SPF Scout · Product record
Boscia LLC Boscia BB BRONZE Broad Spectrum SPF 27 PA Self-Adjusting Shade
SPF 27 as labeled
U.S. formulation · record last retrieved 21 September 2026
What is listed
The ingredient declaration stored for this formulation, reproduced exactly as it was recorded from the source below.
40 entries · the stored declaration is recorded as complete.
What each ingredient generally does
Each entry that matched a canonical ingredient, with the function recorded for it. These notes describe the role an ingredient plays in a formulation. They do not assess an ingredient.
Titanium Dioxide
Colorant (adds color)Opacifier (makes the formula less see-through)UV absorber (protects the formula from light, not a sunscreen filter)UV filter (filters UV rays)Titanium Dioxide is a mineral UV filter that absorbs ultraviolet light. It also works as a white colorant and opacifier, adding whiteness and making the product less see-through. As a color additive it appears on labels as CI 77891.
Zinc Oxide
Bulking agent (adds volume)Colorant (adds color)Light stabilizer (protects the formula from light)Oral care (CosIng functional class)Preservative (inhibits microbial growth)Skin protecting (CosIng functional class)UV absorber (protects the formula from light, not a sunscreen filter)UV filter (filters UV rays)A mineral UV filter that absorbs ultraviolet light, the core sun-protection job in this product. It also helps protect the skin surface and can add whiteness or opacity. On some labels it appears as CI 77947 when used for color.
Water
Antiplaque (CosIng functional class)otherSkin conditioning (CosIng functional class)Solvent (dissolves other ingredients)The base liquid that most of the other ingredients dissolve or spread into. It carries the formula and helps condition the skin surface.
listed as “Water/Aqua/Eau”
Cyclopentasiloxane
Emollient (softens and smooths skin)Hair conditioning (CosIng functional class)Skin conditioning (CosIng functional class)Solvent (dissolves other ingredients)Restricted in the EUThis is a lightweight silicone used to condition skin and hair and to soften and smooth skin feel. It also acts as a solvent, helping the product spread and dissolve other ingredients.
Dipropylene Glycol
Fragrance ingredient (scent)Humectant (holds moisture)Solvent (dissolves other ingredients)Viscosity control (thickens or thins the formula)A solvent that dissolves other ingredients and adjusts how thick the product is. It also adds fragrance. This helps the formula blend and spread evenly.
Dimethicone
Antifoaming (stops the formula foaming)Emollient (softens and smooths skin)Skin conditioning (CosIng functional class)Skin protecting (CosIng functional class)A silicone that softens and smooths skin feel and forms a protective layer on the surface. It also cuts down foam during production, keeping the formula settled.
Glycereth-26 is a humectant, meaning it draws in and holds moisture. It also adjusts the thickness of the product, helping give it the right texture.
Sodium PCA
Antistatic (reduces static)Hair conditioning (CosIng functional class)Humectant (holds moisture)Skin conditioning (CosIng functional class)Sodium PCA is a humectant that draws in and holds moisture, and it conditions both skin and hair to keep them feeling soft. It also has an antistatic action, helping reduce static flyaways in hair.
Lactobacillus Ferment
Skin conditioning (CosIng functional class)A ferment ingredient that conditions the skin, helping it feel soft and smooth. That's its job in the formula.
A colorant that gives the product its shade. On labels it can also appear as CI 77491, CI 77492, or CI 77499.
listed as “Iron Oxides (CI 77492)”
Mica
Anticaking (keeps powder free-flowing)Bulking agent (adds volume)Colorant (adds color)Opacifier (makes the formula less see-through)otherMica is a mineral used to add color and to make the product look opaque rather than see-through. It also keeps powders from clumping and adds bulk to the formula.
A colorant that gives the product its shade. On labels it can also appear as CI 77491, CI 77492, or CI 77499.
listed as “Iron Oxides (CI 77491)”
Butylene Glycol
Fragrance ingredient (scent)Humectant (holds moisture)Skin conditioning (CosIng functional class)Solvent (dissolves other ingredients)Viscosity control (thickens or thins the formula)A multitasking liquid that acts as a humectant, solvent, and thickness adjuster, and carries a scent role. It draws in and holds moisture, dissolves other ingredients, and helps set the product's texture.
