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Salt & Stone Lightweight Sheer Daily Sunscreen SPF 40
Salt & Stone

Salt & Stone Lightweight Sheer Daily Sunscreen SPF 40

SPF 40Efficacy90/100IrritancyLow·1 UV filter
See all ingredients In 4 routines
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Works for

1 of 1 advertised claim delivered

Sun protection
SPF 40 · 1 UV filter
Broad spectrum
SPF 40Broad spectrumMineral + chemical filtersNo white cast

This product offers a good level of protection against both UVB and UVA rays.

It is a mineral sunscreen. In other words, it contains non-organic UV filters. It will probably not sting your eyes but might leave a white cast.

This product can be considered "reef safe" because it does not contain the UV filters (oxybenzone and octinoxate) that can be harmful to coral reefs when present in the water in high concentrations.

UV spectrum
UVB290–320 nmUVA II320–340 nmUVA I340–400 nm
Zinc Oxide
FilterCoverageWhat it doesEst. amount
Zinc Oxide Mineral UVBUVA Photo-stable A broad spectrum sunblock (protects from both UVA and UVB rays). Is suitable for most sensitive skins. In small concentrations, can be used as a colorant22.75%
Reef-safe
No oxybenzone or octinoxate — the two filters banned in Hawaii, Florida Keys and Aruba.
Anti-aging
Not advertised by the brand · Gluconolactone
Strong evidence

This product can help prevent early signs of skin aging because it offers a good level of broad spectrum sun protection. Sun damage is the main cause of premature skin aging, and protecting your skin from the sun is the best anti-aging strategy.

GluconolactoneUnder-dosedEffect: HighA polyhydroxy acid (PHA) that helps shed the dead cells from the skin surface revealing smoother skin. Is believed to be genter than AHAs. It helps attract water to the upper layer of the skin and can stimulate production of skin's own hyaluronic acid resulting in improved hydration levels. It has been shown to be helpful against acne and clogged pores if used consistently (e.g over a period of 12 weeks) in high enough concentration. It can help reduce fine lines and wrinkles and improve skin tone with long-term application. Can help neutralize free radicals~0.85–1.3%
Evens skin tone
Not advertised by the brand · Gluconolactone
Strong evidence

This product offers broad spectrum sun protection. It means that it can prevent hyperpigmentation and help keep the skin tone even (sun damage is the main factor causing age spots, darkening of post-acne marks and other discolorations).

GluconolactoneUnder-dosedEffect: HighA polyhydroxy acid (PHA) that helps shed the dead cells from the skin surface revealing smoother skin. Is believed to be genter than AHAs. It helps attract water to the upper layer of the skin and can stimulate production of skin's own hyaluronic acid resulting in improved hydration levels. It has been shown to be helpful against acne and clogged pores if used consistently (e.g over a period of 12 weeks) in high enough concentration. It can help reduce fine lines and wrinkles and improve skin tone with long-term application. Can help neutralize free radicals~0.85–1.3%
Moisturizing
Not advertised by the brand · Caprylic/capric triglyceride, Glycerin + 4 more
Good evidence

This product can help improve hydration of the skin with the two types of ingredients.

The first type is called “humectants”:
these ingredients help attract water. When humectants are on the surface of the skin, they “pull in” the moisture from the outside environment, or from within deeper layers of the skin. The following ingredients in this product do the job: glycerin.

This product also contains ingredients called “occlusives”. They help reduce the speed with which our skin loses moisture to the outside environment. These ingredients also help soften the upper layer of the skin, so it feels less tight and nicer to the touch. The following ingredients in this product do the job: caprylic/capric triglyceride, cetearyl alcohol.

Caprylic/capric triglycerideKey active· Emollient, OcclusiveEffect: HighA good mix of fatty acids that forms a protective layer on the skin. Improves the shelf life of products. Derived from coconut and glycerin~3–4.6%
GlycerinKey active· HumectantEffect: HighOne of the best moisturizing ingredients. Naturally present in skin. It attracts water to the upper layer of the skin working as a humectant~2–3%
Cetearyl alcoholKey active· EmollientEffect: MediumA non-drying alcohol. Works as an emollient. Helps water and oil mix together and creates a nice product texture~1.8–2.8%
Coco-caprylate/caprateKey active· EmollientEffect: MediumHelps to soften the upper layer of the skin without creating a greasy texture~5.4–8.1%
Octyldodecanol· EmollientEffect: LowAn emollient that helps to soften the skin and create a pleasant product texture and stabilize the formulation~3.7–5.5%
GluconolactoneUnder-dosedEffect: HighA polyhydroxy acid (PHA) that helps shed the dead cells from the skin surface revealing smoother skin. Is believed to be genter than AHAs. It helps attract water to the upper layer of the skin and can stimulate production of skin's own hyaluronic acid resulting in improved hydration levels. It has been shown to be helpful against acne and clogged pores if used consistently (e.g over a period of 12 weeks) in high enough concentration. It can help reduce fine lines and wrinkles and improve skin tone with long-term application. Can help neutralize free radicals~0.85–1.3%

Can it cause trouble?

