A gentle, plant-derived water that may help calm skin and provide antioxidant protection, but research is still limited.
Irritation
low
Source
natural
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
A gentle, plant-derived water that may help calm skin and provide antioxidant protection, but research is still limited.
Irritation
low
Source
natural
A gentle plant 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 protect against environmental stressors, though research is still emerging.
Irritation
low
Source
natural
A gentle, plant-based antioxidant powder that may help calm skin and fight free radicals, but research is still early.
Irritation
low
Source
natural
A gentle plant extract with antioxidant potential, best for those seeking natural, soothing skincare ingredients.
Irritation
low
Source
natural
A gentle plant extract with antioxidant potential, but research in skincare is still limited.
Irritation
low
Source
natural
A gentle, plant-derived antioxidant that may help calm skin and defend against environmental stress, though human studies are limited.
Irritation
low
Source
natural
A gentle, fermented botanical extract that may help calm skin and defend against environmental stress, though research is still emerging.
Irritation
low
Source
natural
A gentle, aromatic botanical water that may offer antioxidant and soothing benefits, but research is limited.
Irritation
low
Source
natural
A gentle plant extract with antioxidant potential, but research is still early and benefits are not yet proven in human skin.
Irritation
low
Source
natural
A fragrant essential oil from shell ginger leaves that adds a pleasant scent to products, but may cause irritation for sensitive skin.
Irritation
moderate
Source
natural
A mild, plant-derived water that may offer soothing and antioxidant benefits, but research is limited and it's often used more for its light scent and hydrating feel than proven efficacy.
Irritation
low
Source
natural
A gentle plant extract with antioxidant potential, but research is still early and benefits are not yet proven in human skin.
Irritation
low
Source
natural
A fragrant plant oil with limited research; may offer mild skin benefits but poses a risk of irritation for sensitive skin.
Irritation
moderate
Source
natural
A gentle, hydrating botanical water that may offer antioxidant and soothing benefits, but research is limited.
Irritation
low
Source
natural
A gentle, plant-derived hydrosol that may help calm skin and provide mild antioxidant benefits, but research is limited.
Irritation
low
Source
natural
A fragrant leaf oil with mild antioxidant potential, best suited for those who enjoy botanical scents and have no sensitivity to essential oils.
Irritation
moderate
Source
natural
A gentle, water-based botanical extract that may offer mild soothing and antioxidant benefits, but research is limited.
Irritation
low
Source
natural
A gentle, water-like botanical ingredient that may help calm skin and provide antioxidant support, but research on its specific benefits is still limited.
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-based powder that may help protect skin from environmental stress, though research is still early.
Irritation
low
Source
natural
A gentle, antioxidant-rich water from shell ginger seeds that may help calm skin and fight free radicals, though research is still early.
Irritation
low
Source
natural
A gentle, plant-derived oil with traditional use for soothing skin, though modern research is still limited.
Irritation
low
Source
natural
A gentle, marine-derived ferment that supports skin hydration and barrier function without irritation.
Irritation
low
Source
biotech
A gentle, hydrating ingredient from marine bacteria that supports skin moisture and resilience.
Irritation
low
Source
biotech
Alumina is a safe, effective abrasive for exfoliation and texture, but can be irritating if particles are too large or used too aggressively.
Irritation
moderate
Source
natural
Aluminum acetate is a mild astringent that can help soothe minor skin irritations, but it is not a common everyday skincare ingredient and may cause dryness or irritation with overuse.
Irritation
moderate
Source
synthetic
Aluminum behenate is a safe, synthetic thickener and stabilizer that helps keep makeup and creams smooth and consistent.
Irritation
low
Source
synthetic
Aluminum Benzoate is a synthetic colorant and opacifier with limited skincare benefits and potential concerns about aluminum absorption.
Irritation
low
Source
synthetic
Aluminum bromohydrate is a common antiperspirant active that effectively reduces sweat but may cause irritation for sensitive skin.
Irritation
moderate
Source
synthetic
A safe, non-irritating mineral pigment that adds opacity and subtle color to makeup, but offers no active skincare benefits.
Irritation
low
Source
synthetic
Aluminum Caprylate is a safe, synthetic thickener and stabilizer that helps maintain product texture but offers no direct skin benefit.
Irritation
low
Source
synthetic
A collagen-based ingredient that helps control shine and smooth skin texture, but its aluminum content raises mild precaution for sensitive skin.
Irritation
low
Source
semi-synthetic
Aluminum chloride is effective at reducing sweat but can cause irritation and has raised safety questions; use with caution on sensitive skin.
