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Salt & Stone Salt Stone SPF 30 Sunscreen Lotion
Salt & Stone

Salt & Stone Salt Stone SPF 30 Sunscreen Lotion

SPF 30Efficacy90/100IrritancyMedium·1 UV filter
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Works for

2 of 2 advertised claims delivered

Sun protection
SPF 30 · 1 UV filter
Broad spectrum
SPF 30Broad spectrumMineral filtersWater-resistant

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 colorant22.8%
Reef-safe
No oxybenzone or octinoxate — the two filters banned in Hawaii, Florida Keys and Aruba.
Anti-aging
2 ingredients credited for this claim
Strong support
What the product description says
“Non-nano zinc oxide reflects UVA + UVB rays helping to prevent premature ageing and promote healthier, younger-looking skin.”
Source: Naturisimo

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.

Hyaluronic acidEffect: LowOne of the best moisturizing ingredients. Attracts water into the upper layer of the skin. Naturally present in skin. Typically has large molecule size unless advertised otherwise on the product label. Helps support skin's barrier function and may help to reduce inflammation~0.1–0.4%
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~0.35–0.85%
Evens skin tone
Not advertised by the brand · 1 ingredient credited for this claim
Strong support

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~0.35–0.85%
Moisturizing
Not advertised by the brand · 13 ingredients credited for this claim
Good support

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, hyaluronic acid.

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: beeswax, caprylic/capric triglyceride.

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~0.55–1.25%
Hyaluronic acidKey active· HumectantEffect: HighOne of the best moisturizing ingredients. Attracts water into the upper layer of the skin. Naturally present in skin. Typically has large molecule size unless advertised otherwise on the product label. Helps support skin's barrier function and may help to reduce inflammation~0.1–0.4%
BeeswaxKey active· Emollient, OcclusiveEffect: HighForms a protective barrier that holds water and keeps dry skin hydrated. Keeps an emulsion from separating into its oil and liquid components, and increases the thickness of a product. Can be an allergen~0.9–1.35%
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~2.9–4.4%
Cera albaKey active· Emollient, OcclusiveEffect: HighForms a protective barrier that holds water and keeps dry skin hydrated. Keeps an emulsion from separating into its oil and liquid components, and increases the thickness of a product. Can be an allergen~1.2–1.9%
DimethiconeKey active· Emollient, OcclusiveEffect: HighA silicone that helps to reduce water loss from the surface of the skin. Can temporarily "fill in" lines and wrinkles, absorb oil, and create a nice product finish~2.2–3.3%
Rosa canina seed oilKey activeEffect: HighA plant oil that helps soften the upper layer of the skin. It might have anti-oxidant properties. Might help reduce inflammation in skin and help against blemishes~0.2–0.75%
Ethylhexyl palmitateKey active· EmollientEffect: MediumAn emollient that helps soften the skin and create a nice product texture~1.7–2.6%
Coco-caprylate/caprateKey active· EmollientEffect: MediumHelps to soften the upper layer of the skin without creating a greasy texture22.8%
Butylene glycol· HumectantEffect: LowUsed to create a nice product texture and help delivery of other ingredients. Might be somewhat helpful in attracting water to the upper layer of the skin~1.4–2.1%
Calcium gluconate· HumectantEffect: LowHelps attract water to the upper layer of the skin and helps to improve appearance of the product~0.2–0.8%
Persea gratissima oilUnder-dosedEffect: HighAn emollient that helps soften the skin and could be helpful in repairing its barrier function~0.15–0.65%
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~0.35–0.85%

Can it cause trouble?