Glycerin
Denaturant (makes alcohol undrinkable)Fragrance ingredient (scent)Hair conditioning (CosIng functional class)Humectant (holds moisture)Oral care (CosIng functional class)Skin conditioning (CosIng functional class)Skin protecting (CosIng functional class)Solvent (dissolves other ingredients)Viscosity control (thickens or thins the formula)Glycerin draws in and holds moisture while conditioning and protecting skin. It also dissolves other ingredients, adjusts thickness, and can add scent. On labels it may appear as glycerol.
Arbutin
Antioxidant (slows the formula oxidizing)Bleaching (CosIng functional class)Skin conditioning (CosIng functional class)A compound used here as a skin conditioner and antioxidant, which helps protect the formula from air-related breakdown. It also has a skin-brightening (bleaching) function. On labels it may appear as beta arbutin.
Beta-Glucan is a sugar-based ingredient that conditions skin and adds body to the formula. It gives the product substance while helping keep skin soft and smooth.
A conditioning ingredient that also draws in and holds moisture. It helps skin feel hydrated and smooth.
Simmondsia Chinensis Seed Extract
Abrasive (physically scrubs)Emollient (softens and smooths skin)Hair conditioning (CosIng functional class)Skin conditioning (CosIng functional class)A jojoba seed extract that works as an emollient and conditioner for skin and hair, and can also act as a mild abrasive. It softens and smooths, and in scrub-type products the particles help with polishing.
listed as “Simmondsia Chinensis (Jojoba) Seed Extract”
Epilobium Angustifolium Flower/Leaf/Stem Extract
Skin conditioning (CosIng functional class)An extract from the flowers, leaves, and stems of rosebay used to condition the skin. It helps keep skin feeling soft and smooth.
Alteromonas Ferment Extract
Skin conditioning (CosIng functional class)A ferment-based extract that works as a skin conditioner. It helps keep skin feeling soft and comfortable.
An extract of yeast used to condition and protect skin. In practice it helps skin feel soft and forms a light protective layer on the surface.
A moisture-grabbing ingredient that draws in and holds water. That keeps skin conditioned and helps it feel supple. It's the salt form of hyaluronic acid.
Allantoin
otherSkin conditioning (CosIng functional class)Skin protecting (CosIng functional class)Soothing (CosIng functional class)Allantoin is a skin-conditioning and skin-protecting ingredient with a soothing role. It helps keep skin feeling smooth and comfortable and forms a protective feel on the surface.
Adenosine
Skin conditioning (CosIng functional class)Adenosine is a skin-conditioning ingredient. It helps keep skin feeling smooth and in good condition.
Panthenol
Antistatic (reduces static)Hair conditioning (CosIng functional class)Humectant (holds moisture)Skin conditioning (CosIng functional class)A skin- and hair-conditioning ingredient that also reduces static cling. In practice it helps keep skin and hair feeling soft and smooth.
Stearic Acid
Emulsion stabilizer (keeps oil and water mixed)Fragrance ingredient (scent)otherRefatting (CosIng functional class)Surfactant (cleanses or mixes oil and water)Stearic Acid helps oil and water mix, keeps that blend from separating, and cleanses. It also softens skin feel and adds scent, so it keeps the product stable and smooth while contributing fragrance.
PEG/PPG-20/15 Dimethicone
Surfactant (cleanses or mixes oil and water)PEG/PPG-20/15 Dimethicone is a silicone-based emulsifier that helps oil and water mix. It keeps the oily and watery parts blended into a stable, uniform product.
PEG/PPG-18/18 Dimethicone
Surfactant (cleanses or mixes oil and water)A silicone-based emulsifier that helps oil and water mix. This keeps the watery and oily parts of the product blended into one smooth, stable formula.
Dimethicone/PEG-10/15 Crosspolymer
Film forming (leaves a thin coating)Opacifier (makes the formula less see-through)A silicone-based ingredient that leaves a thin, even layer on the skin as the product sets. It also adds opacity, making the product look less see-through.
