Benzyl isobutyrate is a synthetic fragrance ingredient that adds a sweet, floral scent to products; it is generally safe at low levels but may cause allergic reactions in sensitive individuals.
Irritation
low
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
Benzyl isobutyrate is a synthetic fragrance ingredient that adds a sweet, floral scent to products; it is generally safe at low levels but may cause allergic reactions in sensitive individuals.
Irritation
low
Source
synthetic
Benzyl Isovalerate is a synthetic fragrance ingredient that adds a floral or fruity scent to products, but it offers no skincare benefits and may cause sensitivity in some individuals.
Irritation
low
Source
synthetic
Benzyl Laurate is a lightweight, non-greasy emollient that helps soften skin and improve product texture without clogging pores.
Irritation
low
Source
synthetic
A gentle, non-greasy emollient that softens skin and improves product texture without clogging pores.
Irritation
low
Source
synthetic
Benzyl Methyl Ether is a synthetic fragrance ingredient with limited safety data; it may cause skin irritation in sensitive individuals.
Irritation
moderate
Source
synthetic
Benzyl nicotinate creates a temporary flush or warmth by widening blood vessels, but it offers no lasting skincare benefit and can irritate sensitive skin.
Irritation
moderate
Source
synthetic
Benzyl Octanoate is a gentle emollient and fragrance component that helps soften skin and improve product texture, with a low risk of irritation.
Irritation
low
Source
synthetic
Benzyl PCA is a gentle humectant that helps attract moisture to the skin, but it's less studied than more common hydrators like glycerin or hyaluronic acid.
Irritation
low
Source
synthetic
Benzyl Phenylacetate is a synthetic fragrance ingredient that adds a sweet, honey-like scent, but it may be a concern for those with sensitive skin or fragrance allergies.
Irritation
low
Source
synthetic
Benzyl Propionate is a synthetic fragrance ingredient that adds a sweet, floral scent to products; it is generally considered safe at low concentrations but may cause sensitivity in some individuals.
Irritation
low
Source
synthetic
Benzyl Salicylate is a common fragrance ingredient that can help stabilize formulas but may cause skin reactions in sensitive individuals.
Irritation
moderate
Source
synthetic
A synthetic fragrance ingredient that adds a pleasant floral note but offers no skincare benefits and may cause sensitivity in some individuals.
Irritation
low
Source
synthetic
Benzyl Tiglate is a synthetic fragrance ingredient that adds a sweet, floral scent to products; it is generally considered safe at low concentrations but may cause sensitivity in some individuals.
Irritation
low
Source
synthetic
Benzyl Ursolate is a promising antioxidant and anti-inflammatory ingredient, but research is still early and it's not widely used in mainstream products.
Irritation
low
Source
semi-synthetic
Benzyl Valerate is a synthetic fragrance ingredient that adds a pleasant scent to products, but it offers no skincare benefits and may cause sensitivity in some individuals.
Irritation
low
Source
synthetic
Benzyladenine is a synthetic plant growth regulator that may help reduce the appearance of fine lines and wrinkles, but human research is limited.
Irritation
low
Source
synthetic
Anti-aging agent
BENZYLCARBAMATO CINNAMIDOISOPENTYL DIPEPTIDE-38 AMIDE
A synthetic peptide that may help soften expression lines and improve skin firmness, but evidence is mostly from ingredient supplier studies.
Irritation
low
Source
synthetic
Skin conditioning agent
BENZYLCARBAMOYL NAPHTHYLMETHYL LAUROYLBENZOATEMETHYL DIOXOMETHYLPYRAZINOPYRIMIDINE
A novel synthetic compound that may help firm skin and soften wrinkles, but research is still limited compared to more established anti-aging ingredients.
Irritation
low
Source
synthetic
Benzylhemiformal is an effective preservative but can be a skin sensitizer, especially in leave-on products.
Irritation
moderate
Source
synthetic
A synthetic UV filter that effectively absorbs UVB and short UVA rays, but its use is restricted in some countries due to environmental concerns.
Irritation
low
Source
synthetic
A synthetic antioxidant that may help protect skin from environmental damage, but research is still emerging.
Irritation
low
Source
synthetic
UV Filter
Benzylidenecamphor Hydrolyzed Collagen Sulfonamide
An experimental UV-filter ingredient that may offer sun protection and skin conditioning, but it is rarely used in mainstream products and has limited safety data.
Irritation
moderate
Source
semi-synthetic
Benzylparaben is an effective preservative, but its safety is debated due to potential endocrine-disrupting effects, leading many brands to avoid it.
Irritation
low
Source
synthetic
Anti-wrinkle agent
Benzylsulfonyl D-Seryl Homophenylalanine Amidinobenzamide Acetate
A synthetic peptide-like ingredient that may help soften expression lines by temporarily relaxing facial muscles, but research is limited and results vary.
Irritation
low
Source
synthetic
Firming agent
Benzylsulfonylseryl-glycine Amidinobenzamide Acetate
A synthetic peptide that may help reduce under-eye bags and improve skin firmness, but research is still emerging.
Irritation
low
Source
synthetic
An effective preservative but can be irritating for sensitive skin; better suited for rinse-off formulas.
Irritation
moderate
Source
synthetic
A positively charged collagen derivative that clings to hair and skin to provide conditioning, smoothness, and a protective film.
Irritation
low
Source
semi-synthetic
A gentle plant extract with antioxidant potential, but research is limited and benefits are not yet well-established in human skin.
