A gentle plant-based antioxidant that may help protect skin from environmental stress, though 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-based antioxidant that may help protect skin from environmental stress, though research is still limited.
Irritation
low
Source
natural
A natural physical exfoliant that sloughs off dead skin cells, but can be too harsh for sensitive or acne-prone skin.
Irritation
moderate
Source
natural
Walnut shell powder is a natural physical exfoliant, but its irregular, sharp particles can cause micro-tears in the skin, making it a controversial choice for sensitive or acne-prone skin.
Irritation
moderate
Source
natural
Walnut Wood Extract offers antioxidant and astringent benefits, but research on its specific effects in skincare is still limited.
Irritation
low
Source
natural
A gentle botanical extract with antioxidant potential, but research is still early—think of it as a supportive ingredient rather than a star player.
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 botanical extract with antioxidant and soothing potential, though research is still early and benefits are not yet proven in human studies.
Irritation
low
Source
natural
A gentle, antioxidant-rich fermented botanical that may help protect skin from environmental stress while supporting a healthy microbiome.
Irritation
low
Source
biotech
A gentle, antioxidant-rich Australian botanical extract that may help protect skin from environmental stress, though research is still emerging.
Irritation
low
Source
natural
Antioxidant
Wasabia Japonica Root/Brassica (Juncea/Oleracea Capitata/Oleracea Italica/Oleracea Botrytis/Oleracea Acephala) Sprout Extract
A plant-powered antioxidant blend that may help calm skin and defend against environmental stress, though human studies are limited.
Irritation
low
Source
natural
Wasabi root extract offers antioxidant and antimicrobial benefits, but research on its topical effects is still emerging.
Irritation
low
Source
natural
A fermented wasabi root extract that may offer antioxidant and soothing benefits, though research is still emerging.
Irritation
low
Source
biotech
Wasabi root powder brings antimicrobial and anti-inflammatory benefits to skincare, but its potency means it's best used in low concentrations to avoid irritation.
Irritation
moderate
Source
natural
A gentle, antioxidant-rich wasabi extract that may help soothe skin and fight environmental stress, though research is still early.
Irritation
low
Source
natural
A gentle, antioxidant-rich flower extract that may help calm skin and defend against environmental stress, though research is still early.
Irritation
low
Source
natural
A gentle, plant-based oil that helps soften and smooth skin, though research on its specific benefits is still limited.
Irritation
low
Source
natural
A gentle botanical extract with antioxidant and soothing potential, but research is limited and benefits are not yet well-established.
Irritation
low
Source
natural
A gentle plant extract that may help calm skin and provide antioxidant support, though research is still limited.
Irritation
low
Source
natural
A gentle, antioxidant-rich plant extract that may help calm and protect skin, though research is still emerging.
Irritation
low
Source
natural
A gentle, plant-based antioxidant that may help protect skin from environmental stress, though research is still early.
Irritation
low
Source
natural
A gentle herbal extract with antioxidant potential, but research is limited and it's not a standout ingredient.
Irritation
low
Source
natural
A gentle botanical extract that may help calm skin and provide antioxidant support, though research is still emerging.
Irritation
low
Source
natural
A gentle, plant-based antioxidant that may help calm skin and fight free radical damage, though research is still early.
Irritation
low
Source
natural
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
A gentle botanical extract that may help calm skin and provide antioxidant support, but research is limited.
Irritation
low
Source
natural
Water mint leaf oil adds a fresh, herbal scent and mild skin-conditioning benefits, but can be irritating for sensitive skin due to its essential oil content.
Irritation
moderate
Source
natural
Water mint oil adds a fresh scent and mild antimicrobial benefits, but can be irritating for sensitive skin at high concentrations.
Irritation
moderate
Source
natural
Water Spinach Oil is a gentle, antioxidant-rich plant oil that hydrates and protects skin, but research on its cosmetic benefits is still limited.
Irritation
low
Source
natural
Watermelon fruit juice is a gentle, hydrating ingredient that adds a light dose of antioxidants and a refreshing feel to skincare products.
Irritation
low
Source
natural
A gentle, antioxidant-rich extract that helps protect skin from environmental stress while providing lightweight hydration.
Irritation
low
Source
natural
A gentle, water-friendly emollient that softens skin without a greasy feel, suitable for most skin types.
