A gentle, plant-derived emulsifier that helps blend water and oil in skincare formulas while leaving skin feeling soft.
Irritation
low
Source
semi-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 gentle, plant-derived emulsifier that helps blend water and oil in skincare formulas while leaving skin feeling soft.
Irritation
low
Source
semi-synthetic
A gentle, water-soluble form of vitamin E that helps protect skin from environmental damage without clogging pores.
Irritation
low
Source
semi-synthetic
A synthetic humectant that helps keep skin hydrated and improves product texture, but offers no unique benefits over more common alternatives.
Irritation
low
Source
synthetic
A gentle, synthetic humectant that helps hydrate skin without clogging pores or causing irritation.
Irritation
low
Source
synthetic
A reliable synthetic emulsifier that helps keep your products stable and creamy, but offers no direct skin benefit on its own.
Irritation
low
Source
synthetic
A gentle, synthetic humectant that attracts moisture to the skin without the sticky feel of glycerin.
Irritation
low
Source
synthetic
A mild, water-soluble emollient that softens skin and improves product feel without clogging pores.
Irritation
low
Source
semi-synthetic
A gentle, semi-synthetic ingredient that helps products feel smooth and spread easily without clogging pores.
Irritation
low
Source
semi-synthetic
A safe, effective emulsifier that helps your skincare products feel smooth and stay stable, but it offers no direct skin benefit on its own.
Irritation
low
Source
synthetic
A reliable synthetic emulsifier that helps keep your product smooth and stable, but offers no direct skin benefit.
Irritation
low
Source
synthetic
A workhorse emulsifier that helps oil and water mix in your skincare, generally well-tolerated but purely synthetic.
Irritation
low
Source
synthetic
A reliable synthetic emulsifier that helps mix oil and water in your products, but it's not a star ingredient with direct skin benefits.
Irritation
low
Source
synthetic
A mild synthetic surfactant that helps products foam and rinse cleanly, generally well-tolerated but not a star active ingredient.
Irritation
low
Source
synthetic
A synthetic conditioning ingredient that helps reduce static and soften hair, but may cause buildup with frequent use.
Irritation
low
Source
synthetic
A gentle synthetic emollient that softens skin and improves product texture without common irritation or clogging concerns.
Irritation
low
Source
synthetic
A gentle synthetic emulsifier that helps cleanse without stripping the skin, but offers no active skincare benefits.
Irritation
low
Source
synthetic
A gentle, synthetic humectant that attracts moisture to the skin without common irritation or clogging.
Irritation
low
Source
synthetic
A synthetic emollient that helps products feel silky and spread easily, with a low risk of irritation.
Irritation
low
Source
synthetic
A synthetic emulsifier that helps mix water and oil in products, generally considered safe and low-irritation for most skin types.
Irritation
low
Source
synthetic
A synthetic emulsifier that helps products spread and rinse cleanly, but may cause mild irritation for sensitive skin.
Irritation
moderate
Source
synthetic
A lightweight synthetic emollient that improves product feel and spreadability without clogging pores.
Irritation
low
Source
synthetic
A synthetic thickener that helps create a smooth, stable texture in creams and lotions, but offers no active skin benefits.
Irritation
low
Source
synthetic
A gentle synthetic ingredient that helps blend water and oil in formulas while leaving skin feeling smooth.
Irritation
low
Source
synthetic
A gentle, coconut-derived emulsifier that helps blend oil and water in skincare formulas without stripping the skin.
Irritation
low
Source
semi-synthetic
A gentle plant extract with antioxidant potential, but research is limited—best as a supporting ingredient in soothing formulations.
Irritation
low
Source
natural
Pregnadienol is a synthetic steroid-like ingredient that may help smooth skin, but its safety and effectiveness are not well-established by independent research.
Irritation
moderate
Source
synthetic
A gentle Ayurvedic root extract with antioxidant and soothing potential, but research in cosmetic use is still limited.
Irritation
low
Source
natural
Prenol is a synthetic alcohol used mainly as a solvent or fragrance component; it has little to no proven skincare benefit and may cause irritation in sensitive individuals.
Irritation
moderate
Source
synthetic
Prenyl acetate is a synthetic fragrance ingredient that adds a fruity, floral note to products, but it offers no skincare benefits and may cause sensitivity in some individuals.
