SPF Scout · Ingredient library
Ingredients starting with I
81 on this page
No general role is recorded for this ingredient in the inventory we hold. That is a gap in our record, not a statement about the ingredient.
CAS 337376-15-5
Ilex Aquifolium (Holly) Leaf Extract
Skin conditioning (CosIng functional class)An extract from European holly leaves that conditions skin. In practice it helps skin feel soft and smooth.
CAS 90045-83-3
Ilex Paraguariensis Leaf Extract
Fragrance ingredient (scent)Hair conditioning (CosIng functional class)Skin conditioning (CosIng functional class)An extract from Paraguay tea leaves that conditions skin and hair and adds scent. It helps keep skin and hair feeling soft and contributes to the product's fragrance.
CAS 73296-98-7
An extract from star anise fruit that adds fragrance and conditions the skin. It gives the product a scent while helping skin feel softer and smoother.
CAS 84650-59-9
Illite
Abrasive (physically scrubs)Absorbent (takes up oil or water)Anticaking (keeps powder free-flowing)Bulking agent (adds volume)A clay mineral that works as a mild scrub, soaks up moisture and oil, keeps powders from clumping, and adds bulk to a formula. In practice it helps give texture and absorb excess.
CAS 12173-60-3
Imidazolidinyl Urea
Preservative (inhibits microbial growth)A preservative. It helps keep the product from spoiling as it sits on the shelf and in use.
CAS 39236-46-9
No general role is recorded for this ingredient in the inventory we hold. That is a gap in our record, not a statement about the ingredient.
An extract from garden balsam flowers that acts as an astringent and adds fragrance. It gives a tightening feel to skin and contributes to the product's scent.
CAS 90045-84-4
Imperata Cylindrica Root Extract
Skin conditioning (CosIng functional class)This is a root extract used as a skin conditioner. It helps keep skin feeling soft and smooth.
Indigofera Tinctoria Leaf
Hair dyeing (colors hair)Dried, crushed leaves of the indigo plant, used as a hair dye. It adds color to hair.
CAS 84775-63-3
Indigofera Tinctoria Leaf Extract
Skin conditioning (CosIng functional class)A leaf extract used as a skin-conditioning ingredient. It helps leave skin feeling softer and smoother.
CAS 84775-63-3
Inonotus Obliquus (Mushroom) Extract
Skin conditioning (CosIng functional class)A mushroom extract used to condition skin. It helps the product leave skin feeling soft and smooth.
Inositol
Antistatic (reduces static)Hair conditioning (CosIng functional class)Humectant (holds moisture)A multitasker that conditions hair and works as a humectant, meaning it draws in and holds moisture. It also acts as an antistatic, cutting down the static that makes hair fly away, and helps keep hair feeling soft.
CAS 87-89-8
Inula Britannica Flower Extract
Skin conditioning (CosIng functional class)A flower extract that acts as a skin-conditioning ingredient. In practice it helps skin feel softer and smoother.
A root extract that conditions skin and adds fragrance. It helps skin feel smooth while contributing to the product's scent.
CAS 84012-20-4
A skin-conditioning ingredient. It helps the product leave skin feeling good.
CAS 9005-80-5
Inulin Lauryl Carbamate
Emulsion stabilizer (keeps oil and water mixed)Surfactant (cleanses or mixes oil and water)This ingredient helps oil and water mix and keeps that blend stable so the product doesn't separate. It also acts as a cleansing agent that helps lift away dirt and oil.
Iodopropynyl Butylcarbamate
Preservative (inhibits microbial growth)A preservative that keeps the product from spoiling. It holds off the growth of microbes so the formula stays stable over time.
CAS 55406-53-6
A scent ingredient that adds fragrance to the product and acts as an astringent, giving a slight tightening feel on skin.
CAS 8013-90-9 / 79-77-6
Ipomoea Batatas Leaf Extract
Emollient (softens and smooths skin)Skin conditioning (CosIng functional class)A leaf extract that works as an emollient, meaning it softens and smooths skin feel. It helps the product leave skin feeling supple.
CAS -
Ipomoea Batatas Root Extract
Skin conditioning (CosIng functional class)This is a sweet potato root extract used as a skin conditioner. It helps keep skin feeling soft and smooth.
