil and plant extract taken from the Laurus nobilis plant that can sensitize skin.
Can have antioxidant properties.
Balsam resin that has some fragrant properties; it may also be sensitising to skin.
A volatile fragrance chemical with a sweet, floral odor used to impart scent to cosmetic products and perfumes.
This citrus oil is known to sensitize skin, especially when it’s exposed to UV light.
Synthetic fragrance compound with a floral scent that’s derived from the volatile citronellol. It can cause skin sensitization.
Rose-derived essential oil with volatile fragrant compounds that pose a risk of irritation to skin.
Synthetic fragrance ingredient used to impart a sweet, musky odor to cosmetics. Can irritate skin.
Citrus fruit whose volatile compounds are sensitising.
A volatile chemical compound often found in citrus oils. It’s used as a fragrance and solvent but can sensitize skin.
A plant-derived fragrant compound that can cause skin sensitization, especially when exposed to air.
The litsea or may chang plant produces fragrant essential oils whose aromatic compounds, like citral, are known to irritate skin.
Proven and supported by independent studies. Outstanding active ingredient for most skin types or concerns.
Necessary to improve a formula's texture, stability, or penetration.
Generally non-irritating but may have aesthetic, stability, or other issues that limit its usefulness.
There is a likelihood of irritation. Risk increases when combined with other problematic ingredients.
May cause irritation, inflammation, dryness, etc. May offer benefit in some capability but overall, proven to do more harm than good.
We couldn't find this in our ingredient dictionary. We log all missing ingredients and make continuous updates.
We have not yet rated this ingredient because we have not had a chance to review the research on it.