P-Cresol is a synthetic fragrance and preservative compound that can be irritating; it is rarely used in modern leave-on skincare and is best avoided by sensitive skin.
Irritation
moderate
Source
synthetic
Beauty ingredient research
Browse the review database to understand what an ingredient is, what it does in a beauty formula, when it is useful, and when it deserves caution across skincare, haircare, bodycare, makeup, and more.
20769
Reviewed ingredients
524
Low-concern standouts
2884
Need usage caution
P-Cresol is a synthetic fragrance and preservative compound that can be irritating; it is rarely used in modern leave-on skincare and is best avoided by sensitive skin.
Irritation
moderate
Source
synthetic
A synthetic fragrance compound that adds scent but offers no skincare benefit; may cause irritation in sensitive individuals.
Irritation
moderate
Source
synthetic
A synthetic fragrance ingredient with limited public safety data; best for those who tolerate synthetic fragrances well.
Irritation
moderate
Source
synthetic
P-Cresyl Benzoate is a synthetic fragrance ingredient with limited safety data; it may cause irritation in sensitive individuals.
Irritation
moderate
Source
synthetic
p-Cresyl Isobutyrate is a synthetic fragrance ingredient that adds a sweet, floral note to products, but it offers no skincare benefits and may be a concern for those with fragrance sensitivities.
Irritation
low
Source
synthetic
A synthetic fragrance ester that adds a sweet, floral note to products but offers no skincare benefit beyond scent.
Irritation
low
Source
synthetic
P-Cresyl Methyl Ether is a synthetic fragrance component that adds a pleasant floral note but offers no skincare benefits and may be a concern for those with fragrance sensitivities.
Irritation
low
Source
synthetic
A synthetic ester that adds a subtle scent and light conditioning feel, but offers no active skincare benefits.
Irritation
low
Source
synthetic
A synthetic fragrance ingredient that adds a pleasant floral scent but offers no skincare benefits and may be unnecessary for sensitive skin.
Irritation
low
Source
synthetic
A synthetic fragrance compound that adds a floral hyacinth note but offers no skincare benefit; safe at low concentrations but may cause sensitivity in some individuals.
Irritation
low
Source
synthetic
P-Ethylphenetole is a synthetic fragrance ingredient with limited published safety data; it is generally considered safe at low concentrations but may cause sensitivity in some individuals.
Irritation
low
Source
synthetic
A synthetic fragrance ingredient that adds a pleasant scent but offers no skincare benefits; generally safe at low levels but may cause sensitivity in some individuals.
Irritation
low
Source
synthetic
P-Menthadiene is a natural fragrance compound with mild antioxidant potential, but it may cause skin sensitivity in some people.
Irritation
moderate
Source
natural
P-Menthanone is a synthetic fragrance ingredient that adds a minty or herbal note, but it offers no direct skincare benefits and may cause sensitivity in some individuals.
Irritation
low
Source
synthetic
A synthetic minty fragrance that adds a fresh scent but may cause irritation for sensitive skin types.
Irritation
moderate
Source
synthetic
A synthetic fragrance ingredient that adds a pleasant floral note but may cause irritation in sensitive individuals.
Irritation
moderate
Source
synthetic
P-Methoxypropiophenone is a synthetic fragrance compound with limited safety data; it is generally considered safe at low concentrations but may cause sensitivity in some individuals.
Irritation
low
Source
synthetic
A synthetic fragrance ingredient that adds a sweet, floral scent but offers no skincare benefits and may cause sensitivity in some individuals.
Irritation
low
Source
synthetic
A synthetic fragrance compound that adds scent but may cause skin irritation in sensitive individuals.
Irritation
moderate
Source
synthetic
A synthetic fragrance ingredient that adds a floral, sweet scent but offers no skincare benefit and may cause sensitivity in some individuals.
Irritation
low
Source
synthetic
A synthetic fragrance ingredient that adds scent but may cause irritation in sensitive individuals.
Irritation
moderate
Source
synthetic
A synthetic fragrance ingredient that adds a floral, sweet scent but may cause skin irritation in sensitive individuals.
Irritation
moderate
Source
synthetic
A synthetic floral scent ingredient that is generally safe at low levels but may cause skin reactions in sensitive individuals.
Irritation
low
Source
synthetic
p-Tolyl Phenylacetate is a synthetic fragrance ingredient that adds a floral, honey-like scent to products; it is generally considered safe at low concentrations but may cause irritation in sensitive individuals.
Irritation
low
Source
synthetic
P-Vinylphenol is a synthetic fragrance compound with limited cosmetic research; it may pose irritation risks and is not a functional skincare active.
Irritation
moderate
Source
synthetic
Palmarosa oil adds a pleasant floral scent and may help reduce bacteria on skin, but it can be irritating for sensitive skin if used at high concentrations.
Irritation
moderate
Source
natural
Pandan leaf oil adds a pleasant natural fragrance and mild antioxidant benefits, but its strong aroma and limited research mean it's best for those who enjoy botanical scents and have no fragrance sensitivities.
Irritation
moderate
Source
natural
Parsley Leaf Oil adds a fresh herbal scent and antioxidant benefits, but it can be irritating for sensitive skin and is best used in low concentrations.
Irritation
moderate
Source
natural
Patchouli Leaf Oil adds a warm, earthy scent to products and may offer mild antioxidant benefits, but it's primarily a fragrance ingredient with limited direct skincare research.
