A lab-made peptide that aims to brighten skin and soften lines, but research is still early.
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 lab-made peptide that aims to brighten skin and soften lines, but research is still early.
Irritation
low
Source
synthetic
A synthetic peptide that aims to brighten skin and reduce fine lines by combining a kojic acid-like signal with a collagen-supporting peptide.
Irritation
low
Source
synthetic
A gentle, stabilized alternative to kojic acid that helps fade dark spots with less irritation risk.
Irritation
low
Source
semi-synthetic
A synthetic brightener with limited research; may help even skin tone but lacks strong safety and efficacy data.
Irritation
moderate
Source
synthetic
A synthetic tyrosinase inhibitor that may help fade dark spots, but research is limited and irritation is possible.
Irritation
moderate
Source
synthetic
A gentle, antioxidant-rich resin oil from a rare plant, best for soothing sensitive skin, but research is limited.
Irritation
low
Source
natural
A gentle, plant-derived gum that may help calm skin and create a light protective layer, but research is still limited.
Irritation
low
Source
natural
A gentle, fermented ingredient that hydrates and soothes skin, but its benefits are mostly anecdotal and backed by limited clinical research.
Irritation
low
Source
natural
Konjac root extract is a gentle, plant-based humectant that helps hydrate and soothe the skin without clogging pores.
Irritation
low
Source
natural
A gentle, natural exfoliant from konjac root that helps smooth skin without harsh scrubbing.
Irritation
low
Source
natural
A gentle, antioxidant-rich fruit extract that helps protect skin from environmental stress while offering mild soothing benefits.
Irritation
low
Source
natural
A gentle, antioxidant-rich oil that helps soothe and moisturize skin, but research on its specific benefits is still limited.
Irritation
low
Source
natural
A traditional plant extract with potential soothing benefits, but limited modern research and a need for cautious formulation due to its alkaloid content.
Irritation
moderate
Source
natural
A gentle, antioxidant-rich fruit extract that may help protect skin from environmental stress and support a more even tone.
Irritation
low
Source
natural
A fermented fruit extract that delivers antioxidants and gentle skin conditioning, but its benefits depend heavily on the fermentation process and formulation.
Irritation
low
Source
biotech
A gentle, antioxidant-rich fruit water that hydrates and soothes skin, but its benefits are largely from the water content and trace nutrients rather than a concentrated active.
Irritation
low
Source
natural
A gentle plant extract with antioxidant potential, but research on its topical benefits is still limited.
Irritation
low
Source
natural
A plant-based antioxidant from lab-grown cells that may help calm skin and fight free radical damage, but 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 human skin.
Irritation
low
Source
natural
A gentle, antioxidant-rich fruit extract that may help calm skin and fight environmental damage, though research is still early.
Irritation
low
Source
natural
A gentle, antioxidant-rich plant extract that may help calm and protect skin, though research is still early.
Irritation
low
Source
natural
A gentle, natural exfoliating powder from Korean fir leaves that also offers antioxidant benefits, but may cause irritation if particles are too large or used too frequently.
Irritation
moderate
Source
natural
Antioxidant
Kluyveromyces/Lactobacillus/Acanthopanax Koreanum Bark/Stem Oil Ferment Filtrate
A fermented botanical extract that may help calm irritation and defend against environmental stress, though human studies are limited.
Irritation
low
Source
biotech
Antioxidant
Acanthopanax Koreanum Adventitious Root Culture Extract
A lab-grown root extract that may help calm skin and fight free radicals, but human studies are limited.
Irritation
low
Source
biotech
Antioxidant
Angelica Acutiloba Root Extract, Paeonia Lactiflora Root Extract, Rehmannia Glutinosa Root Extract, Cnidium Officinale Rhizome Extract
A traditional herbal root blend that may offer antioxidant and soothing benefits, but clinical evidence on skin is limited.
Irritation
low
Source
natural
A rare botanical extract with potential antioxidant benefits, but limited research and a known toxicity concern in the raw plant family require careful processing and low concentrations.
Irritation
moderate
Source
natural
A gentle, plant-based antioxidant that may help protect skin from environmental stress, though research is still emerging.
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 botanical extract with antioxidant potential, but research is still early and benefits are not yet proven in human studies.
