Jack Black - Oil-Free Sun Guard SPF45

Jack Black Oil-Free Sun Guard SPF45

SPF 45
WORKS FOR
  • Sun protection
  • Evens skin tone
  • Moisturizing
KEY INGREDIENTS
  • retinyl palmitate
  • cyclomethicone
  • cyclopentasiloxane
  • ethylhexyl methoxycinnamate
  • zinc oxide
  • +2 more
PROMISES
FULFILLED
90 /100
IRRITANCY
HIGH
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Where to buy?

In stock $21.00
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Price as of 7/30/2021 12:27 GMT. More info
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Formula review

WIMJ summary

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

This sunscreen uses organic (so-called "chemical") sunscreen filters. Organic, or "chemical" filters usually provide reliable sun protection and rarely leave a white cast. Sunscreens with organic filters can sting eyes.

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.

Organic filters
Ingredient UVB UVA I UVA II Stability
ethylhexyl methoxycinnamate
Offers UVB protection
Does not offer UVA I protection
Does not offer UVA II protection
Is photo stable
ethylhexyl salicylate
Offers UVB protection
Does not offer UVA I protection
Does not offer UVA II protection
Is photo stable
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 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
MEDIUM
meets threshold
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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: cyclomethicone, butylene glycol.

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: cyclomethicone, cyclopentasiloxane.

Ingredient Effectiveness Concentration Irritancy
HIGH
meets threshold
MEDIUM
meets threshold
LOW
meets threshold

Potential irritants

Ingredients by volume

Ingredient Estimated concentration
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
8%
Declared
Octinoxate. When used in higher concentrations, works as a sunscreen protecting the skin from UVB rays. When used in lower concentration, helps to preserve the product formulation. Is shown to be harmful to coral reefs - consider avoiding bathing in coral reef areas when wearing a product with this ingredient. It can be irritating
7.5%
Declared
Octisalate. A UV filter. It offers some protection against the sun rays that cause sunburn (UVB), but does not protect against the most aging sun rays (UVA). It loses its effectiveness quickly when exposed to sunlight. It is an organic, or so called "chemical" sunscreen
3%
Declared
A plant extract that might have anti-oxidant properties
23% - 34%
7.6% - 11.5%
Plain old water
4.9% - 7.4%
A plant extract that has some anti-oxidant and anti-bacterial properties. Can be irritating
3.1% - 4.7%
A type of silicone that leaves a nice silky finish on the skin and can help soften its upper layer
2.7% - 4%
Helps soften the upper layer of the skin and improve the product consistency
2.3% - 3.4%
Three steps removed from the active form of vitamin A - retinoic acid. To have an effect in the skin, it first needs to be converted twice to become the retinoic acid. This means it is less potent than retinol, but could also be less irritating. Once converted to the retinoic acid in the skin, it helps against all signs of aging, improves skin cell turnover and helps fight blemishes and clogged pores. However, in many cosmetic formulations, it is used in a concentration that is too low to have the full effect
1.9% - 2.8%
Being a lipid soluble form of vitamin C, it is more stable and can penetrate the skin better than L-Ascorbic acid. It is effective in protecting the skin from free radicals, as well as evening the skin tone, but is less effective in stimulating collagen production compared to L-Ascorbic acid.
1.5% - 2.3%
Used to thicken the product formulation and might help to add minerals to the surface of the skin. It is used in scrubs as a physical exfoliant. Can increase sensitivity to other ingredients if left on the skin or used in high concentration
1.2% - 1.7%
A preservative. It helps prevent bacterial growth in cosmetic products
0.5% - 1%
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
0.55% - 1.35%
A preservative. Can be irritating
0.01% - 0.02%
Helps oil and water mix together
0.45% - 1.05%
A type of silicone that helps to soften upper layer of the skin and create a nice product texture
0.35% - 0.8%
A silicone that helps improve the product texture and spreadability. Can absord oil creating a short-term mattifying effect on the skin
0.3% - 0.75%
Used to stabilize product formulations and create a nice product texture
0.15% - 0.5%

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