A synthetic film-former that helps makeup and hair products resist water and last longer, but it's not a skincare active.
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
A synthetic film-former that helps makeup and hair products resist water and last longer, but it's not a skincare active.
Irritation
low
Source
synthetic
Polyvinyl Chloride is a synthetic plastic that is not a typical skincare ingredient; it is rarely used in modern cosmetics and is best avoided due to potential impurities and environmental concerns.
Irritation
moderate
Source
synthetic
A synthetic film former that helps products spread evenly and hold their shape, but offers no active skincare benefits.
Irritation
low
Source
synthetic
A synthetic film-former that helps products stay put and resist water, but offers no active skincare benefit.
Irritation
low
Source
synthetic
A synthetic film-former that helps products stay put and resist water, but offers no active skincare benefits.
Irritation
low
Source
synthetic
A synthetic film-former that helps products stay put and feel smooth, but offers no active skincare benefits.
Irritation
low
Source
synthetic
A synthetic film-former that helps products spread smoothly and feel lightweight on skin.
Irritation
low
Source
synthetic
A synthetic film-former that helps products stay put and resist water, but offers no active skincare benefits.
Irritation
low
Source
synthetic
A synthetic film-former that helps create peel-off masks and gives a smooth, tight feel on skin.
Irritation
low
Source
synthetic
A synthetic film-former used for water resistance and durability, not a beneficial skincare active.
Irritation
low
Source
synthetic
A gentle, lab-grown antioxidant that may help protect skin from environmental stress, though human studies are still limited.
Irritation
low
Source
biotech
A lab-grown pomegranate extract that may help protect skin from environmental stress, though human studies are still limited.
Irritation
low
Source
biotech
A gentle, antioxidant-rich ferment that supports skin radiance and barrier health without common irritants.
Irritation
low
Source
biotech
A gentle, antioxidant-rich ferment that supports skin radiance and hydration without common irritants.
Irritation
low
Source
biotech
A gentle, antioxidant-rich botanical powder that may help soothe and protect skin, but its multi-part source means potency can vary.
Irritation
low
Source
natural
A gentle, plant-derived emollient that helps soften and smooth skin without clogging pores.
Irritation
low
Source
natural
A gentle, plant-based antioxidant that may help protect skin from environmental stress, though research on its topical benefits is still emerging.
Irritation
low
Source
natural
A gentle antioxidant from pomegranate peel, modified for better stability in formulas, but research on the modified form is limited.
Irritation
low
Source
semi-synthetic
A stabilized, water-friendly version of pomegranate seed oil that offers antioxidant and moisturizing benefits with low irritation risk.
Irritation
low
Source
semi-synthetic
Pomegranate Seed Powder gently exfoliates while delivering antioxidants, but its texture can be gritty for sensitive skin.
Irritation
low
Source
natural
A gentle, semi-synthetic emollient that helps soften skin without clogging pores, ideal for dry or sensitive skin types.
Irritation
low
Source
semi-synthetic
Pomiferin is a plant-derived antioxidant that helps protect skin from environmental stress, though research on its cosmetic benefits is still emerging.
Irritation
low
Source
natural
Ponderosa pine oil adds a fresh, woodsy scent to products but may irritate sensitive skin and has limited research on skincare benefits.
Irritation
moderate
Source
natural
A gentle botanical extract that helps protect skin from environmental stress while calming irritation.
Irritation
low
Source
natural
A gentle plant extract that may help calm skin and fight free radical damage, though research is still early.
Irritation
low
Source
natural
A gentle botanical extract with antioxidant and soothing potential, though research on its topical benefits is still limited.
Irritation
low
Source
natural
A gentle, antioxidant-rich plant extract from Arctic poppy that may help calm skin and fight free radical damage, though research is still early.
Irritation
low
Source
natural
A gentle, antioxidant-rich flower extract that may help calm irritated skin, but research on its specific benefits is still limited.
Irritation
low
Source
natural
A gentle floral water that may help calm sensitive skin, but its benefits are largely anecdotal and not backed by strong clinical research.
Irritation
low
Source
natural
Poppy seed is a gentle, natural emollient with antioxidant properties, but research on its skincare benefits is still limited.
Irritation
low
Source
natural
Poppy seed oil is a gentle, non-greasy emollient rich in omega-6 fatty acids that helps soften and soothe dry skin without clogging pores.