Irritation
moderate
Source
synthetic
Aluminum chlorohydrate is an effective antiperspirant that blocks sweat glands temporarily, but it may cause irritation for sensitive skin and has been the subject of ongoing safety debates.
Irritation
moderate
Source
synthetic
Aluminum citrate works as an astringent and antiperspirant, but may cause irritation for sensitive skin and raises environmental concerns.
Irritation
moderate
Source
synthetic
Aluminum Diacetate works as an astringent to tighten skin and reduce sweat, but it can be drying and may irritate sensitive skin.
Irritation
moderate
Source
synthetic
A synthetic thickener and stabilizer that helps keep formulas smooth and consistent, but it's not a skincare active.
Irritation
low
Source
synthetic
A gentle synthetic emulsifier that helps blend water and oil in creams and lotions, giving them a smooth, non-greasy feel.
Irritation
low
Source
synthetic
A safe and effective thickener and stabilizer that improves product texture and shelf life, but offers no direct skin benefit.
Irritation
low
Source
synthetic
A safe, synthetic thickener and opacifier that improves product texture and stability without major skin concerns.
Irritation
low
Source
synthetic
Aluminum Distearate is a safe, synthetic thickener that helps keep creams and makeup smooth and stable, but it offers no direct skin benefit.
Irritation
low
Source
synthetic
Aluminum Glycinate helps reduce sweat and tighten skin, but may cause irritation for sensitive skin types.
Irritation
moderate
Source
synthetic
A semi-synthetic ingredient that helps cosmetics feel smooth and stay put, but its animal-derived origin may not suit everyone.
Irritation
low
Source
semi-synthetic
A safe, mineral-based colorant that adds opacity and a matte finish to makeup, with a strong safety record.
Irritation
low
Source
natural
A safe, non-irritating mineral that improves product texture and opacity but offers no direct skin benefit.
Irritation
low
Source
natural
UV Filter
ALUMINUM HYDROXY BIS-METHYLENE BIS-DI-T-BUTYLPHENYL PHOSPHATE
A synthetic UV filter that provides broad-spectrum sun protection with a low irritation profile, commonly used in sunscreens and daily SPF products.
Irritation
low
Source
synthetic
Bulking Agent
Aluminum Iron Calcium Magnesium Germanium Silicates
A mineral blend that improves texture and feel in powders, but with limited research on its specific benefits.
Irritation
low
Source
natural
Aluminum isopropoxide is a synthetic stabilizer rarely used in leave-on skincare; it may pose irritation risks and is best avoided in sensitive skin products.
Irritation
moderate
Source
synthetic
A synthetic thickener and stabilizer that improves product texture and feel, generally considered safe for most skin types.
Irritation
low
Source
synthetic
A synthetic thickener and stabilizer that improves product texture and shelf life, generally considered safe for most skin types.
Irritation
low
Source
synthetic
Viscosity Controlling
ALUMINUM ISOSTEARATES/LAURATES/STEARATES
A synthetic thickener and stabilizer that helps keep makeup and creams smooth and consistent, but its aluminum content raises mild safety questions for some users.
Irritation
low
Source
synthetic
A synthetic thickener and stabilizer that helps create smooth, creamy textures in makeup and skincare, but its aluminum content raises questions for some users.
Irritation
low
Source
synthetic
A synthetic thickener and stabilizer that helps keep makeup and creams smooth, but may be moderately pore-clogging for some.
Irritation
low
Source
synthetic
A safe and effective thickener and stabilizer that helps create smooth, creamy textures in makeup and skincare, but offers no direct skin benefit.
Irritation
low
Source
synthetic
A synthetic emulsifier that helps create smooth, stable creams and lotions, generally considered safe and non-irritating.
Irritation
low
Source
synthetic
Aluminum Lactate works as an astringent to reduce sweat and tighten pores, but may cause irritation for sensitive skin.
Irritation
moderate
Source
synthetic
Aluminum Lanolate is a waxy stabilizer that helps keep water and oil mixed, but it may not suit acne-prone skin due to its moderate comedogenic potential.
Irritation
low
Source
semi-synthetic
Aluminum Methionate works as an astringent and antiperspirant, but its safety is debated and it may irritate sensitive skin.
Irritation
moderate
Source
synthetic
Aluminum Myristate is a synthetic thickener and opacifier that improves product texture but may be moderately comedogenic for acne-prone skin.
Irritation
low
Source
synthetic