Irritancy
6 flagged ingredients
Low risk
We flag 6 ingredients with irritancy potential; the product's overall irritancy is low. The table lists each ingredient's own rating.
IngredientFunctionIrritationEst. amount
Caprylic/capric triglycerideA good mix of fatty acids that forms a protective layer on the skin. Improves the shelf life of products. Derived from coconut and glycerinMedium~3–4.6%est.
Peg-30 dipolyhydroxystearateHelps oil and water mix togetherMedium~2.2–3.2%est.
Polyglyceryl-3 polyricinoleateHelps oil and water mix togetherMedium~1.1–1.6%est.
GluconolactoneA polyhydroxy acid (PHA) that helps shed the dead cells from the skin surface revealing smoother skin. Is believed to be genter than AHAs. It helps attract water to the upper layer of the skin and can stimulate production of skin's own hyaluronic acid resulting in improved hydration levels. It has been shown to be helpful against acne and clogged pores if used consistently (e.g over a period of 12 weeks) in high enough concentration. It can help reduce fine lines and wrinkles and improve skin tone with long-term application. Can help neutralize free radicalsMedium~0.85–1.3%est.
Cetearyl glucosideHelps water and oil in the product mix well together and improves product textureMedium~0.15–0.65%est.
Disodium edtaStabilizes the product formulationMedium~0.05–0.25%est.
Comedogenic
1 ingredient rated 2 or more on the 0–5 pore-clogging scale
1 flagged
These ingredients have a comedogenic rating of 2 or more on a 0–5 scale; the table shows each one's rating. In leave-on products they can clog pores in acne-prone skin.
IngredientFunctionRatingEst. amount
Cetearyl alcoholA non-drying alcohol. Works as an emollient. Helps water and oil mix together and creates a nice product texture2/5~1.8–2.8%est.
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Ingredients

Filter by role to see what each ingredient is doing.

Coco-caprylate/caprate~22–33%
Key active
Irritation risk
Low
Works for
Moisturizing

Helps to soften the upper layer of the skin without creating a greasy texture

More about Coco-caprylate/caprate
Zinc oxide22.75%
UV filterKey active
Irritation risk
Low
Works for
Sun protection

A broad spectrum sunblock (protects from both UVA and UVB rays). Is suitable for most sensitive skins. In small concentrations, can be used as a colorant

More about Zinc oxide
Water~12–18%
Formula
Irritation risk
Low

Plain old water

More about Water
Coco-caprylate/caprate~5.4–8.1%
Key active
Irritation risk
Low
Works for
Moisturizing

Helps to soften the upper layer of the skin without creating a greasy texture

More about Coco-caprylate/caprate
Octyldodecanol~3.7–5.5%
Formula
Irritation risk
Low
Works for
Moisturizing

An emollient that helps to soften the skin and create a pleasant product texture and stabilize the formulation

More about Octyldodecanol
Caprylic/capric triglyceride~3–4.6%
Key activeIrritant · medium
Irritation risk
Medium
Works for
Moisturizing

A good mix of fatty acids that forms a protective layer on the skin. Improves the shelf life of products. Derived from coconut and glycerin

More about Caprylic/capric triglyceride
Peg-30 dipolyhydroxystearate~2.2–3.2%
Irritant · medium
Irritation risk
Medium
Works for
Cleansing

Helps oil and water mix together

More about Peg-30 dipolyhydroxystearate
Glycerin~2–3%
Key active
Irritation risk
Low
Works for
Moisturizing

One of the best moisturizing ingredients. Naturally present in skin. It attracts water to the upper layer of the skin working as a humectant

More about Glycerin
Cetearyl alcohol~1.8–2.8%
Key activeComedogenic 2/5
Irritation risk
Low
Comedogenicity
2/5
Works for
CleansingMoisturizing

A non-drying alcohol. Works as an emollient. Helps water and oil mix together and creates a nice product texture

More about Cetearyl alcohol
Polyglyceryl-3 polyricinoleate~1.1–1.6%
Irritant · medium
Irritation risk
Medium
Works for
Cleansing

Helps oil and water mix together

More about Polyglyceryl-3 polyricinoleate
Gluconolactone~0.85–1.3%
Under-dosedIrritant · medium
Irritation risk
Medium
Works for
ExfoliationEvens skin toneAnti-agingMoisturizingAnti-oxidationAnti-blemish

A polyhydroxy acid (PHA) that helps shed the dead cells from the skin surface revealing smoother skin. Is believed to be genter than AHAs. It helps attract water to the upper layer of the skin and can stimulate production of skin's own hyaluronic acid resulting in improved hydration levels. It has been shown to be helpful against acne and clogged pores if used consistently (e.g over a period of 12 weeks) in high enough concentration. It can help reduce fine lines and wrinkles and improve skin tone with long-term application. Can help neutralize free radicals