Irritation
low
Source
natural
Fragrance
Citrus Aurantium Dulcis (Orange) Peel Oil, Citrus Limon (Lemon) Peel Oil, Citrus Paradisi (Grapefruit) Peel Oil
Peel oils add a fresh citrus scent and mild antioxidant activity, but they can be irritating for sensitive skin and are primarily used for fragrance.
Irritation
moderate
Source
natural
Pentadecalactone is a synthetic musk that adds a pleasant, long-lasting scent to products, but it offers no skincare benefits and may be a concern for those avoiding synthetic fragrances.
Irritation
low
Source
synthetic
A synthetic fragrance ingredient that adds a pleasant floral note but offers no skincare benefits and may be a concern for those with fragrance sensitivities.
Irritation
low
Source
synthetic
A synthetic fragrance alcohol that adds a pleasant scent but offers no skincare benefits; generally safe at low concentrations.
Irritation
low
Source
synthetic
A synthetic scent ingredient that gives a warm, woody aroma but offers no skin benefit and may cause sensitivity in some people.
Irritation
low
Source
synthetic
A synthetic fragrance ingredient that provides a woody, amber scent but offers no skincare benefits and may cause sensitivity in some individuals.
Irritation
low
Source
synthetic
A synthetic fragrance ingredient that adds a pleasant floral-woody note but offers no skincare benefit and may cause sensitivity in some people.
Irritation
low
Source
synthetic
A synthetic scent ingredient that adds a pleasant floral-green note but offers no skincare benefit and may cause sensitivity in some individuals.
Irritation
low
Source
synthetic
Peppermint oil adds a cooling tingle and fresh scent to products, but can be irritating for sensitive skin.
Irritation
moderate
Source
natural
Perillyl alcohol is a natural aromatic compound with some antioxidant promise, but it's used in tiny amounts mainly for scent and may irritate sensitive skin.
Irritation
moderate
Source
natural
A synthetic fragrance ester that adds a fruity, floral scent to products but offers no skincare benefits.
Irritation
low
Source
synthetic
A synthetic fragrance ester that adds a floral, honey-like scent; generally safe at low concentrations but may cause sensitivity in some individuals.
Irritation
low
Source
synthetic
Phenethyl acetate is a pleasant-smelling fragrance ingredient found naturally in many flowers and fruits, generally considered safe at the low levels used in cosmetics.
Irritation
low
Source
natural
A gentle, rose-scented alcohol that adds fragrance and helps preserve formulas without the drying effects of denatured alcohol.
Irritation
low
Source
natural
Phenethyl anthranilate is a synthetic fragrance ingredient with mild UV-absorbing properties, generally considered safe at low concentrations but may cause sensitivity in some individuals.
Irritation
low
Source
synthetic
Phenethyl benzoate is a gentle synthetic ester that helps condition skin and carry fragrance, with a low risk of irritation.
Irritation
low
Source
synthetic
Phenethyl Butyrate is a synthetic fragrance ingredient that adds a pleasant floral or fruity scent to products, but it offers no skincare benefits and may cause sensitivity in some individuals.
Irritation
low
Source
synthetic
Phenethyl Cinnamate is a gentle, naturally derived fragrance ingredient with some antioxidant potential, but its benefits in skincare are not yet well-established.
Irritation
low
Source
natural
Phenethyl Formate is a synthetic fragrance ingredient that adds a floral, rose-like scent to products; it is generally considered safe at low concentrations but offers no skincare benefits.
Irritation
low
Source
synthetic
Phenethyl Isovalerate is a synthetic fragrance ingredient that adds a pleasant floral-honey note to products, with a low risk of irritation for most people.
Irritation
low
Source
synthetic
A synthetic scent ingredient that adds a pleasant floral note but offers no skincare benefit and may be unnecessary for sensitive noses.
Irritation
low
Source
synthetic
Phenethyl Phenylacetate is a synthetic fragrance ingredient that adds a sweet, floral scent to products but offers no direct skincare benefits.
Irritation
low
Source
synthetic
A synthetic ester that adds a mild floral scent and light emollient feel, generally considered safe at low concentrations.
Irritation
low
Source
synthetic
Phenethyl Propionate is a synthetic fragrance ingredient that adds a sweet, floral scent to products, but it offers no skin benefits and may cause sensitivity in some individuals.
Irritation
low
Source
synthetic
Phenethyl Salicylate is a gentle synthetic ingredient that adds a pleasant floral scent and offers mild UV protection, but it is not a primary sunscreen agent.
Irritation
low
Source
synthetic
Phenethyl Tiglate is a synthetic fragrance ingredient that adds a floral, rosy scent to products, but offers no skincare benefits and may be a concern for those with fragrance sensitivities.
Irritation
low
Source
synthetic
Phenoxyacetaldehyde is a synthetic fragrance compound that adds a floral scent but may cause skin irritation in sensitive individuals.
Irritation
moderate
Source
synthetic
Phenoxyethyl isobutyrate is a synthetic fragrance ingredient with low irritation potential, but it offers no skincare benefits beyond scent.
Irritation
low
Source
synthetic
Phenyl benzoate is a synthetic fragrance ingredient that adds scent to products but may cause irritation in sensitive skin.
Irritation
moderate
Source
synthetic
Phenylacetaldehyde adds a floral, hyacinth-like scent to products but can be a skin sensitizer for some individuals.
Irritation
moderate
Source
synthetic
A synthetic floral scent ingredient that can be a skin sensitizer for some people, especially at higher concentrations.
Irritation
moderate
Source
synthetic