A gentle, plant-derived extract with soothing and antioxidant potential, but research is still early.
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 extract with soothing and antioxidant potential, but research is still early.
Irritation
low
Source
natural
Sericoside is a gentle plant extract that may help calm skin and support a youthful appearance, but research is still early.
Irritation
low
Source
natural
A gentle, aromatic floral water that offers mild soothing and antioxidant benefits, but research on its specific skincare effects is still limited.
Irritation
low
Source
natural
A gentle, plant-derived water that may help calm irritation and provide antioxidant protection, but research is still early.
Irritation
low
Source
natural
Soothing agent
LENTINUS EDODES/LICORICE ROOT EXTRACT FERMENT FILTRATE
A gentle fermented blend that may help calm skin and provide antioxidant support, though research is still emerging.
Irritation
low
Source
natural
A synthetic peptide that aims to calm skin reactivity and reduce the look of redness, but clinical evidence is still limited.
Irritation
low
Source
synthetic
A gentle, plant-based powder that may help calm irritation and support skin hydration, though human studies are limited.
Irritation
low
Source
natural
A gentle, fermented ingredient that may help calm and hydrate skin, but research is still limited.
Irritation
low
Source
biotech
Silkworm frass is a novel, natural ingredient with antioxidant potential, but research is limited and it may not be widely available.
Irritation
low
Source
natural
Slippery elm bark extract is a gentle, mucilage-rich botanical that forms a protective film on the skin, helping to soothe irritation and lock in moisture.
Irritation
low
Source
natural
Smilo Grass Extract is a gentle, plant-based ingredient that may help calm irritated skin and provide antioxidant support, though research is still emerging.
Irritation
low
Source
natural
A gentle, vitamin B5 derivative that helps calm irritation and support the skin barrier without clogging pores.
Irritation
low
Source
semi-synthetic
A gentle, synthetic ingredient that helps calm skin sensitivity and reduce visible redness.
Irritation
low
Source
synthetic
A gentle plant extract with soothing and antioxidant potential, though research is still emerging.
Irritation
low
Source
natural
A gentle plant extract that may help calm and hydrate skin, but research is still early.
Irritation
low
Source
natural
A gentle, plant-based extract that may help calm irritated skin and support hydration, though scientific evidence is still emerging.
Irritation
low
Source
natural
A gentle plant extract with early evidence of soothing and antioxidant benefits, but more research is needed to confirm its efficacy in skincare.
Irritation
low
Source
natural
A gentle, natural extract from sphagnum moss that may help calm irritated skin and provide light hydration, but research is still early.
Irritation
low
Source
natural
A mild, plant-based water that may help calm and hydrate skin, but research is limited.
Irritation
low
Source
natural
A gentle, synthetic ingredient that mimics natural bile acids to calm redness and support a healthy skin barrier.
Irritation
low
Source
synthetic
A gentle, oil-friendly licorice derivative that helps calm redness and soothe sensitive skin without irritation.
Irritation
low
Source
semi-synthetic
A gentle botanical extract with antioxidant potential, but research is limited and benefits are not yet well-established.
Irritation
low
Source
natural
A gentle, plant-based extract that may help calm skin and provide a light protective film, though research is still emerging.
Irritation
low
Source
natural
A gentle, plant-based powder that may help calm skin and fight free radicals, but research is still early.
Irritation
low
Source
natural
Skin conditioning agent
STREPTOMYCES AVERMITILIS/SOYBEAN EXTRACT FERMENT FILTRATE
A gentle, biotech-derived ferment that may help calm and condition the skin, though research is still emerging.
Irritation
low
Source
biotech
A biotech ferment extract with early research suggesting soothing benefits, but human studies are limited.
Irritation
low
Source
biotech
A gentle, biotech-derived ingredient that may help calm and support the skin barrier, but research is still emerging.
Irritation
low
Source
biotech
A gentle, biotech-derived ferment that may help calm irritation and support a balanced skin microbiome, though human research is still limited.
Irritation
low
Source
biotech
A bacterial extract with promising anti-inflammatory potential, but research is still early and mostly lab-based.
Irritation
low
Source
biotech
Strontium acetate can help calm reactive skin by temporarily blocking nerve signals that cause stinging or burning, but it is not a treatment for underlying skin conditions.
Irritation
low
Source
synthetic
Strontium chloride is a gentle mineral salt that helps calm irritated skin and reduce redness, making it a solid choice for sensitive skin formulas.