Irritation
low
Source
semi-synthetic
A mild, eco-friendly emulsifier that helps blend oil and water in skincare while adding a touch of nourishment from watermelon seed oil.
Irritation
low
Source
semi-synthetic
A mild, eco-friendly emulsifier that helps blend water and oil in formulas while adding a touch of skin-softening hydration.
Irritation
low
Source
semi-synthetic
A gentle plant extract with antioxidant potential, but research is still early and benefits are not yet proven in human studies.
Irritation
low
Source
natural
Welan gum is a gentle, plant-derived thickener that improves product texture and stability without clogging pores or irritating skin.
Irritation
low
Source
natural
A gentle botanical extract with antioxidant potential, but research on its cosmetic benefits 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 plant extract with antioxidant potential, but research on its skin benefits is still limited.
Irritation
low
Source
natural
A gentle, antioxidant-rich botanical extract from turmeric relatives that may help calm skin and fight free radicals.
Irritation
low
Source
natural
A gentle flower extract with antioxidant potential, but research is limited and it's not a skincare powerhouse.
Irritation
low
Source
natural
A gentle botanical extract with antioxidant and soothing potential, but research is limited and benefits are not yet well-established.
Irritation
low
Source
natural
A natural, gentle exfoliating powder from tree bark that may also provide antioxidant benefits, but research on its specific skincare effects is limited.
Irritation
low
Source
natural
A fragrant tree oil with some antimicrobial potential, but limited research and a moderate risk of skin irritation mean it's best used in low concentrations and avoided by sensitive skin.
Irritation
moderate
Source
natural
A fragrant wood oil with some antimicrobial potential, but limited research on skin benefits and a moderate risk of irritation for sensitive skin.
Irritation
moderate
Source
natural
Whale oil is an outdated ingredient with ethical and sustainability issues; modern plant-based oils offer safer and more responsible alternatives.
Irritation
low
Source
natural
Wheat bran is a gentle, natural exfoliant that also helps absorb excess oil, but it may not suit those with gluten sensitivity or very dry skin.
Irritation
low
Source
natural
A gentle, antioxidant-rich extract that helps protect skin from environmental stress while soothing irritation.
Irritation
low
Source
natural
A gentle, plant-derived surfactant that cleanses effectively while being kind to sensitive skin.
Irritation
low
Source
natural
A mild, wheat-derived surfactant that cleanses without stripping the skin, ideal for sensitive or dry skin types.
Irritation
low
Source
natural
A gentle, plant-derived lipid that helps replenish the skin barrier and lock in moisture without clogging pores.
Irritation
low
Source
natural
A gentle, plant-derived extract that helps calm skin and support the moisture barrier, but research on its benefits is still limited.
Irritation
low
Source
natural
A gentle, fermented ingredient that may help calm irritation and support the skin barrier, though research is still emerging.
Irritation
low
Source
biotech
A gentle, plant-derived emollient that helps soften and smooth the skin without clogging pores.
Irritation
low
Source
natural
Wheat germ is a natural emollient rich in vitamin E and fatty acids, great for dry skin but may be too heavy for oily or acne-prone types.
Irritation
low
Source
natural
Conditioning agent
Wheat Germamidopropyldimonium Hydroxypropyl Hydrolyzed Oat Protein
A gentle conditioning protein that helps strengthen hair and lightly moisturize skin without heavy buildup.
Irritation
low
Source
semi-synthetic
A gentle emollient and emulsifier that helps soften skin and stabilize formulas, but its palm oil sourcing raises sustainability questions.
Irritation
low
Source
semi-synthetic
Wheat Germ Extract is a gentle, antioxidant-rich ingredient that helps nourish and protect the skin, but those with gluten sensitivity should check product labels.
Irritation
low
Source
natural
A gentle, plant-derived emollient that helps replenish the skin barrier and lock in moisture without feeling greasy.
Irritation
low
Source
natural
A nourishing, antioxidant-rich oil that deeply moisturizes but may clog pores for some skin types.
Irritation
low
Source
natural
A gentle, semi-synthetic emollient that softens skin without feeling greasy, ideal for sensitive and dry skin types.
Irritation
low
Source
semi-synthetic