Salt & Stone - Lightweight Sheer Daily Sunscreen SPF 40

Salt & Stone Lightweight Sheer Daily Sunscreen SPF 40

SPF 40
PROMISES
FULFILLED
90 /100
IRRITANCY
HIGH
Works for
  • Anti-aging
  • Sun protection
  • Evens skin tone
  • Moisturizing
Key ingredients
  • bisabolol
  • butyrospermum parkii butter
  • camellia sinensis leaf extract
  • capryloyl glycerin/sebacic acid copolymer
+ 12 more
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Formula review

WIMJ summary

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.

Non-organic (mineral) filters
Ingredient UVB UVA I UVA II Stability
zinc oxide
Offers UVB protection
Offers UVA I protection
Offers UVA II protection
Is photo stable
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WIMJ summary

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.

Ingredient Effectiveness Concentration Irritancy
LOW
meets threshold
LOW
does not meet threshold
LOW
does not meet threshold
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WIMJ summary

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).

Ingredient Effectiveness Concentration Irritancy
LOW
does not meet threshold
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Promise
What does the product description say?
"A 100% mineral, oil-free, sheer sunscreen moisturizer that provides SPF 40 protection while helping to protect from blue light."
WIMJ summary

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, sodium hyaluronate.

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: butyrospermum parkii butter, cocos nucifera oil.

Ingredient Effectiveness Concentration Irritancy
HIGH
meets threshold
HIGH
meets threshold
HIGH
meets threshold

Potential irritants

IRRITANCY
HIGH

Ingredients by volume

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
Plain old water
An emollient. Found to be as effective as a moisturizer for dry skin as mineral oil. Could be comedogenic

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