A gentle, non-stripping surfactant that effectively cleanses without disrupting the skin barrier, ideal for sensitive or dry skin.
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, non-stripping surfactant that effectively cleanses without disrupting the skin barrier, ideal for sensitive or dry skin.
Irritation
low
Source
natural
A synthetic polymer that helps products stay put and feel smooth, but offers no direct skin benefit.
Irritation
low
Source
synthetic
A lightweight, non-greasy emollient that softens skin without clogging pores, with a touch of hemp-derived fatty acid benefits.
Irritation
low
Source
semi-synthetic
A lightweight synthetic emollient that softens skin without a greasy feel, generally well-tolerated and non-comedogenic.
Irritation
low
Source
synthetic
A lightweight, non-greasy emollient that softens skin without clogging pores.
Irritation
low
Source
synthetic
A lightweight, non-greasy emollient derived from jojoba oil that softens skin without clogging pores.
Irritation
low
Source
natural
A lightweight, non-greasy emollient that hydrates and softens skin while being gentle enough for sensitive and acne-prone types.
Irritation
low
Source
natural
A synthetic preservative booster with limited safety data; best reserved for rinse-off products if used at all.
Irritation
moderate
Source
synthetic
A lightweight synthetic emollient that helps products glide on smoothly without a greasy feel, generally well-tolerated by most skin types.
Irritation
low
Source
synthetic
Decyl Myristate is a lightweight emollient that softens skin, but it may clog pores for those prone to breakouts.
Irritation
low
Source
synthetic
Decyl Oleate is a silky, non-greasy emollient that helps moisturizers spread easily, but it may clog pores for acne-prone skin.
Irritation
low
Source
semi-synthetic
A gentle, olive-derived emollient that hydrates and smooths skin without clogging pores, ideal for sensitive and oily skin types.
Irritation
low
Source
natural
Decyl Palmitate is a lightweight, non-greasy emollient that softens skin and improves product texture, with a low risk of irritation or clogged pores.
Irritation
low
Source
synthetic
Dispersing Agent
DECYL POLYSTYRENE OXIDE/PEG-23 COPOLYMER PHOSPHATE
A synthetic dispersant that helps pigments spread evenly and stay stable in makeup and sunscreen.
Irritation
low
Source
synthetic
A lightweight, non-greasy emollient that hydrates and softens skin with a silky finish.
Irritation
low
Source
synthetic
Decyl Succinate is a gentle, lightweight emollient that helps soften skin and improve product feel without clogging pores.
Irritation
low
Source
semi-synthetic
A synthetic emollient that helps products spread smoothly and resist wash-off, but lacks extensive safety data in cosmetics.
Irritation
low
Source
synthetic
A gentle surfactant that helps create rich foam and thicken formulas without stripping the skin.
Irritation
low
Source
synthetic
Decylene Glycol is a gentle, multi-tasking ingredient that hydrates, softens skin, and helps preserve formulas without harsh preservatives.
Irritation
low
Source
synthetic
A synthetic preservative booster that helps keep products fresh and stable, generally considered safe at low concentrations.
Irritation
low
Source
synthetic
Decyloxyacetaldehyde is a synthetic ingredient that may help improve skin texture, but research is limited and it can be irritating for sensitive skin.
Irritation
moderate
Source
synthetic
A gentle synthetic fatty acid that softens skin and improves product feel without common irritation.
Irritation
low
Source
synthetic
A gentle, non-greasy emollient that softens skin and improves product texture without clogging pores.
Irritation
low
Source
synthetic
A gentle synthetic emulsifier that helps mix water and oil in your skincare products without causing irritation or clogging pores.
Irritation
low
Source
synthetic
A gentle synthetic emulsifier that helps create stable, creamy formulas without common irritation.
Irritation
low
Source
synthetic
A gentle synthetic emulsifier that helps mix oil and water in products, with a low risk of irritation or clogged pores.
Irritation
low
Source
synthetic
A gentle, high-performance emulsifier that helps create stable, luxurious creams without common irritation concerns.
Irritation
low
Source
semi-synthetic
A gentle, high-performance emulsifier that helps create stable, creamy textures without common irritation concerns.
Irritation
low
Source
semi-synthetic
A gentle synthetic emulsifier that helps create stable, creamy textures without common irritation concerns.
Irritation
low
Source
synthetic
A mild, effective emulsifier that helps water and oil mix without stripping the skin, making it a good choice for sensitive skin formulas.
Irritation
low
Source
synthetic
A gentle synthetic emulsifier that helps mix water and oil in skincare products without common irritation.
