SPF Scout · Product record

Banana Boat Ultra Defense Sheer Protect SPF 50

SPF 50 as labeled

U.S. formulation · record last retrieved 14 August 2026

What is listed

The ingredient declaration stored for this formulation, reproduced exactly as it was recorded from the source below.

Avobenzone, Octocrylene, Oxybenzone, SD Alcohol 40-B, Acrylates/Octylacrylamide Copolymer, Caprylyl Glycol, Aloe Barbadensis Leaf Extract, Retinyl Palmitate (Vitamin A), Ascorbic Acid (Vitamin C), Tocopheryl Acetate (Vitamin E), PEG-8 Dimethicone, Sodium Propoxyhydroxypropyl, Thiosulfate Silica, Octyldodecanol, Silica, Fragrance

15 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.

  • Avobenzone

    Light stabiliser (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 acts as a light stabilizer, helping the formula hold up under sun exposure. On labels it also appears as Butyl Methoxydibenzoylmethane.

  • Octocrylene

    Light stabiliser (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 serves as a light stabilizer, helping keep other filters and the formula intact under sunlight.

  • Oxybenzone

    Light stabiliser (protects the formula from light)UV absorber (protects the formula from light, not a sunscreen filter)UV filter (filters UV rays)

    Oxybenzone is an organic UV filter that absorbs ultraviolet light. It also works as a light stabilizer, helping the formula hold up under sun exposure. On labels it often appears as Benzophenone-3.

  • Alcohol Denat.

    Antifoaming (stops the formula foaming)Astringent (CosIng functional class)Fragrance ingredient (scent)otherPreservative (inhibits microbial growth)Solvent (dissolves other ingredients)Viscosity control (thickens or thins the formula)

    Alcohol Denat. is ethyl alcohol with additives that make it undrinkable, used as a solvent to dissolve ingredients and thin the formula. It also cuts foam, tightens skin as an astringent, and adjusts thickness. Denat. simply means it has been denatured.

    listed as “SD Alcohol 40-B

  • Acrylates/Octylacrylamide Copolymer

    Film forming (leaves a thin coating)Hair fixing (holds hair in place)

    A large chain-like molecule that forms a film, leaving a thin even layer over the surface. It also helps hold hair in place.

  • Caprylyl Glycol

    Deodorant (masks or reduces odour)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.

  • Aloe Barbadensis Leaf Juice

    otherSkin conditioning (CosIng functional class)

    This is the juice from aloe leaves, used to condition skin. It helps skin feel smooth and in good condition. On labels it is often called aloe vera.

    listed as “Aloe Barbadensis Leaf Extract

  • Retinyl Palmitate

    Skin conditioning (CosIng functional class)

    A skin-conditioning ingredient. It helps keep skin feeling soft and in good condition. It's a form of vitamin A, combining retinol with palmitic acid.

    listed as “Retinyl Palmitate (Vitamin A)

  • Ascorbic Acid

    Antioxidant (slows the formula oxidising)Buffering (holds the formula at a set acidity)Fragrance ingredient (scent)Skin conditioning (CosIng functional class)

    Ascorbic Acid is vitamin C, used here mainly as an antioxidant to protect the formula from going off. It also conditions the skin, adjusts the acidity balance, and can add scent.

    listed as “Ascorbic Acid (Vitamin C)

  • Tocopheryl Acetate

    Antioxidant (slows the formula oxidising)otherSkin conditioning (CosIng functional class)

    Tocopheryl Acetate is a form of vitamin E that acts as an antioxidant, helping keep the formula from going off. It also conditions the skin, softening its feel.

    listed as “Tocopheryl Acetate (Vitamin E)

  • PEG-8 Dimethicone

    Surfactant (cleanses or mixes oil and water)

    A silicone-based helper that lets oil and water mix and can work as a cleansing agent. It keeps the formula's oily and watery parts blended and helps lift away oils.

  • This is a silica-based ingredient with no reported function in the official data. That means there's nothing further listed about what it does in the product.

    listed as “Sodium Propoxyhydroxypropyl, Thiosulfate Silica

  • Octyldodecanol

    Emollient (softens and smooths skin)Fragrance ingredient (scent)Skin conditioning (CosIng functional class)Solvent (dissolves other ingredients)

    An emollient that softens and smooths skin feel, and a solvent that helps dissolve other ingredients. It also carries fragrance. Together this means the product spreads smoothly and stays blended.

  • 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.

  • Parfum

    Fragrance ingredient (scent)

    This is the fragrance, a blend of scent ingredients added to give the product an odour or mask other smells. It's also listed as "aroma" on some labels.

    listed as “Fragrance

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=a84fa20b-3e1d-45de-8f6d-858738319cb2
Retrieved
14 August 2026
Market
United States
Version
v1 of this U.S. formulation
Source tier
Official label document (not independently verified by us)
Entries recorded
15
Record checksum
sha256:c58d6ec7d640faef188bebae4bf03686ef82b95401def342dbb017190cc18c23

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