More about Gluconolactone
Isostearic acid~0.55–1.25%
Formula
Irritation risk
Low
Works for
Cleansing

Used to create a nice product texture

More about Isostearic acid
Sodium chloride~0.4–0.9%
Formula
Irritation risk
Low

Used to stabilize mixtures of oil and water, and create thicker, gel-like product textures

More about Sodium chloride
Cetearyl glucoside~0.15–0.65%
Irritant · medium
Irritation risk
Medium
Works for
Cleansing

Helps water and oil in the product mix well together and improves product texture

More about Cetearyl glucoside
Sodium benzoate~0.1–0.5%
Formula
Irritation risk
Low

A preservative

More about Sodium benzoate
Xanthan gum~0.1–0.35%
Formula
Irritation risk
Low
Works for
Cleansing

Used to create a thicker product consistency

More about Xanthan gum
Disodium edta~0.05–0.25%
Irritant · medium
Irritation risk
Medium

Stabilizes the product formulation

More about Disodium edta
Ingredient list view

Coco-caprylate/caprate, Zinc oxide, Water, Coco-caprylate/caprate, Octyldodecanol, Caprylic/capric triglyceride, Peg-30 dipolyhydroxystearate, Glycerin, Cetearyl alcohol, Polyglyceryl-3 polyricinoleate, Gluconolactone, Isostearic acid, Sodium chloride, Cetearyl glucoside, Sodium benzoate, Xanthan gum, Disodium edta

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Worth comparing, line by line.

Match % combines shared ingredients, the first five ingredients, shared actives and hero ingredients, irritancy (lower counts in the alternative's favour), texture and body area. Only products in the same routine step are compared.

Side-by-side comparison of this product against its closest alternatives
Salt & StoneLightweight Sheer Daily Sunscreen SPF 40YOUR PRODUCTNaked SundaysSPF50+ 100% Mineral Glow Lotion JumboEthical ZincSPF50+ Daily Wear Light SunscreenUltra VioletteLean Screen Mineral Mattifying Fragrance Free Zinc Skinscreen SPF50
Match—65%63%62%
Price—$50.00—$45.57
Shared key ingredients—3 of 43 of 44 of 4
Key difference———Saccharide Isomerate
Irritancy Low Low Low Low
SPFSPF 40SPF 50SPF 50SPF 50
Drying alcohol————
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Product summary

Based on the ingredient list, we assess that "Salt & Stone - Lightweight Sheer Daily Sunscreen SPF 40" can provide reliable sun protection. It can protect from both UVA and UVB rays. This is great news because not all sunscreens with SPF ratings give UVA protection. (UVA rays do not cause sunburn, but still damage our skin and lead to early aging).

It should also be hydrating enough to use without an additional moisturizer during the day. Like all broad-spectrum sunscreens, this product helps prevent early signs of aging.

Sunscreen filters

This product is a mineral sunscreen. It uses zinc oxide for sun protection. Zinc oxide almost never irritates the skin or stings eyes, but it can leave a white cast.

Irritation risk

This product does not contain known common irritants and is suitable for sensitive skin. We assess the overall irritancy of this sunscreen to be low. For a detailed overview of all potential irritants: click here

You can see the detailed formula review with the breakdown of all actives in the product and the full ingredient list with estimated concentrations in the tables below.

Price

The product retails from 34.00$ up to 44.00$ in the United States and for 17.45£ in the United Kingdom.

For a detailed price comparison: click here.

Sources cited in this review

Every concentration estimate and effectiveness label is anchored to one of these 18 studies and safety reviews.

  1. 1
    Safety Assessment of Alkyl Esters as Used in Cosmeticscir-safety.org
  2. 2
    A review of inorganic UV filters zinc oxide and titanium dioxideonlinelibrary.wiley.com
  3. 3
    Risk assessment of zinc oxide, a cosmetic ingredient used as a UV filter of sunscreensncbi.nlm.nih.gov
  4. 4
    Characterization of the UVA protection provided by avobenzone, zinc oxide, and titanium dioxide in broad-spectrum sunscreen productsncbi.nlm.nih.gov
  5. 5
    Ultraviolet Protection Properties of Commercial Sunscreens and Sunscreens Containing Zno Nanorodsiopscience.iop.org
  6. 6
    ZnO nanoparticles and organic chemical UV-filters are equally well tolerated by human immune cellsncbi.nlm.nih.gov
Salt & Stone Lightweight Sheer Daily Sunscreen SPF 40
Salt & StoneLightweight Sheer Daily Sunscreen SPF 40
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Find on Amazon

As an Amazon Associate, WIMJ earns from qualifying purchases.