Irritation
low
Source
synthetic
Prenyl benzoate is a synthetic fragrance ingredient with a low irritation risk, but it offers no skincare benefits beyond scent.
Irritation
low
Source
synthetic
A gentle botanical extract with antioxidant and soothing potential, though research is limited and it may cause sensitivity in rare cases.
Irritation
low
Source
natural
A gentle, lab-grown cactus extract that may help protect skin from environmental stress and support hydration.
Irritation
low
Source
biotech
A gentle, antioxidant-rich plant extract that helps soothe and hydrate skin, but its benefits are best supported by traditional use and preliminary studies rather than large-scale clinical trials.
Irritation
low
Source
natural
A gentle, plant-based extract that may help calm irritation and defend skin from environmental stress, though human studies are limited.
Irritation
low
Source
natural
A gentle, antioxidant-rich cactus extract that helps hydrate and protect skin without irritation.
Irritation
low
Source
natural
A gentle, antioxidant-rich fruit extract that helps hydrate and soothe the skin without clogging pores.
Irritation
low
Source
natural
A gentle, water-based extract that provides hydration and antioxidant protection, especially suitable for dry or sensitive skin.
Irritation
low
Source
natural
A gentle, antioxidant-rich water that hydrates and soothes the skin without clogging pores.
Irritation
low
Source
natural
A gentle, antioxidant-rich extract from prickly pear cactus that may help protect skin from environmental stress and soothe irritation.
Irritation
low
Source
biotech
A gentle, plant-based hydrator with antioxidant benefits, ideal for dry or sensitive skin types.
Irritation
low
Source
natural
A gentle, water-rich humectant that hydrates and soothes skin with antioxidant support, ideal for sensitive or dehydrated skin types.
Irritation
low
Source
natural
A luxurious, non-greasy oil rich in vitamin E and essential fatty acids that hydrates and soothes without clogging pores.
Irritation
low
Source
natural
A gentle, plant-based hydrator with antioxidant benefits, ideal for dry or sensitive skin types.
Irritation
low
Source
natural
A gentle, antioxidant-rich plant water that hydrates and soothes skin without clogging pores.
Irritation
low
Source
natural
A gentle, plant-derived antioxidant that may help calm skin and fight free radicals, but research is still early.
Irritation
low
Source
natural
A gentle, plant-based oil that helps soften and soothe the skin, though research on its specific benefits 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, antioxidant-rich seed extract from a Himalayan shrub that helps soothe and nourish the skin without irritation.
Irritation
low
Source
natural
A gentle, non-greasy plant oil that hydrates and soothes without clogging pores—great for sensitive or oily skin types.
Irritation
low
Source
natural
Pristane is a lightweight, non-greasy oil that softens skin and helps other ingredients absorb, but its use is limited by sourcing and cost.
Irritation
low
Source
natural
A gentle, antioxidant-rich plant extract that may help protect skin from environmental stress, though human studies are limited.
Irritation
low
Source
natural
A gentle botanical extract with antioxidant potential, but research on its specific benefits for skin is still limited.
Irritation
low
Source
natural
A gentle synthetic ingredient that may help condition skin and hair while offering antioxidant support, but research is still limited.
Irritation
low
Source
synthetic
Proline is a gentle, hydrating amino acid that supports skin structure and moisture retention.
Irritation
low
Source
natural
A synthetic peptide that may help reduce signs of aging and calm skin, but research is still emerging.
Irritation
low
Source
synthetic
A gentle, fermented bacterial filtrate that may help calm skin and support a balanced microbiome, though research is still early.
Irritation
low
Source
biotech
Propagermanium is a synthetic antioxidant that may help calm skin and fight free radicals, but research is still early and it is not widely used.
Irritation
low
Source
synthetic
Propane is a common aerosol propellant that helps dispense products like dry shampoos and setting sprays, but it offers no direct skin benefit.
Irritation
low
Source
synthetic
A mild synthetic exfoliant that helps smooth skin and improve radiance, but research is still limited compared to AHAs like glycolic acid.
Irritation
moderate
Source
synthetic
Propanediol is a gentle, plant-based alternative to propylene glycol that hydrates the skin and helps other ingredients work better.
Irritation
low
Source
natural