Irritation
low
Source
natural
A gentle plant extract with antioxidant potential, but research on its specific benefits 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 research is still early.
Irritation
low
Source
natural
A gentle, antioxidant-rich plant extract that may help calm skin and protect against environmental stress, though research is still emerging.
Irritation
low
Source
natural
A gentle botanical extract from Korean willow that may help calm irritated skin and provide antioxidant protection, though research is still emerging.
Irritation
low
Source
natural
A gentle, antioxidant-rich botanical extract that may help protect skin from environmental stress, though human research is still limited.
Irritation
low
Source
natural
A gentle, fermented black tea extract that offers antioxidant protection and soothing benefits, ideal for most skin types.
Irritation
low
Source
natural
Kousou Ekisu is a gentle botanical extract with antioxidant and soothing potential, but research is limited and it's best used as a supporting ingredient.
Irritation
low
Source
natural
A gentle herbal extract that may help calm skin and fight free radical damage, but research is mostly traditional and lab-based.
Irritation
low
Source
natural
A gentle botanical astringent that may help tighten pores and calm skin, but research is 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 plant extract with antioxidant potential, but research on its skincare benefits is still limited compared to more established ingredients.
Irritation
low
Source
natural
Kudzu Root Extract is a gentle botanical antioxidant that may help calm skin and fight free radical damage, but research on its cosmetic benefits is still limited.
Irritation
low
Source
natural
A traditional botanical root powder with antioxidant potential, but human skincare studies are limited.
Irritation
low
Source
natural
A gentle plant extract that may help calm skin and fight free radical damage, but research is still early.
Irritation
low
Source
natural
Kukui nut oil is a gentle, non-greasy plant oil that hydrates and softens skin without clogging pores, making it a good choice for dry or sensitive skin.
Irritation
low
Source
natural
A gentle, antioxidant-rich botanical extract from New Zealand, best for soothing and protecting skin, though research is still emerging.
Irritation
low
Source
natural
A gentle botanical root extract with traditional use for soothing skin, but modern cosmetic evidence is still limited.
Irritation
low
Source
natural
Kumquat fruit water is a gentle, antioxidant-rich ingredient that can help brighten and tone the skin, but research on its cosmetic benefits is still limited.
Irritation
low
Source
natural
A gentle botanical extract with antioxidant and soothing potential, though research is still emerging compared to more established plant extracts.
Irritation
low
Source
natural
Kunzea oil offers a pleasant, earthy scent and potential soothing benefits, but its essential oil nature means it can be irritating for sensitive skin and lacks strong research backing.
Irritation
moderate
Source
natural
A gentle, antioxidant-rich botanical extract from an Australian berry that may help protect skin from environmental stress and support a healthy-looking complexion.
Irritation
low
Source
natural
A gentle, antioxidant-rich fruit powder that may help soothe and protect skin, though research is still emerging.
Irritation
low
Source
natural
Kunzea seed oil is a gentle, non-greasy oil that helps soften skin and may offer mild antimicrobial benefits, but research is still limited.
Irritation
low
Source
natural
A gentle seaweed extract with antioxidant potential, but research is still early and benefits are not yet proven in human studies.
Irritation
low
Source
natural
A gentle botanical extract with antioxidant potential, but research is still emerging and benefits are not yet well-established in human skin.
Irritation
low
Source
natural
A gentle botanical extract that helps calm skin and fight environmental stress, but research is still emerging for cosmetic use.
Irritation
low
Source
natural
A traditional seed oil with good moisturizing potential, but limited modern research and a moderate chance of clogging pores for some skin types.
Irritation
low
Source
natural
A lab-grown plant extract that may help support skin firmness and radiance, but human research is still limited.
Irritation
low
Source
biotech
A plant-based ingredient with phytoestrogens that may support skin firmness and elasticity, but human studies are limited.
Irritation
low
Source
natural
Antioxidant
Pueraria Mirifica Root Powder/Propylene Glycol Ferment Filtrate
A fermented botanical extract with promising antioxidant properties, but research is still early and benefits are not yet well-established.
Irritation
low
Source
natural
A gentle herbal extract with antioxidant potential, but research is limited and benefits are not well-documented in Western skincare.
Irritation
low
Source
natural