Irritation
low
Source
natural
A gentle plant-root extract with antioxidant potential, but research is still early and benefits are not yet proven in human skin.
Irritation
low
Source
natural
Bergamot fruit extract adds a pleasant citrus scent and antioxidant benefits, but its phototoxic compounds mean it must be used in low concentrations or with the furocoumarins removed.
Irritation
moderate
Source
natural
Bergamot fruit oil adds a pleasant citrus scent but can cause sun sensitivity; look for bergapten-free versions for safer daytime use.
Irritation
moderate
Source
natural
Bergamot fruit water adds a fresh citrus scent and mild toning effect, but can increase sun sensitivity if not properly processed.
Irritation
moderate
Source
natural
A gentle, lab-grown antioxidant from bergamot leaves that may help calm skin and fight free radicals, but research is still early.
Irritation
low
Source
biotech
A gentle botanical extract with antioxidant potential, but research on its specific skincare benefits is still limited.
Irritation
low
Source
natural
Bergamot leaf oil adds a fresh citrus scent to products but can be irritating and is phototoxic if not properly processed.
Irritation
moderate
Source
natural
A gentle botanical extract with antioxidant potential, but research on its skincare benefits is still limited.
Irritation
low
Source
natural
Bergamot Peel Oil adds a fresh citrus scent to products but can cause sun sensitivity and irritation, so it's best used with caution and proper formulation.
Irritation
moderate
Source
natural
Bergamot Peel Water offers a refreshing, lightly astringent feel but can increase sun sensitivity due to natural photosensitizing compounds.
Irritation
moderate
Source
natural
A gentle plant-root extract with antioxidant potential, but research is still early and benefits are not yet proven in human skin.
Irritation
low
Source
natural
A gentle, antioxidant-rich root extract that may help calm skin and fight environmental stress, but research is still early.
Irritation
low
Source
natural
A gentle plant extract that may help protect skin from environmental stress and calm minor irritation, though research is still early.
Irritation
low
Source
natural
A gentle plant extract with antioxidant and soothing potential, but research on its cosmetic benefits is still limited.
Irritation
low
Source
natural
Bergenin is a plant-derived antioxidant that may help calm skin and fight free radical damage, but research in cosmetics is still limited.
Irritation
low
Source
natural
A gentle, plant-based powder with antioxidant potential, but research is limited and it may not be a standout ingredient.
Irritation
low
Source
natural
Antioxidant
LACTOBACILLUS/SACCHAROMYCES/(BLUEBERRY/RASPBERRY/STRAWBERRY/CRANBERRY/EUTERPE OLERACEA) FRUIT/THYME/ROSEMARY/VACCINIUM MYRTILLUS/ROSA CANINA/CYMBOPOGON SCHOENANTHUS/ERIOCEPHALUS PUNCTULATUS FERMENT
A fermented botanical complex that may help soothe and protect skin with antioxidants, though research on the specific blend is limited.
Irritation
low
Source
biotech
Antioxidant
BERBERIS VULGARIS ROOT/FRAGARIA CHILOENSIS FRUIT/LYCIUM CHINENSE FRUIT/MORUS NIGRA FRUIT EXTRACT
A gentle botanical blend that may help calm skin and fight free radicals, but research is limited on this specific combination.
Irritation
low
Source
natural
Beta-Alanine is a gentle amino acid that helps maintain skin hydration and resilience, but it is not a standout active for dramatic anti-aging results.
Irritation
low
Source
natural
A gentle synthetic chelator that helps your skincare products stay effective longer by preventing metal ions from breaking down ingredients.
Irritation
low
Source
synthetic
Anti-wrinkle agent
BETA-ALANYL HYDROXYPROLYLDIAMINOBUTYROYL BENZYLAMIDE
A peptide that mimics the effects of Botox in a milder, topical form, helping soften expression lines over time.
Irritation
low
Source
synthetic
A natural orange-red pigment that also provides antioxidant benefits, but its color can be unstable in some formulations.
Irritation
low
Source
natural
Beta-Caryophyllene is a plant-derived compound that helps calm skin and fight oxidative stress, making it a gentle addition to soothing formulations.
Irritation
low
Source
natural
A gentle, hydrating sugar that calms irritation and supports the skin barrier without clogging pores.
Irritation
low
Source
natural
A gentle, multi-tasking ingredient that hydrates, soothes, and helps strengthen the skin barrier and hair fibers.
Irritation
low
Source
semi-synthetic
A gentle, semi-synthetic humectant that helps hydrate and calm the skin, with improved stability over plain beta-glucan.
Irritation
low
Source
semi-synthetic
A mild synthetic ester that adds a pleasant floral scent to products; limited research on direct skin benefits.
Irritation
low
Source
synthetic
Beta-Ionol is a synthetic fragrance ingredient that adds a pleasant scent to products but offers no direct skincare benefits.
Irritation
low
Source
synthetic
Beta-Ionone adds a pleasant violet-like scent to products and may offer mild antioxidant benefits, but it can be a skin sensitizer for some people.
Irritation
moderate
Source
natural
A synthetic scent ingredient that adds a warm, woody note to products but offers no skincare benefits.
Irritation
low
Source
synthetic
A plant-derived antioxidant that may help protect skin from environmental stress, but its use is limited by potential irritation at higher levels.
Irritation
moderate
Source
natural
A synthetic fragrance ingredient that adds a pine-like scent but may cause irritation in sensitive skin.
Irritation
moderate
Source
synthetic