CAS 223749-11-9
Ipomoea Batatas Tuber
Hair conditioning (CosIng functional class)Skin conditioning (CosIng functional class)This is sweet potato tuber, used to condition both skin and hair. It helps leave skin and hair feeling softer and smoother.
Ipomoea Batatas Tuber Extract
Antioxidant (slows the formula oxidizing)An extract from sweet potato tubers that works as an antioxidant. It helps keep the formula from spoiling due to exposure to air.
CAS 223749-11-9
Ipomoea Hederacea Seed Extract
Skin protecting (CosIng functional class)A seed extract used to protect skin, helping form a comforting layer on the surface.
CAS 90045-87-7
This is orris root, used to add fragrance and as a tonic. It gives the product scent while contributing a freshening effect.
CAS 90045-89-9
An extract of orris root that adds fragrance and works as a tonic. It gives the product scent along with a freshening effect.
CAS 90045-89-9
A root extract that adds fragrance and acts as a tonic, giving a refreshed feel. It contributes to the product's scent.
CAS 90045-90-2
A colorant that gives the product its shade. On labels it can also appear as CI 77491, CI 77492, or CI 77499.
CAS 1309-37-1
A mineral pigment that adds color and opacity to the product. It helps give the formula its shade and makes it less see-through.
CAS 12023-27-7
Irvingia Gabonensis Kernel Butter
Skin conditioning (CosIng functional class)A rich butter that conditions skin. It helps the product leave skin feeling soft and smooth.
CAS 192230-28-7
Isoamyl Acetate
Solvent (dissolves other ingredients)A solvent, meaning it dissolves other ingredients and keeps them evenly blended. This helps the formula stay uniform.
CAS 123-92-2
An ester made from isoamyl alcohol and coconut acid, used in formulas as an oil-like component. No official function is listed in the reference data.
An emollient that softens and smooths skin feel. It gives the product a smoother finish on the skin.
Isoamyl P-Methoxycinnamate
Light stabilizer (protects the formula from light)UV absorber (protects the formula from light, not a sunscreen filter)UV filter (filters UV rays)An organic UV filter that absorbs ultraviolet light. It also works as a light stabilizer, helping the formula hold up under sun exposure.
An ingredient used for nail sculpting, helping build and shape a firm surface.
CAS 5888-33-5
Isobornyl Methacrylate
Film forming (leaves a thin coating)This is a film former. It leaves a thin, even layer on the skin as the product dries, helping the formula stay put where you spread it.
CAS 7534-94-3
Isobutane
Propellant (expels the product from the can)A propellant. In spray or aerosol products it provides the push that pumps the contents out of the can.
Isobutyl Methyl Tetrahydropyranol
Fragrance ingredient (scent)This is a fragrance ingredient. Its job is to give the product its scent.
CAS 63500-71-0
This is an emollient that conditions the skin. It softens and smooths the skin feel, giving the product a slicker glide.
CAS 646-13-9
Isobutylamido Thiazolyl Resorcinol
Antioxidant (slows the formula oxidizing)Bleaching (CosIng functional class)Skin conditioning (CosIng functional class)A skin-conditioning ingredient that also works as an antioxidant, meaning it helps protect the formula from oxygen damage. Its bleaching function means it acts on skin tone and evenness.
CAS 1428450-95-6
Isobutylparaben
Preservative (inhibits microbial growth)An antimicrobial that curbs the growth of microbes in the product. This helps keep the formula from spoiling.
CAS 4247-02-3
Isoceteth-10
Surfactant (cleanses or mixes oil and water)This is a helper that both cleanses and helps oil and water mix. It keeps the oily and watery parts of the product blended together and can lift away dirt and oils.
CAS 69364-63-2
Isoceteth-20
Surfactant (cleanses or mixes oil and water)A surfactant that both cleanses and helps oil and water mix. In practice it lifts away dirt and oil and keeps the water and oil parts of the product blended together.
Isocetyl Alcohol
Emollient (softens and smooths skin)Skin conditioning (CosIng functional class)Viscosity control (thickens or thins the formula)This is an emollient that also adjusts thickness. It softens and smooths skin feel while helping give the product its body and texture.
CAS 36311-34-9
A skin-conditioning emollient, meaning it softens and smooths the feel of skin. It gives the product a smooth, conditioned finish on skin.
