Beauty ingredients explained in plain English

A modified collagen that may help improve skin hydration and elasticity, but its calcium component adds little extra benefit for most people.

Calcium hydroxide is a strong alkaline ingredient used in hair relaxers and depilatories, but it can be highly irritating and is not recommended for sensitive or damaged skin.

A gentle antioxidant that may help protect skin from environmental stress and support a more even tone, though research is still emerging.

A gentle antioxidant that may help protect skin from environmental stress and support a more even tone, though research is still early.

Calcium lactate is a gentle, hydrating exfoliant that helps smooth skin without the sting of stronger acids.

Calcium Laurate is a mild cleansing and thickening agent, generally safe but not a star active ingredient.

A mild, sulfate-free surfactant that creates a rich lather without stripping the skin, making it a favorite for sensitive and dry skin types.

A gentle binder and dispersant from wood pulp that helps keep formulas stable and even.

A safe, plant-derived wax that helps hold lipsticks and pencils together, but offers no direct skin benefit.

Calcium Myristate is a safe thickening agent that gives products a creamy feel, but it may be moderately pore-clogging for acne-prone skin.

Calcium oxide is a powerful alkaline ingredient used in some hair removal and straightening products, but it can be highly irritating and is not suitable for sensitive skin or frequent use.

A gentle, vitamin B5-related ingredient that helps calm irritation and support the skin's natural barrier without clogging pores.

A stable, water-soluble form of Vitamin B5 that helps hydrate and soothe the skin without irritation.

Calcium Paraben is a synthetic preservative that effectively prevents spoilage but has fallen out of favor due to potential endocrine-disrupting concerns and consumer demand for paraben-free products.

Calcium peroxide is a bleaching agent mainly used in oral care products; it can whiten teeth but may cause gum irritation if overused.

A gentle mineral abrasive and opacifier, safe for most skin types but best used in rinse-off products.

A gentle, plant-based humectant that holds water on the skin's surface, offering a smoother feel and lasting hydration without stickiness.

A next-generation humectant that forms a flexible, breathable film to lock in moisture without the stickiness of traditional hyaluronic acid.

A synthetic polymer that helps cosmetics stay put, but offers no active skincare benefits.

A gentle, synthetic thickener that helps create smooth gel textures and keeps formulas stable without irritating skin.

Calcium Propionate is a mild preservative that helps keep products fresh, but it offers no direct skin benefit and is rarely the star ingredient in skincare.

A gentle mineral abrasive that helps polish teeth and exfoliate skin without harshness.

Calcium Saccharin is a safe, non-active sweetener used mainly to make lip and oral care products taste better, but it offers no skincare benefits.

A milder alternative to salicylic acid, offering gentle exfoliation and soothing benefits, ideal for sensitive or dry skin types.

A safe, non-irritating mineral powder that helps control shine and improve product feel, but offers no active skincare benefits.

A safe, non-reactive glass powder that adds visual appeal and texture to makeup without clogging pores.

A gentle, salt-form preservative that helps keep your products fresh without common irritation.

A gentle, starch-based powder that soaks up excess oil and gives skin a silky, non-greasy feel.

A gentle, starch-based powder that absorbs oil and gives a silky feel without clogging pores.

A safe, non-irritating ingredient that improves the feel and application of powder and cream products.

A mild, food-grade emulsifier that helps blend oil and water in creams and lotions without common irritation.

Calcium sulfate is a safe, non-irritating mineral used mainly to add texture or absorb excess oil in powders and masks.

Calcium Sulfate Hydrate is a safe, mineral-based ingredient used to add texture, opacity, or absorbency in powder cosmetics, but it offers no active skincare benefits.

Calcium sulfide is an effective hair remover but can be harsh and irritating, especially for sensitive skin.

Calcium Tartrate is a gentle, natural exfoliant that helps smooth skin without harsh microbeads, but it offers no active skincare benefits beyond physical exfoliation.

Calcium Thioglycolate is a proven hair-removal ingredient, but it can irritate sensitive skin and has a strong odor.

A potent depilatory chemical that dissolves hair but can irritate sensitive skin if left on too long.

A safe mineral pigment that adds opacity and coverage to makeup, but offers no skincare benefits.

A safe, non-reactive mineral composite that adds opacity and a silky feel to makeup, with no known skin benefits beyond aesthetics.

Calcium Trifluoroacetate is a synthetic salt used in tiny amounts for pH control, but it is rare in mainstream skincare and lacks robust safety data for cosmetic use.

Calcium Undecylenate is a mild preservative and antimicrobial that helps keep products fresh, but it's not a powerhouse active ingredient.

A mild synthetic helper that improves how cleansers mix and rinse, generally safe for most skin types.

A gentle film-forming polymer that improves the feel and wear of skincare without common irritation or clogging concerns.

A gentle, synthetic film-former that helps control shine and improve the feel of skincare products.

A gentle, plant-derived extract that may help calm irritated skin and provide antioxidant protection, though research on the callus form is still emerging.

A gentle fermented calendula extract that may help calm and protect sensitive skin, though research is still emerging.

A gentle, time-tested botanical that helps calm irritated skin and supports a healthy-looking complexion.

A gentle, plant-derived oil that helps calm irritated skin and supports moisture retention without clogging pores.

A mild, soothing botanical water that can help calm irritated or sensitive skin without stripping moisture.

A gentle, plant-derived juice that helps calm irritated skin and provides antioxidant protection without clogging pores.

A gentle, plant-derived ingredient that may help calm irritated skin and provide antioxidant protection, though research is still emerging.

A gentle, non-greasy oil that helps calm and soften skin, ideal for sensitive or irritated complexions.

Calf Skin Extract is a protein-rich ingredient that may help moisturize and temporarily smooth skin, but it lacks strong research and raises ethical and sourcing concerns.

A gentle, plant-based oil that hydrates and soothes, but research on its specific benefits is still limited.

California poppy extract is a gentle botanical with antioxidant and soothing potential, but research on its cosmetic benefits is still limited.

A gentle, plant-derived ingredient that may help calm skin and fight free radicals, but research is still early.

A gentle botanical extract that may help calm irritated skin and provide antioxidant protection, though research is still early.

A gentle plant extract with antioxidant potential, but research on its specific skincare benefits is still limited.

A gentle fermented botanical extract that may help calm skin and fight oxidative stress, though human research is limited.

A gentle, antioxidant-rich ferment that may help soothe and protect skin, but research is still early.