A gentle, biotech-derived ferment that may help calm skin and fight oxidative stress, but human research is still limited.
Irritation
low
Source
biotech
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, biotech-derived ferment that may help calm skin and fight oxidative stress, but human research is still limited.
Irritation
low
Source
biotech
Antioxidant
RHODOPSEUDOMONAS SPHAEROIDES FERMENT FILTRATE
A gentle, probiotic-derived ingredient that may help calm skin and defend against environmental stress, though research is still early.
Irritation
low
Source
biotech
A gentle, hydrating fruit water with mild antioxidant benefits, best for normal to dry skin types.
Irritation
low
Source
natural
A gentle plant extract that may help calm skin and fight free radicals, but research is still early.
Irritation
low
Source
natural
A gentle plant extract with antioxidant potential, but research on its cosmetic benefits is still limited.
Irritation
low
Source
natural
Rhubarb Stalk Juice is a gentle, plant-based ingredient that may help calm skin and provide antioxidant protection, but research is still emerging.
Irritation
low
Source
natural
A gentle botanical extract with antioxidant potential, but research on its topical benefits is still limited.
Irritation
low
Source
natural
A gentle plant extract with antioxidant and soothing potential, though research on its cosmetic benefits is still emerging.
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 semi-synthetic film former that helps products stay put, but may feel tight or stiff on some skin types.
Irritation
low
Source
semi-synthetic
A gentle, plant-based antioxidant extract that helps protect skin from environmental stress and may calm irritation.
Irritation
low
Source
natural
A gentle botanical extract with antioxidant and soothing potential, though research is still early-stage.
Irritation
low
Source
natural
A natural fruit wax that provides a smooth, glossy feel and helps thicken products, but may be moderately comedogenic for acne-prone skin.
Irritation
low
Source
natural
Rhyolite powder is a natural volcanic mineral that gently exfoliates and absorbs excess oil, but its benefits are based more on tradition than strong clinical research.
Irritation
low
Source
natural
Riberry fruit extract is a gentle, antioxidant-rich ingredient that helps protect skin from environmental stress while providing mild hydration and soothing benefits.
Irritation
low
Source
natural
A gentle, antioxidant-rich fruit powder that provides mild physical exfoliation and may help brighten skin over time.
Irritation
low
Source
natural
Riberry seed oil is a gentle, antioxidant-rich emollient that helps soften and condition skin without clogging pores.
Irritation
low
Source
natural
Riboflavin is a gentle antioxidant that may help brighten skin and protect against environmental stress, but it is less studied than other vitamins like C or E.
Irritation
low
Source
natural
A gentle, stabilized form of vitamin B2 that may help protect skin from oxidative stress and support a more even tone, though research is still early.
Irritation
low
Source
semi-synthetic
A fat-soluble form of vitamin B2 that may help protect skin from oxidative stress and support a more even tone, though human studies are limited.
Irritation
low
Source
semi-synthetic
Ribonic acid is a gentle, less-studied sugar acid that may offer mild exfoliation and antioxidant benefits, but more research is needed to confirm its efficacy compared to better-known AHAs.
Irritation
low
Source
natural
A gentle PHA exfoliant that smooths skin and boosts hydration with minimal irritation, ideal for sensitive skin.
Irritation
low
Source
semi-synthetic
Ribose is a gentle sugar molecule that may help energize skin cells and improve hydration, but human research is still limited.
Irritation
low
Source
natural
A gentle plant extract that may help protect skin from environmental stress, but research is still early.
Irritation
low
Source
natural
A gentle, antioxidant-rich extract from rice that helps nourish and protect the skin without irritation.
Irritation
low
Source
natural
A gentle, fermented ingredient that helps hydrate and condition skin, with some antioxidant benefits from the fermentation process.
Irritation
low
Source
biotech
A gentle fermented rice bran extract that supports skin barrier function and provides antioxidant benefits, suitable for most skin types.
Irritation
low
Source
biotech
A gentle, fermented rice bran extract that hydrates and smooths skin with antioxidant benefits.
Irritation
low
Source
natural
A gentle, plant-based emollient that helps soften and smooth skin without clogging pores.
Irritation
low
Source
natural
A gentle, antioxidant-rich oil that hydrates and soothes skin without clogging pores.