CAS 25339-09-7
Isocetyl Stearoyl Stearate
Emollient (softens and smooths skin)Skin conditioning (CosIng functional class)Viscosity control (thickens or thins the formula)An oil-like emollient that softens and smooths skin feel. It also adjusts the thickness of the formula, helping it spread and hold together.
CAS 97338-28-8
Isochrysis Galbana Extract
Skin conditioning (CosIng functional class)This is an algae extract used as a skin conditioner. It helps keep skin feeling soft and smooth.
CAS 1190414-92-6
Isodecyl Isononanoate
Antistatic (reduces static)Emollient (softens and smooths skin)Skin conditioning (CosIng functional class)This is an emollient that softens and smooths skin feel, giving a lighter glide. It also works as an antistatic, cutting down static so the product sits more evenly.
CAS 41395-89-5
This is an emollient skin conditioner. It softens and smooths the skin feel and adds slip to the product.
CAS 14779-93-2
Isodecyl Neopentanoate
Emollient (softens and smooths skin)Skin conditioning (CosIng functional class)A lightweight oily ingredient that softens and smooths skin feel. It gives the product a silky, easy-to-spread texture.
An emollient oil that conditions and softens skin. In practice it smooths the skin feel and helps the product glide on.
CAS 59231-34-4
A skin-conditioning ingredient that softens and smooths skin feel. It also has an antistatic role, cutting down static so the product sits more evenly.
CAS 85252-25-1
Isododecane
Emollient (softens and smooths skin)Fragrance ingredient (scent)Skin conditioning (CosIng functional class)Solvent (dissolves other ingredients)A light fluid that acts as a solvent, keeping other ingredients dissolved and evenly blended. It also softens skin feel and can carry fragrance. It leaves a quick, non-heavy finish as it spreads.
CAS 31807-55-3
Isoeicosane
Emollient (softens and smooths skin)Skin conditioning (CosIng functional class)Solvent (dissolves other ingredients)A lightweight oil-like ingredient that softens and smooths skin feel. It also works as a solvent, dissolving other ingredients so they blend into a uniform product.
CAS 93685-79-1
A fragrance and flavoring ingredient. Its job here is to add scent to the product.
CAS 97-54-1
Isoeugenyl Acetate
Fragrance ingredient (scent)This is a perfuming ingredient. It adds scent to the product.
CAS 93-29-8
Isohexadecane
Emollient (softens and smooths skin)Skin conditioning (CosIng functional class)Solvent (dissolves other ingredients)A light oil-like ingredient that works as a solvent, keeping other ingredients dissolved and mixed. It also softens and smooths skin feel, helping the product glide on.
Isoleucine
Antistatic (reduces static)Hair conditioning (CosIng functional class)Skin conditioning (CosIng functional class)An amino acid used to condition skin and hair. It helps skin feel smooth and reduces static cling in hair.
Isomalt
Humectant (holds moisture)A sugar-based humectant that draws in and holds moisture. This helps keep the product and skin from drying out.
CAS 64519-82-0
Isononyl Isononanoate
Antistatic (reduces static)Emollient (softens and smooths skin)Skin conditioning (CosIng functional class)An oily conditioning ingredient that softens and smooths skin feel. It also helps cut static, giving the product a light, spreadable texture.
Isooctane
Solvent (dissolves other ingredients)Isooctane is a solvent. It dissolves other ingredients and helps them stay evenly spread through the product.
CAS 540-84-1
Isopentyldiol
Solvent (dissolves other ingredients)A solvent that dissolves other ingredients so they blend into a uniform mix. This helps keep the formula evenly combined.
CAS 50468-22-9 / 2568-33-4
Isophorone Diisocyanate
Film forming (leaves a thin coating)A film former, meaning it leaves a thin, even layer on the skin as the product dries. That layer helps the formula stay put.
CAS 4098-71-9
Isopropyl Alcohol
Antifoaming (stops the formula foaming)Fragrance ingredient (scent)Solvent (dissolves other ingredients)Viscosity control (thickens or thins the formula)A fast-drying solvent that dissolves other ingredients and adjusts the formula's thickness. It also reduces foam during mixing and adds scent. You may see it on labels as isopropanol or IPA.
CAS 67-63-0
Isopropyl Isostearate
Binder (holds the formula together)Emollient (softens and smooths skin)Skin conditioning (CosIng functional class)An oily ingredient that softens and smooths skin feel while helping hold the formula together. It contributes to a smooth, easy-to-apply texture.
