A gentle, silicone-based ingredient that helps skin feel smooth and hydrated without clogging pores.
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, silicone-based ingredient that helps skin feel smooth and hydrated without clogging pores.
Irritation
low
Source
semi-synthetic
A silicone powder that gives a silky, blurring finish and helps control shine without clogging pores.
Irritation
low
Source
synthetic
A mild, amino-acid-based surfactant that cleanses without stripping the skin, making it ideal for sensitive or dry skin types.
Irritation
low
Source
semi-synthetic
A gentle, non-greasy emollient that helps soften and condition skin while supporting the skin's natural moisture barrier.
Irritation
low
Source
semi-synthetic
Pea callus extract is a gentle, plant-derived antioxidant that may help protect skin from environmental stress and support a more even tone.
Irritation
low
Source
natural
Pea Palmitate is a gentle, plant-based emollient that helps moisturize and soften skin without clogging pores.
Irritation
low
Source
natural
Skin conditioning agent
Pisum Sativum (Pea) Phytoplacenta Conditioned Media
A gentle, plant-derived ferment that mimics the regenerative properties of animal placenta without the ethical or safety concerns.
Irritation
low
Source
biotech
A gentle, plant-derived extract that may help calm skin and fight free radical damage, though research is still emerging.
Irritation
low
Source
natural
Conditioning Agent
CETEARAMIDOETHYL DIETHONIUM ISOSTEAROYL HYDROLYZED PEA PROTEIN
A mild, protein-based conditioning ingredient that helps hair feel soft and manageable without heavy buildup.
Irritation
low
Source
semi-synthetic
Pea sprout extract is a gentle, antioxidant-rich ingredient that helps calm skin and support a youthful appearance without irritation.
Irritation
low
Source
natural
A gentle, lab-grown pea extract that helps skin defend against environmental stress and maintain a youthful appearance.
Irritation
low
Source
biotech
A gentle, antioxidant-rich extract from peach buds that may help soothe and protect skin, but research is still emerging.
Irritation
low
Source
natural
A gentle, lab-grown peach cell extract that may help protect skin from environmental stress, but research is still early.
Irritation
low
Source
biotech
A gentle, antioxidant-rich extract from peach callus cells that may help soothe and protect skin, though research is still emerging.
Irritation
low
Source
natural
Peach flower powder offers gentle physical exfoliation with a touch of antioxidant activity, but research on its skincare benefits is still limited.
Irritation
low
Source
natural
Peach Fruit Extract is a gentle, antioxidant-rich ingredient that helps hydrate and soothe the skin, making it a nice addition to daily skincare routines.
Irritation
low
Source
natural
Peach gum is a gentle, plant-based film-former that helps skin feel smooth and hydrated, but research on its benefits is still emerging.
Irritation
low
Source
natural
Peach Kernel Extract is a gentle, nourishing emollient that helps soften and smooth skin without clogging pores.
Irritation
low
Source
natural
A gentle, non-greasy oil that hydrates and softens skin without clogging pores, making it a great choice for sensitive and oily skin types.
Irritation
low
Source
natural
A gentle, modified oil ester that softens skin without greasiness, ideal for sensitive and dry skin types.
Irritation
low
Source
semi-synthetic
Peach Leaf Extract is a gentle botanical antioxidant that may help calm skin and protect against environmental stress, though research is still emerging.
Irritation
low
Source
natural
A gentle, hydrating fruit juice with antioxidant potential, but research on its specific skincare benefits is still emerging.
Irritation
low
Source
natural
A natural, biodegradable exfoliant that gently buffs away dead skin cells without the environmental concerns of plastic microbeads.
Irritation
low
Source
natural
Peach Wood Extract is a gentle, antioxidant-rich botanical that may help soothe skin and protect against environmental stress, though research is still emerging.
Irritation
low
Source
natural
A gentle seaweed extract that helps calm irritation and support skin hydration, ideal for sensitive skin.
Irritation
low
Source
natural
Peanut flour can gently absorb oil and exfoliate, but it may clog pores and is not suitable for those with peanut allergies.
Irritation
low
Source
natural
A plant-based antioxidant extract that may help protect skin from environmental stress, but it carries a moderate risk of clogging pores and is a common allergen.
Irritation
low
Source
natural
Peanut Glycerides are gentle emollients that soften skin, but may be comedogenic for acne-prone individuals and are unsuitable for those with peanut allergies.
Irritation
low
Source
natural
A versatile emollient and emulsifier that helps products feel smooth, but may be comedogenic for acne-prone skin and is unsuitable for those with peanut allergy.
Irritation
low
Source
semi-synthetic
A plant cell culture extract that may offer antioxidant and soothing benefits, but research is still emerging.
Irritation
low
Source
biotech
A gentle antioxidant from peanut skins that may help protect skin from environmental stress, but research is still early and it's not a powerhouse ingredient.
