A gentle plant extract with antioxidant potential, but research on its specific benefits for skin 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 extract with antioxidant potential, but research on its specific benefits for skin is still limited.
Irritation
low
Source
natural
A gentle botanical extract with potential soothing and antioxidant benefits, but research on its specific effects in skincare is still limited.
Irritation
low
Source
natural
A gentle plant extract with antioxidant potential, but research on its specific skin benefits is still limited.
Irritation
low
Source
natural
A gentle botanical extract with antioxidant potential, but research is still emerging and benefits are not yet proven in large human studies.
Irritation
low
Source
natural
A gentle botanical extract with antioxidant potential, but research on its cosmetic benefits is still limited.
Irritation
low
Source
natural
Skin conditioning agent
HORSE ADIPOSE STROMAL CELL CONDITIONED MEDIA
A novel, lab-grown ingredient derived from horse stem cells that may support skin repair, but human research is very limited and it remains a niche, high-cost option.
Irritation
low
Source
biotech
Antioxidant
AESCULUS HIPPOCASTANUM BARK/DAUCUS CAROTA ROOT/FOENICULUM VULGARE FRUIT EXTRACT
A gentle botanical blend that offers antioxidant and soothing benefits, but its effectiveness depends on the specific formulation and concentration.
Irritation
low
Source
natural
Horse chestnut bark extract is a gentle botanical that may help calm skin and fight free radical damage, but its effectiveness in skincare is still being studied.
Irritation
low
Source
natural
A gentle botanical extract that may help calm skin and fight free radical damage, but research is still emerging.
Irritation
low
Source
natural
A gentle, antioxidant-rich flower extract that may help calm skin and support a healthy-looking complexion.
Irritation
low
Source
natural
A gentle, soothing floral water that may help calm irritated skin and provide mild astringent benefits, but research on its cosmetic efficacy is limited.
Irritation
low
Source
natural
A gentle botanical powder that may help calm skin and support microcirculation, but raw forms can be irritating if not properly processed.
Irritation
low
Source
natural
A gentle, plant-based extract that helps calm skin and fight free radical damage, but research is more focused on the seed than the leaf.
Irritation
low
Source
natural
Horse fat is a traditional emollient that can soften skin, but it's not widely studied and may feel heavy for oily skin types.
Irritation
low
Source
natural
A mild, amino-acid-based surfactant from horse fat that cleanses without stripping the skin.
Irritation
low
Source
natural
A gentle botanical extract with antioxidant potential, but research on its specific skincare benefits is still limited.
Irritation
low
Source
natural
Horseradish peroxidase is a natural enzyme that acts as a potent antioxidant, helping to neutralize free radicals and support skin resilience, though research in cosmetics is still emerging.
Irritation
low
Source
natural
Horseradish Root Extract offers antioxidant and antimicrobial benefits but can be irritating for sensitive skin, especially at high concentrations.
Irritation
moderate
Source
natural
Soothing agent
EQUISETUM ARVENSE/(ARNICA MONTANA/CHAMOMILLA RECUTITA) FLOWER EXTRACT
A gentle botanical blend that may help calm skin and provide antioxidant support, but individual plant sensitivities are possible.
Irritation
low
Source
natural
Horsetail extract is a gentle botanical rich in silica and antioxidants, often used to soothe and support skin barrier function.
Irritation
low
Source
natural
A gentle, silica-rich plant juice that may help soothe skin and support a healthy-looking complexion, but its benefits are mostly anecdotal.
Irritation
low
Source
natural
A gentle, mineral-rich botanical powder that can help soothe skin and absorb excess oil, but its benefits are modest and best suited for combination or oily skin types.
Irritation
low
Source
natural
A gentle botanical powder that may help soothe skin and provide antioxidant benefits, but research is limited compared to more studied ingredients.
Irritation
low
Source
natural
A gentle, plant-based antioxidant extract with limited but promising research; best for sensitive or environmentally stressed skin.
Irritation
low
Source
natural
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-derived extract that may help calm skin and fight free radicals, though research is still limited.
Irritation
low
Source
natural
Soothing agent
Bacillus/Houttuynia Cordata Leaf Extract/Volcanic Ash Ferment Filtrate
A fermented botanical-mineral blend that may help calm irritation and provide antioxidant protection, though research is still emerging.
Irritation
low
Source
biotech
A gentle, plant-based ingredient that helps calm redness and provides antioxidant protection, ideal for sensitive or acne-prone skin.
Irritation
low
Source
natural
A gentle, plant-based powder that helps calm irritated skin and provides antioxidant protection, ideal for sensitive or acne-prone skin.
Irritation
low
Source
natural
A gentle, plant-derived water that helps calm irritation and provides antioxidant protection, ideal for sensitive or reactive skin.