Irritation
low
Source
natural
A gentle botanical extract from aspen flowers that may help calm skin and provide antioxidant support, though research is still emerging.
Irritation
low
Source
natural
A gentle, plant-derived ingredient that helps calm irritated skin and provides antioxidant protection.
Irritation
low
Source
natural
Skin conditioning agent
Pig Dental Pulp Cell/Adipocyte/Bone Marrow Cell Conditioned Media
An experimental biotech ingredient from pig cells with limited human research and ethical concerns; not recommended for routine use.
Irritation
moderate
Source
biotech
An unusual, animal-derived experimental ingredient with very limited safety and efficacy data for cosmetic use.
Irritation
moderate
Source
biotech
A peptide from porcine sources that may help support skin firmness, but research is limited and ethical concerns exist.
Irritation
low
Source
natural
A gentle, antioxidant-rich mushroom extract that may help calm skin and fight environmental stress, though research is still emerging.
Irritation
low
Source
natural
A gentle, mushroom-derived extract that helps calm irritation and provides antioxidant protection, ideal for sensitive or stressed skin.
Irritation
low
Source
natural
Poria Cocos Powder is a gentle, natural ingredient that can help absorb excess oil and soothe the skin, but its benefits are backed mostly by traditional use and limited modern research.
Irritation
low
Source
natural
Pork-derived ingredients like collagen and glycerin are effective moisturizers, but may not suit vegans or those with religious or ethical restrictions.
Irritation
low
Source
natural
Pork-derived ingredients like collagen and elastin can provide moisturizing and film-forming benefits, but they are not suitable for vegans, vegetarians, or those with religious dietary restrictions.
Irritation
low
Source
natural
An obscure synthetic compound with minimal cosmetic research; not recommended for routine skincare.
Irritation
low
Source
synthetic
A promising natural UV filter from algae that also fights oxidative stress, but currently limited in standalone sunscreen use due to regulatory and formulation challenges.
Irritation
low
Source
natural
A gentle, hydrating seaweed extract with antioxidant potential, best for soothing and moisturizing sensitive or dry skin.
Irritation
low
Source
natural
A gentle, nutrient-rich red algae powder that helps hydrate and protect the skin with antioxidant benefits.
Irritation
low
Source
natural
A gentle, hydrating microalgae extract that helps skin retain moisture and defends against environmental stress.
Irritation
low
Source
natural
Film-Former
PORPHYRIDIUM POLYSACCHARIDE HYDROXYPROPYLTRIMONIUM CHLORIDE
A gentle, algae-derived film-former that helps skin feel smooth and hydrated without clogging pores.
Irritation
low
Source
semi-synthetic
A gentle, hydrating microalgae extract that helps skin retain moisture and defends against environmental stress.
Irritation
low
Source
natural
A gentle, antioxidant-rich ferment that may help calm skin and defend against environmental stress, though research is still early.
Irritation
low
Source
biotech
A gentle plant extract with antioxidant potential, but research is still early and benefits are not yet proven in large human studies.
Irritation
low
Source
natural
A gentle, antioxidant-rich plant extract that helps calm skin and defend against environmental stress.
Irritation
low
Source
natural
A gentle, antioxidant-rich extract from a rare Hawaiian succulent that may help calm irritated skin and fight free radical damage.
Irritation
low
Source
natural
A gentle, ocean-sourced extract that helps hydrate and calm the skin, but research on its benefits is still emerging.
Irritation
low
Source
natural
A gentle, amino-acid-based surfactant that cleanses without stripping, making it a good choice for sensitive or dry skin and hair.
Irritation
low
Source
semi-synthetic
A mild, plant-derived surfactant that cleanses without stripping the skin's natural moisture barrier.
Irritation
low
Source
semi-synthetic
A safe synthetic sweetener used in tiny amounts to improve taste in lip and oral products, but it offers no skincare benefit.
Irritation
low
Source
synthetic
Potassium Acetate is a safe, low-irritation salt that helps control a product's pH and can support preservative systems.
Irritation
low
Source
synthetic
A reliable synthetic thickener that gives gels and creams a smooth, non-sticky texture without clogging pores.
Irritation
low
Source
synthetic
A safe, synthetic polymer that gives products a silky feel and helps them spread evenly without clogging pores.
Irritation
low
Source
synthetic
A gentle, seaweed-derived thickener that gives products a smooth gel feel and can create a temporary tightening sensation on skin.
Irritation
low
Source
natural