Irritation
low
Source
synthetic
A lightweight, non-greasy emollient that helps soften and smooth skin without clogging pores.
Irritation
low
Source
synthetic
A lightweight synthetic emollient that helps skin feel smooth and soft without clogging pores.
Irritation
low
Source
synthetic
A gentle surfactant that helps create rich foam and improves cleansing without stripping the skin.
Irritation
low
Source
synthetic
DEDM Hydantoin is an effective preservative but may cause irritation for sensitive skin, especially at higher concentrations.
Irritation
moderate
Source
synthetic
A mild synthetic surfactant that helps foaming and cleansing, but may cause irritation for sensitive skin.
Irritation
moderate
Source
synthetic
Skin conditioning agent
Deer Antler Blood/Cell Culture Conditioned Media
A novel biotech ingredient with potential regenerative benefits, but human evidence is very limited and ethical sourcing is a concern.
Irritation
low
Source
biotech
Anti-aging agent
DEER ANTLER CELL/SH-POLYPEPTIDE-1 CONDITIONED MEDIA
A novel biotech ingredient with promising anti-aging potential, but human research is still limited.
Irritation
low
Source
biotech
Skin conditioning
Paecilomyces Japonica/Deer Antler Ferment Extract Filtrate
A novel fermented ingredient with promising antioxidant potential, but human skin research is very limited.
Irritation
low
Source
natural
Deer antler velvet extract is a trendy but poorly studied ingredient in skincare, with anecdotal anti-aging claims and significant ethical baggage.
Irritation
low
Source
natural
Deer blood extract is a niche ingredient with traditional use but minimal modern research to support its cosmetic benefits.
Irritation
moderate
Source
natural
Deer milk extract is a gentle, moisturizing ingredient with some soothing potential, but scientific evidence is limited and it may not be suitable for vegans.
Irritation
low
Source
natural
A novel biotech ingredient with promising regenerative potential, but human skincare evidence is still very limited.
Irritation
low
Source
biotech
A gentle, antioxidant-rich fruit extract that may help calm skin and protect against environmental stress.
Irritation
low
Source
natural
A protein-rich powder that can help condition skin and hair, but its benefits are not well-studied in modern cosmetics.
Irritation
low
Source
natural
A gentle, antioxidant-rich flower extract that may help calm skin, but research on its cosmetic 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 skin.
Irritation
low
Source
natural
A biotech ingredient that may support skin repair, but its benefits in a jar are not well proven and it's mostly used in professional or clinical settings.
Irritation
low
Source
biotech
This is a lab growth medium for cells, not a skincare ingredient you apply directly—its presence on a label usually means it's a trace residue from biotech production.
Irritation
low
Source
biotech
A biotech ingredient that provides a complex blend of nutrients to support skin cell function, but its benefits in finished products are still being studied.
Irritation
low
Source
biotech
Not applicable as a direct cosmetic ingredient
Defined Cell Culture Media 16
Defined Cell Culture Media 16 is a lab reagent for growing cells, not a proven skincare ingredient; its presence on a label may indicate a ferment or extract base, but direct skin benefits are unsubstantiated.
Irritation
low
Source
biotech
Defined Cell Culture Media 2 is a lab-grade nutrient solution for growing cells, not a proven skincare ingredient for direct consumer use.
Irritation
low
Source
biotech
A cutting-edge biotech ingredient that nourishes skin cells with a tailored nutrient mix, but its novelty means long-term data is still limited.
Irritation
low
Source
biotech
This is a lab tool, not a skincare ingredient you apply—it helps grow cells that may later create cosmetic actives.
Irritation
low
Source
biotech
A lab-grown nutrient cocktail that may support skin cell health, but its benefits in skincare are still being explored and it's not a proven anti-aging ingredient.
Irritation
low
Source
biotech
A lab-grown nutrient cocktail that may support skin cell health, but research is still early and the ingredient is not yet widely studied in cosmetics.
Irritation
low
Source
biotech
This is a lab-grade cell culture medium, not a proven cosmetic ingredient—its role in skincare is experimental and lacks safety data for topical use.
Irritation
low
Source
biotech
A widely used, low-irritation preservative that helps keep your skincare products safe from bacteria and mold.
Irritation
low
Source
synthetic
Dehydrolatanoprost is a synthetic ingredient that can help eyelashes appear longer and fuller, but it may cause eye irritation and other side effects.
Irritation
moderate
Source
synthetic
A gentle, effective thickener that improves product texture without clogging pores or irritating skin.
Irritation
low
Source
biotech