Irritation
low
Source
natural
Peanutamide MEA is a foam booster and cleanser, but it may be mildly irritating and is not suitable for those with peanut allergies.
Irritation
moderate
Source
semi-synthetic
Peanutamide MIPA is a gentle conditioning agent that helps soften hair and skin, but it may not be suitable for those with peanut allergies or acne-prone skin.
Irritation
low
Source
semi-synthetic
A gentle probiotic ferment that exfoliates and hydrates without harsh acids, ideal for sensitive or reactive skin.
Irritation
low
Source
biotech
Pear flower extract is a mild, antioxidant-rich botanical that may help calm skin and fight free radical damage, but research is still early.
Irritation
low
Source
natural
Pear flower water is a gentle, lightly fragrant hydrosol that can refresh and soothe skin, but it lacks strong clinical evidence for specific benefits.
Irritation
low
Source
natural
A gentle, lab-grown pear extract that may help protect skin from environmental stress, but research is still early.
Irritation
low
Source
biotech
A gentle, plant-derived antioxidant that helps protect skin from environmental stress and supports a healthy-looking complexion.
Irritation
low
Source
biotech
Pear Fruit Extract is a gentle, hydrating ingredient that helps soothe and moisturize the skin, making it a good choice for sensitive or dry skin types.
Irritation
low
Source
natural
Pear fruit juice is a gentle, water-binding ingredient that adds light hydration and a touch of natural antioxidant activity to skincare formulas.
Irritation
low
Source
natural
Pear Seed Extract is a gentle, antioxidant-rich ingredient that helps protect skin from environmental stress while providing light hydration.
Irritation
low
Source
natural
A gentle, plant-based antioxidant that may help calm skin and defend against environmental stress, though research is still early.
Irritation
low
Source
natural
Pearl powder offers gentle physical exfoliation and a subtle glow, but its brightening and skin-repair claims are not strongly supported by independent research.
Irritation
low
Source
natural
Peat extract is a natural, mineral-rich ingredient with limited research, but early studies suggest it may help soothe and condition the skin.
Irritation
low
Source
natural
Pecan Seed Extract is a gentle, antioxidant-rich ingredient that may help protect skin from environmental stress, but research on its cosmetic benefits is still limited.
Irritation
low
Source
natural
A gentle, non-greasy oil rich in fatty acids and vitamin E that helps soften and protect the skin barrier.
Irritation
low
Source
natural
Pecan Shell Extract is a gentle, antioxidant-rich ingredient that may help protect skin from environmental stress, but research on its cosmetic benefits is still limited.
Irritation
low
Source
natural
A natural, biodegradable physical exfoliant, but the irregular particle shape can cause micro-tears if not finely milled.
Irritation
moderate
Source
natural
Pectin is a gentle, fruit-derived thickener and hydrator that helps stabilize formulas and adds a light, non-greasy feel to skincare products.
Irritation
low
Source
natural
A novel biotech peptide that may help strengthen the skin barrier and reduce fine lines, but research is still early.
Irritation
low
Source
biotech
Pectolinarin is a plant-derived flavonoid with antioxidant and soothing potential, but research in cosmetics is still early.
Irritation
low
Source
natural
A gentle, probiotic ingredient that helps support your skin's natural microbiome and improve barrier function.
Irritation
low
Source
biotech
Fragrance
Citrus Aurantium Dulcis (Orange) Peel Oil, Citrus Limon (Lemon) Peel Oil, Citrus Paradisi (Grapefruit) Peel Oil
Peel oils add a fresh citrus scent and mild antioxidant activity, but they can be irritating for sensitive skin and are primarily used for fragrance.
Irritation
moderate
Source
natural
Film Former
METHOXY PEG-100/EPSILON CAPROLACTONE/SEBACATE COPOLYMER
A synthetic polymer that helps products spread smoothly and stay put, with a low risk of irritation.
Irritation
low
Source
synthetic
A safe, synthetic thickener that improves product feel and stability without major skin concerns.
Irritation
low
Source
synthetic
A synthetic film former that helps products stay put and resist water, but it offers no active skincare benefit.
Irritation
low
Source
synthetic
A cutting-edge synthetic molecule that acts like a microscopic delivery truck, carrying active ingredients deeper into skin layers.
Irritation
low
Source
synthetic
A synthetic fluorinated ingredient that helps products feel silky and resist water, but its environmental persistence raises concerns.
Irritation
low
Source
synthetic
PEG Oleate is a common synthetic emulsifier that helps mix oil and water, but it may be slightly irritating for very sensitive skin.
Irritation
moderate
Source
synthetic
Film Former
DI-PEG-2 SOYAMINE/POLYDIETHYLENEGLYCOL ADIPATE/IPDI COPOLYMER
A synthetic polymer that helps products stay put and resist water, but offers no active skincare benefit.
Irritation
low
Source
synthetic