Quince Seed
Worst
Irritant
No known benefits
Quince Seed description
Used as a thickening agent in cosmetics, but also has astringent properties and may cause skin sensitivity. For more information, see the entry for _Pyrus Cydonia_.
Ingredient ratings
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.
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We have not yet rated this ingredient because we have not had a chance to review the research on it.