Isopropyl Lanolate
Antistatic (reduces static)Binder (holds the formula together)Emollient (softens and smooths skin)Skin conditioning (CosIng functional class)Surfactant (cleanses or mixes oil and water)An emollient that softens and smooths the skin feel. It also helps oil and water mix and holds the formula together, and reduces static cling. On labels it comes from lanolin esters.
CAS 63393-93-1
Isopropyl Lauroyl Sarcosinate
Skin conditioning (CosIng functional class)A skin-conditioning ingredient that helps skin feel smooth. It contributes to the product's overall feel on the skin.
Isopropyl Myristate
Binder (holds the formula together)Emollient (softens and smooths skin)Fragrance ingredient (scent)Skin conditioning (CosIng functional class)An emollient oil-like ingredient that softens and smooths skin feel. It also helps bind the formula together and can carry fragrance. It gives products a light, spreadable slip.
Isopropyl Palmitate
Binder (holds the formula together)Emollient (softens and smooths skin)Fragrance ingredient (scent)Skin conditioning (CosIng functional class)An emollient that softens and smooths skin feel while helping hold the formula together. It also can carry fragrance and lends a smooth, spreadable texture.
CAS 142-91-6
Isopropyl Titanium Triisostearate
Emollient (softens and smooths skin)Skin conditioning (CosIng functional class)Surfactant (cleanses or mixes oil and water)An emollient that softens and smooths skin feel while also helping oil and water mix. This keeps the water and oil parts blended into a stable product.
CAS 61417-49-0
Isopropylphthalimide
Plasticizer (keeps a film flexible)Skin conditioning (CosIng functional class)Solvent (dissolves other ingredients)A multi-tasking ingredient that works as a solvent, dissolving other ingredients so they blend into a smooth mix. It also acts as a plasticizer to keep films flexible and helps condition the skin, softening its feel.
CAS 304-17-6
Isosorbide Dicaprylate
Skin conditioning (CosIng functional class)Isosorbide Dicaprylate is a skin-conditioning ingredient. It softens the skin and improves how the product feels going on.
CAS 64896-70-4
Isosteareth-20
Surfactant (cleanses or mixes oil and water)A surfactant that cleanses and helps oil and water mix. In practice it lifts away dirt and oil and keeps the watery and oily parts blended into one smooth product.
CAS 52292-17-8
Isostearic Acid
Binder (holds the formula together)Emollient (softens and smooths skin)Surfactant (cleanses or mixes oil and water)A multitasker that helps oil and water mix and works as a cleansing agent. It also helps bind the formula's parts together, keeping everything blended.
CAS 2724-58-5
Isostearyl Alcohol
Emollient (softens and smooths skin)Skin conditioning (CosIng functional class)Viscosity control (thickens or thins the formula)A fatty alcohol that softens and smooths skin feel while conditioning it. It also adjusts the product's thickness, giving it body rather than being runny.
CAS 27458-93-1
Isostearyl Isostearate
Binder (holds the formula together)Emollient (softens and smooths skin)Skin conditioning (CosIng functional class)An emollient that softens and smooths skin feel and conditions the surface. It also helps hold the formula together for a smooth texture.
An emollient that softens and smooths skin feel. It conditions the skin's surface and gives the product a smooth glide.
Isostearyl Neopentanoate
Binder (holds the formula together)Emollient (softens and smooths skin)Skin conditioning (CosIng functional class)An emollient that softens and smooths the skin. It also helps hold the formula together and conditions the skin.
CAS 58958-60-4
Isostearyl Palmitate
Binder (holds the formula together)Emollient (softens and smooths skin)Skin conditioning (CosIng functional class)Isostearyl Palmitate is an emollient that softens and smooths skin feel. It also helps hold the formula together and conditions the skin.
CAS 72576-80-8
Isostearyl Sebacate
Skin conditioning (CosIng functional class)Isostearyl Sebacate is a skin-conditioning ingredient. It works on how the product feels and leaves the skin.
CAS 478273-24-4
Isotridecyl Isononanoate
Emollient (softens and smooths skin)Skin conditioning (CosIng functional class)An emollient that softens and smooths the skin. It gives the product a slip that helps it spread easily.
CAS 59231-37-7