Irritation
low
Source
natural
A mild, eco-friendly emulsifier that helps blend oil and water in formulas while leaving skin feeling soft.
Irritation
low
Source
semi-synthetic
A gentle, plant-based emollient that mimics skin's natural lipids to support a healthy moisture barrier.
Irritation
low
Source
natural
Rice bran water is a mild, antioxidant-rich hydrator that soothes and softens skin without clogging pores.
Irritation
low
Source
natural
Rice bran wax is a gentle, plant-based wax that adds texture and moisture to products without clogging pores.
Irritation
low
Source
natural
A gentle, plant-based emollient that helps create a smooth, non-greasy feel in skincare and makeup, with a very low risk of irritation.
Irritation
low
Source
natural
A semi-synthetic emulsifier from rice bran oil that helps create stable, creamy cleansers but may be mildly irritating for sensitive skin.
Irritation
moderate
Source
semi-synthetic
A gentle, plant-based antioxidant that may help protect skin from environmental stress, though research is still emerging.
Irritation
low
Source
biotech
A gentle fermented rice ingredient that lightly exfoliates and hydrates, ideal for those seeking a mild alternative to stronger acids.
Irritation
low
Source
biotech
A gentle fermented rice ingredient that helps hydrate, brighten, and smooth skin without harsh exfoliation.
Irritation
low
Source
biotech
A gentle, fermented rice ingredient that hydrates, lightly exfoliates, and supports a smoother, more even-looking complexion.
Irritation
low
Source
biotech
A gentle, nutrient-rich byproduct of sake brewing that hydrates, soothes, and supports a brighter, more even skin tone.
Irritation
low
Source
natural
A gentle, fermented lipid complex that helps reinforce the skin barrier and improve moisture retention without irritation.
Irritation
low
Source
biotech
A gentle, plant-based ingredient that may help protect skin from environmental stress and support a healthy moisture barrier.
Irritation
low
Source
biotech
Rice germ extract is a gentle, antioxidant-rich ingredient that helps protect and nourish the skin without irritation.
Irritation
low
Source
natural
Rice germ oil is a lightweight, antioxidant-rich emollient that hydrates and protects skin without clogging pores.
Irritation
low
Source
natural
A gentle, natural exfoliant and antioxidant that helps smooth skin without harsh abrasion, ideal for sensitive skin types.
Irritation
low
Source
natural
A gentle, natural exfoliant that polishes skin without harsh microbeads, but may feel gritty for sensitive skin.
Irritation
low
Source
natural
A mild, natural exfoliant and pH balancer that may help smooth skin and refine texture without harshness.
Irritation
low
Source
natural
A gentle, antioxidant-rich extract from rice leaves that helps protect skin from environmental stress and supports a calm, even-looking complexion.
Irritation
low
Source
natural
A gentle, antioxidant-rich botanical extract that may help soothe and protect skin, but research is still early.
Irritation
low
Source
natural
A gentle, fermented rice byproduct that may help soothe skin and provide antioxidant benefits, though research is still emerging.
Irritation
low
Source
natural
A gentle fermented ingredient that hydrates and supports skin barrier health without irritation.
Irritation
low
Source
biotech
A gentle, nutrient-rich hydrator from sake fermentation that can help improve skin texture and radiance.
Irritation
low
Source
natural
A mild, rice-derived emulsifier that helps blend water and oil in formulas while leaving skin feeling soft.
Irritation
low
Source
semi-synthetic
A mild, rice-derived emulsifier that helps blend oil and water in formulas while leaving skin feeling soft.
Irritation
low
Source
semi-synthetic
A gentle plant extract with promising soothing and antioxidant benefits, though research is still early.
Irritation
low
Source
natural
A gentle, plant-derived peptide that helps hydrate and support skin barrier function, suitable for most skin types.
Irritation
low
Source
natural
Rice powder is a gentle, natural absorbent that helps control oil and gives a silky feel, but it offers minimal active skincare benefits.
Irritation
low
Source
natural
A gentle, bioengineered peptide that may support collagen and firmness, but research is still early.
Irritation
low
Source
biotech
A gentle, biotech-derived peptide from rice that helps hydrate and condition skin, but research on its specific benefits is still limited.
Irritation
low
Source
biotech