Irritancy
1 strong irritant: Parfum
Medium risk
We flagged 9 ingredients with irritancy potential. Severity depends on your sensitivity threshold; the table lists the worst offenders first.
IngredientFunctionIrritationEst. amount
ParfumAn aromatic blend of unspecified and possibly irritating ingredientsHigh~0.05–0.2%est.
Glyceryl oleateHelps oil and water mix together. Can be irritatingHigh~0.05–0.3%est.
Polyglyceryl-3 polyricinoleateHelps oil and water mix togetherMedium~4.3–6.5%est.
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~2.9–4.4%est.
Peg-30 dipolyhydroxystearateHelps oil and water mix togetherMedium~1.2–1.8%est.
Cera albaForms a protective barrier that holds water and keeps dry skin hydrated. Keeps an emulsion from separating into its oil and liquid components, and increases the thickness of a product. Can be an allergenMedium~1.2–1.9%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~0.35–0.85%est.
Rosa canina seed oilA plant oil that helps soften the upper layer of the skin. It might have anti-oxidant properties. Might help reduce inflammation in skin and help against blemishesMedium~0.2–0.75%est.
Persea gratissima oilAn emollient that helps soften the skin and could be helpful in repairing its barrier functionMedium~0.15–0.65%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
Ethylhexyl palmitateAn emollient that helps soften the skin and create a nice product texture3/5~1.7–2.6%est.
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SPF50+ Daily Wear Light Sunscreen
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Ingredients

Filter by role to see what each ingredient is doing.

Zinc oxide22.8%
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
Coco-caprylate/caprate22.8%
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
Polyglyceryl-3 polyricinoleate~4.3–6.5%
Irritant · medium
Irritation risk
Medium
Works for
Cleansing

Helps oil and water mix together

More about Polyglyceryl-3 polyricinoleate
Isostearic acid~3.7–5.5%
Formula
Irritation risk
Low
Works for
Cleansing

Used to create a nice product texture

More about Isostearic acid
Caprylic/capric triglyceride~2.9–4.4%
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
Dimethicone~2.2–3.3%
Key active
Irritation risk
Low
Works for
MoisturizingMattifying

A silicone that helps to reduce water loss from the surface of the skin. Can temporarily "fill in" lines and wrinkles, absorb oil, and create a nice product finish

More about Dimethicone
Ethylhexyl palmitate~1.7–2.6%
Key activeComedogenic 3/5
Irritation risk
Low
Comedogenicity
3/5
Works for
Moisturizing

An emollient that helps soften the skin and create a nice product texture

More about Ethylhexyl palmitate
Butylene glycol~1.4–2.1%
Formula
Irritation risk
Low
Works for
Moisturizing

Used to create a nice product texture and help delivery of other ingredients. Might be somewhat helpful in attracting water to the upper layer of the skin

More about Butylene glycol
Peg-30 dipolyhydroxystearate~1.2–1.8%
Irritant · medium
Irritation risk
Medium
Works for
Cleansing

Helps oil and water mix together

More about Peg-30 dipolyhydroxystearate
Cera alba~1.2–1.9%
Key activeIrritant · medium
Irritation risk
Medium
Works for
MoisturizingCleansing

Forms a protective barrier that holds water and keeps dry skin hydrated. Keeps an emulsion from separating into its oil and liquid components, and increases the thickness of a product. Can be an allergen

More about Cera alba
Beeswax~0.9–1.35%
Key active
Irritation risk
Low
Works for
Moisturizing

Forms a protective barrier that holds water and keeps dry skin hydrated. Keeps an emulsion from separating into its oil and liquid components, and increases the thickness of a product. Can be an allergen

More about Beeswax
Glycerin~0.55–1.25%
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
Polyethylene~0.55–1.3%
Formula
Irritation risk
Low

Used to thicken the product's texture

More about Polyethylene
Gluconolactone~0.35–0.85%
Under-dosedIrritant · medium
Irritation risk
Medium
Works for
MoisturizingExfoliationEvens skin toneAnti-agingAnti-blemishAnti-oxidation

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
Sodium benzoate~0.25–0.5%
Formula
Irritation risk
Low

A preservative

More about Sodium benzoate
Calcium gluconate~0.2–0.8%
Formula
Irritation risk
Low
Works for
Moisturizing

Helps attract water to the upper layer of the skin and helps to improve appearance of the product

More about Calcium gluconate
Rosa canina seed oil~0.2–0.75%
Key activeIrritant · medium
Irritation risk
Medium
Works for
MoisturizingAnti-inflammatoryAnti-oxidation