Acrylates/Dimethicone Copolymer
Anticaking (keeps powder free-flowing)Binder (holds the formula together)Film forming (leaves a thin coating)Skin conditioning (CosIng functional class)A silicone-acrylic blend that forms a thin film and conditions skin. It helps the product spread into an even layer, keeps powdery ingredients from clumping, holds the mix together, and softens skin feel.
PEG-10 Dimethicone
Hair conditioning (CosIng functional class)Skin conditioning (CosIng functional class)A silicone-based ingredient that conditions skin and hair. In practice it helps leave a smooth, soft feel.
A binding ingredient that helps hold the parts of the formula together. It is often used to coat and bind powders in a mix.
Phenyl Trimethicone
Antifoaming (stops the formula foaming)Emollient (softens and smooths skin)Hair conditioning (CosIng functional class)Occlusive (CosIng functional class)Skin conditioning (CosIng functional class)This is a silicone that conditions skin and hair and cuts down on foaming. As an occlusive it forms a layer that helps hold in moisture, and it gives a smooth feel.
Sorbitol
Fragrance ingredient (scent)Humectant (holds moisture)Skin conditioning (CosIng functional class)A humectant that draws in and holds moisture, so it keeps the product from drying out and conditions the skin. It also acts as a fragrance component, adding to the product's scent.
Alumina
Abrasive (physically scrubs)Absorbent (takes up oil or water)Anticaking (keeps powder free-flowing)Bulking agent (adds volume)Opacifier (makes the formula less see-through)otherViscosity control (thickens or thins the formula)A mineral powder that soaks up excess oil, adjusts thickness, and keeps the formula from clumping. It also adds opacity and can act as a mild scrubbing agent, giving the product body and a smoother texture.
Calcium Aluminum Borosilicate
Bulking agent (adds volume)A fine glass powder used as a bulking agent. It adds body and fills out the formula, contributing to its texture and feel.
A colorant that gives the product its shade. On labels it can also appear as CI 77491, CI 77492, or CI 77499.
listed as “Iron Oxides (CI 77499)”
Silica
Abrasive (physically scrubs)Absorbent (takes up oil or water)Anticaking (keeps powder free-flowing)Bulking agent (adds volume)Opacifier (makes the formula less see-through)otherViscosity control (thickens or thins the formula)Silica is a fine mineral powder that soaks up excess moisture and oil, and adjusts how thick the product feels. It keeps powders from clumping, adds bulk, and can make a formula look more opaque. Its chemical name is silicon dioxide.
Tin Oxide
Abrasive (physically scrubs)Bulking agent (adds volume)Opacifier (makes the formula less see-through)otherViscosity control (thickens or thins the formula)Tin Oxide is a mineral powder that works as a bulking agent and adjusts a product's thickness. It also adds opacity, making a formula look more solid or less see-through, and can act as a mild abrasive.
Caprylyl Glycol
Deodorant (masks or reduces odor)Emollient (softens and smooths skin)Hair conditioning (CosIng functional class)Preservative (inhibits microbial growth)Skin conditioning (CosIng functional class)A multi-tasker that conditions skin and hair and acts as a deodorant. As an emollient it softens and smooths, leaving skin feeling conditioned.
Checking this against your own list
SPF Scout's Personal Ingredient Check runs in the app, on your device. This page cannot see a personal avoidance list. Your selections are stored on your phone and are never sent to this website. There is nowhere on our side for them to go.
In the app you choose the ingredients you already avoid, and every entry in this declaration that matches one of them is shown to you with the alias path that produced the match.
This comparison does not predict whether your skin will react.
Source quality
- Source
- DailyMed drug label
- Source record
- https://dailymed.nlm.nih.gov/dailymed/drugInfo.cfm?setid=5f5fb9f5-00be-420a-b19a-b753c45f9a88
- Retrieved
- 21 September 2026
- Market
- United States
- Version
- v1 of this U.S. formulation
- Source tier
- Official label document (not independently verified by us)
- Entries recorded
- 40
- Record checksum
- sha256:ec3bd399b1d5e2e37e61ad663ad3a47ee4850654163f02e0e07d8a4b7b663731
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