Irritation
low
Source
natural
Soothing agent
LACTOBACILLUS/HOUTTUYNIA CORDATA LEAF EXTRACT FERMENT FILTRATE
A fermented botanical extract that may calm irritation and support a healthy skin barrier, though research is still early.
Irritation
low
Source
biotech
A gentle botanical extract with antioxidant potential, but research on its skincare benefits is still limited.
Irritation
low
Source
natural
A gentle plant extract with antioxidant potential, but research on its skincare benefits is still limited.
Irritation
low
Source
natural
A gentle, antioxidant-rich flower extract with limited research but a good safety profile for most skin types.
Irritation
low
Source
natural
A gentle, antioxidant-rich botanical extract that may help protect skin from environmental stress and soothe minor irritation.
Irritation
low
Source
natural
Skin conditioning agent
Human Buffy Coat Cell Conditioned Media
A cutting-edge, biotech-derived ingredient that delivers a cocktail of growth factors and cytokines to support skin repair, but human-source ingredients raise ethical and regulatory questions.
Irritation
low
Source
biotech
A human-derived protein that helps hydrate and temporarily plump the skin, but its benefits are not well-studied in cosmetics and sourcing raises ethical questions.
Irritation
low
Source
biotech
Humic acids are gentle, antioxidant-rich compounds from ancient plant deposits that may help protect skin from environmental stress, but research is still early.
Irritation
low
Source
natural
A gentle, antioxidant-rich wood extract that may help protect skin from environmental stress, but research is limited.
Irritation
low
Source
natural
Huon Pine Wood Oil adds a distinctive woody fragrance to products but has limited research on skin benefits and may cause irritation in sensitive individuals.
Irritation
moderate
Source
natural
Hyacinth Extract adds a pleasant floral scent to products but has limited proven skincare benefits beyond fragrance.
Irritation
moderate
Source
natural
A fragrant flower extract with mild antioxidant potential, but limited research and a moderate risk of skin irritation for sensitive types.
Irritation
moderate
Source
natural
A gentle plant extract with antioxidant potential, but research on its specific benefits for skin is still limited.
Irritation
low
Source
natural
A gentle botanical extract that may help calm redness and support the skin's moisture barrier, though research is still early.
Irritation
low
Source
natural
A modern hybrid of hyaluronic acid and a peptide that aims to hydrate and support skin firmness, but research is still limited.
Irritation
low
Source
biotech
Hyaluronic acid is a superstar hydrator that holds up to 1,000 times its weight in water, making it a go-to for plumping and smoothing skin without clogging pores.
Irritation
low
Source
biotech
A more stable, longer-lasting version of hyaluronic acid that clings to the skin's surface for sustained hydration without the sticky feel.
Irritation
low
Source
semi-synthetic
A fermented form of hyaluronic acid that may offer better absorption and hydration than standard hyaluronic acid.
Irritation
low
Source
biotech
A gentle, biotech-derived humectant that combines the hydrating power of hyaluronic acid with potential skin-soothing benefits from fermentation.
Irritation
low
Source
biotech
Humectant
Hyaluronic Acid/Polyglutamic Acid Crosspolymer
A next-generation humectant that binds more water and stays on skin longer than standard hyaluronic acid.
Irritation
low
Source
semi-synthetic
Hyaluronidase is an enzyme that breaks down hyaluronic acid in the skin, which can temporarily increase ingredient absorption but also risks irritation and moisture loss.
Irritation
moderate
Source
biotech
A lab-grown hybrid plant cell extract that may offer antioxidant and soothing benefits, but research is still early.
Irritation
low
Source
biotech
A mild, fragrant rose extract that can help calm skin and provide antioxidant protection, but its benefits are largely from the whole flower complex rather than a single active.
Irritation
low
Source
natural
A traditional emollient oil with moisturizing benefits, but limited modern research and a moderate chance of clogging pores for some skin types.
Irritation
low
Source
natural
A mild botanical extract that may help calm skin and provide antioxidant support, but research is still early.
Irritation
low
Source
natural
A gentle botanical extract that may help calm skin and fight free radicals, but research is still early.
Irritation
low
Source
natural
A gentle botanical extract with antioxidant and soothing potential, though research on its cosmetic benefits is still limited.
Irritation
low
Source
natural
A gentle, antioxidant-rich plant extract that may help calm skin and fight environmental stress, though research is still emerging.
Irritation
low
Source
natural
Hydrated silica is a gentle, mineral-based abrasive that polishes teeth and exfoliates skin without harshness, but overuse can wear down enamel or irritate sensitive skin.
Irritation
low
Source
natural
Hydratropic alcohol adds a mild floral scent and helps preserve formulas, but it can be irritating for sensitive skin at higher concentrations.
Irritation
moderate
Source
synthetic