Irritation
low
Source
synthetic
Strontium chloride hexahydrate is a mineral salt that can help calm reactive skin by temporarily reducing the sensation of stinging, itching, or flushing.
Irritation
low
Source
synthetic
Strontium hydroxide can help calm irritated skin by temporarily blocking nerve signals, but it is not a moisturizer or treatment for underlying skin conditions.
Irritation
low
Source
synthetic
A gentle, antioxidant-rich extract that helps soothe and moisturize skin, but its benefits are best supported by traditional use rather than extensive clinical studies.
Irritation
low
Source
natural
A gentle botanical extract with soothing potential, but limited clinical evidence for specific skincare benefits.
Irritation
low
Source
natural
A gentle botanical extract that may help calm skin and provide antioxidant support, but research is mostly lab-based.
Irritation
low
Source
natural
A natural balsam extract with soothing potential, but its fragrance components may irritate sensitive skin.
Irritation
moderate
Source
natural
A gentle, plant-based extract that helps calm irritation and provides antioxidant protection, but more human studies are needed to confirm its benefits.
Irritation
low
Source
natural
A gentle, plant-based extract that may help calm irritation and provide antioxidant protection, though research on its topical benefits is still limited.
Irritation
low
Source
natural
Tea tree leaf extract is a natural antimicrobial ingredient often used to help manage acne and soothe minor skin irritations, but it can be irritating at high concentrations.
Irritation
moderate
Source
natural
A gentle, biotech-derived ingredient from marine bacteria that may help calm skin and fight oxidative stress, though research is still early.
Irritation
low
Source
biotech
Teprenone is a synthetic ingredient that may help calm skin and support the skin barrier, but research in cosmetics is still emerging.
Irritation
low
Source
synthetic
Tetrahydropalmatine HCl is a plant alkaloid that may help calm skin, but research in cosmetics is still emerging.
Irritation
low
Source
natural
Soothing agent
FLAVOBACTERIUM THERMOPHILUM FERMENT FILTRATE LYSATE
A gentle, biotech ingredient from heat-loving bacteria that may help calm irritation and support the skin barrier.
Irritation
low
Source
biotech
A gentle amino-acid derivative that may help reduce visible skin reactivity and support a more even tone, though human data is still limited.
Irritation
low
Source
semi-synthetic
A gentle yeast extract that may help calm and condition the skin, but research is still emerging.
Irritation
low
Source
natural
Tounin Ekisu is a gentle, plant-based extract that may help calm irritated skin and provide light hydration, but research is limited.
Irritation
low
Source
natural
Tripeptide-36 is a lab-made peptide designed to help calm skin and reduce the look of redness and sensitivity.
Irritation
low
Source
synthetic
A gentle, licorice-derived ingredient that helps calm redness and irritation without clogging pores.
Irritation
low
Source
natural
A gentle, licorice-derived salt that calms redness and irritation without the side effects of pure licorice extract.
Irritation
low
Source
natural
Tulipalin A is a plant-derived compound with early research suggesting anti-inflammatory benefits, but its use in skincare is still emerging and requires caution due to potential irritation.
Irritation
moderate
Source
natural
A gentle, aromatic plant oil with antioxidant potential, best for calming sensitive skin.
Irritation
low
Source
natural
A gentle botanical extract from the Brazilian candeia tree that may help calm skin and fight free radicals, though research is still limited.
Irritation
low
Source
natural
A gentle, fragrant oil from the Candeia tree that may help calm skin and provide antioxidant support, but research is still limited.
Irritation
low
Source
natural
A synthetic ingredient that may help calm redness and even skin tone, but research is still early.
Irritation
low
Source
synthetic
A fermented plant extract that may help calm the skin and support a healthy microbiome, though human research is still limited.
Irritation
low
Source
biotech
A gentle, biotech-derived marine ferment that may help calm skin and support barrier function, though research is still emerging.
Irritation
low
Source
biotech
A gentle botanical extract with antioxidant and soothing potential, though research is still early and benefits are not yet proven in large human studies.
Irritation
low
Source
natural
A gentle blend of vitamin B12 and yeast peptides that may help calm and condition the skin, though research is still emerging.
Irritation
low
Source
mixed
A mild, water-based mint extract that adds a refreshing feel and subtle scent to products, but with limited research on specific skincare benefits.
Irritation
low
Source
natural