A plant oil that helps soften the upper layer of the skin. It might have anti-oxidant properties. Might help reduce inflammation in skin and help against blemishes

More about Rosa canina seed oil
Persea gratissima oil~0.15–0.65%
Under-dosedIrritant · medium
Irritation risk
Medium
Works for
Moisturizing

An emollient that helps soften the skin and could be helpful in repairing its barrier function

More about Persea gratissima oil
Hyaluronic acid~0.1–0.4%
Key active
Irritation risk
Low
Works for
MoisturizingAnti-inflammatoryAnti-aging

One of the best moisturizing ingredients. Attracts water into the upper layer of the skin. Naturally present in skin. Typically has large molecule size unless advertised otherwise on the product label. Helps support skin's barrier function and may help to reduce inflammation

More about Hyaluronic acid
Naturally derived vanilla
Not recognized
Parfum~0.05–0.2%
Irritant · high
Irritation risk
High

An aromatic blend of unspecified and possibly irritating ingredients

More about Parfum
Glyceryl oleate~0.05–0.3%
Irritant · high
Irritation risk
High
Works for
Cleansing

Helps oil and water mix together. Can be irritating

More about Glyceryl oleate
Xanthan gum~0.05–0.2%
Formula
Irritation risk
Low
Works for
Cleansing

Used to create a thicker product consistency

More about Xanthan gum
Ingredient list view

Zinc oxide, Coco-caprylate/caprate, Polyglyceryl-3 polyricinoleate, Isostearic acid, Caprylic/capric triglyceride, Dimethicone, Ethylhexyl palmitate, Butylene glycol, Peg-30 dipolyhydroxystearate, Cera alba, Beeswax, Glycerin, Polyethylene, Gluconolactone, Sodium benzoate, Calcium gluconate, Rosa canina seed oil, Persea gratissima oil, Hyaluronic acid, Unknown, Parfum, Glyceryl oleate, Xanthan gum

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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 & StoneSalt Stone SPF 30 Sunscreen LotionYOUR PRODUCTDr Dennis GrossSkincare All Physical Lightweight Wrinkle Defense SPF30Naked SundaysSPF50+ COLLAGEN GLOW 100% MINERAL LOTIONBABORProtect RX Mineral SPF30 Sunscreen
Match—56%55%54%
Price$23.80$54.73+$30.93$38.00+$14.20$49.00+$25.20
Shared key ingredients—5 of 103 of 104 of 10
Key difference—Ferulic Acid—Bisabolol
Irritancy Medium Low Low Low
SPFSPF 30SPF 30SPF 50SPF 30
Drying alcohol————
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Product summary

We believe that "Salt & Stone - Salt Stone SPF 30 Sunscreen Lotion" can provide reliable sun protection based on the ingredients listed. 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).

This product 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 sunscreen 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 formulation includes some common irritants, including ingredients that do not provide a benefit for the skin. We assess the overall irritancy of this sunscreen to be medium. 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 for 24.00$ in the United States and for 18.00£ 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 27 studies and safety reviews.

  1. 1
    A review of inorganic UV filters zinc oxide and titanium dioxideonlinelibrary.wiley.com
  2. 2
    Risk assessment of zinc oxide, a cosmetic ingredient used as a UV filter of sunscreensncbi.nlm.nih.gov
  3. 3
    Characterization of the UVA protection provided by avobenzone, zinc oxide, and titanium dioxide in broad-spectrum sunscreen productsncbi.nlm.nih.gov
  4. 4
    Ultraviolet Protection Properties of Commercial Sunscreens and Sunscreens Containing Zno Nanorodsiopscience.iop.org
  5. 5
    ZnO nanoparticles and organic chemical UV-filters are equally well tolerated by human immune cellsncbi.nlm.nih.gov
  6. 6
    Safety Assessment of Alkyl Esters as Used in Cosmeticscir-safety.org
Salt & Stone Salt Stone SPF 30 Sunscreen Lotion
Salt & StoneSalt Stone SPF 30 Sunscreen Lotion
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As an Amazon Associate, WIMJ earns from qualifying purchases.