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This nano-sized form of sulfur has antimicrobial and soothing properties.
This chemical element’s antimicrobial and anti-inflammatory properties are used to treat many skin issues.
This combination of two separate ingredients can have both healing and astringent properties.
This herbal ingredient has antioxidant properties but can also cause skin irritation.
Effective for soothing skin, but there is no research showing it has any impact when used in skin care products.
Like all plant extracts, this contains components that function as antioxidants. There is some potential for sensitivity with sage extracts, but the risk is relatively low at the amounts used in topical skincare products.
Plant extract that contains components that function as antioxidants. There is some potential for sensitivity with sage extracts, but the risk is relatively low at the amounts used in topical skin care products.
An inorganic salt that has no known function in cosmetics.
Reducing agent that alters the structure of hair. It can also be used as a preservative in cosmetic formulations, and can be a skin sensitizer.
Extract derived from the leaf or flower of the thyme plant. It can have potent antioxidant properties but may also cause skin sensitivity due to fragrant components.
Extract of wild thyme.
Derived from the leaf or flower of the thyme plant. It can have potent antioxidant properties but may also cause skin sensitivity due to fragrant components.
Extract that has weak antioxidant properties. May be a potential skin sensitizer.
This lotion can effectively treat several skin conditions, but long-term use can lead to skin drying out.
Name for a genus of plants that includes chili peppers and bell peppers. Learn more at Paula’s Choice.
This oil derived from the prickly ash plant has some beneficial properties but can also 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.