Works for:
based on ingredients and %- Sun protection
- Anti-aging
- Moisturizing
- Evens skin tone
Can it cause trouble?
- Irritation risk: medium
- Comedogenic risk ingredients: 1
Key actives
Product Summary
Based on the ingredient list, we assess that "Decree - Day Shield SPF 30" 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).
Because it includes good moisturizing ingredients, it can also work as a hydrating day cream. Like all broad-spectrum sunscreens, this product helps prevent early signs of aging.
Sunscreen filters
This is a "mixed" sunscreen in the sense that it uses both mineral and organic (so-called "chemical") sun filters. The organic filters in the product are: butyloctyl salicylate. As for the mineral filters, this sunscreen uses both titanium dioxide and zinc oxide.
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 product 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 from 103.50$ up to 224.00$ in the United States, for 75.00£ in the United Kingdom and for 131.30CA$ in Canada.
For a detailed price comparison: click here.
Anti-aging
What does the product description say?
UV filter, titanium dioxide is blended with sunscreen zinc oxide to ensure your complexion is shielded, whilst the addition of collagen-protective peptides and antioxidants keeps your skin firm and supple.
Source: The decree
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.
These ingredients in the product might also be helpful for reducing and preventing fine lines, wrinkles, and skin elasticity, even though there is no conclusive evidence for their effectiveness: palmitoyl tetrapeptide-7, palmitoyl tripeptide-1.
A type of peptide. Peptides are excellent moisturizers and might be able support collagen production reducing fine lines and wrinkles
A type of peptide. Peptides are excellent moisturizers and might be able support collagen production reducing fine lines and wrinkles
Can contain potent anti-oxidant compounds (abbreviated ECG, GCG, EGC, and EGCG) that might help protect the skin from free radicals. Can help calm down inflammation and has some anti-bacterial properties. Unfortunately, these antioxidants are unstable and lose their effectiveness very quickly in products. The concentration of the antioxidant compounds in the extract also tends to be low to be effective in topical formulation
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
Evens skin tone
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).
Can contain potent anti-oxidant compounds (abbreviated ECG, GCG, EGC, and EGCG) that might help protect the skin from free radicals. Can help calm down inflammation and has some anti-bacterial properties. Unfortunately, these antioxidants are unstable and lose their effectiveness very quickly in products. The concentration of the antioxidant compounds in the extract also tends to be low to be effective in topical formulation
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
Moisturizing
What does the product description say?
Rose water adds a refreshing and hydrating boost.
Source: The decree
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 lactate.
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, dimethicone.
The following ingredients in this product are especially good for supporting the skin barrier and helping with the hydration level: palmitoyl tetrapeptide-7, palmitoyl tripeptide-1
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
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
A type of peptide. Peptides are excellent moisturizers and might be able support collagen production reducing fine lines and wrinkles
Softens the upper layer of skin and helps restore the healthy skin barrier. Has shown to help calm down inflammation in skin. It is a stable oil, meaning that it retains its properties even when exposed to air.
Helps attract water to the upper layer of the skin. Is often used to adjust the pH level of the product
An oil naturally present in skin. Works as an emollient to soften the skin and form a protective layer on its surface without a greasy feeling.
A type of peptide. Peptides are excellent moisturizers and might be able support collagen production reducing fine lines and wrinkles
One of the best moisturizing ingredients. Naturally present in skin. It attracts water to the upper layer of the skin working as a humectant
Helps soften the upper layer of the skin
Helps soften the upper layer of the skin
A non-drying alcohol that works to soften the skin and stabilize product formulations helping oil and water mix together
Helps to soften the upper layer of the skin without creating a greasy texture
An emollient that can also help water and oil mix together, as well as prevent bacteria growth in products
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
Used to add a nice rose smell to the product. Might help attract water to the upper layer of the skin and have some anti-oxidant effect. Can be irritating
Can contain potent anti-oxidant compounds (abbreviated ECG, GCG, EGC, and EGCG) that might help protect the skin from free radicals. Can help calm down inflammation and has some anti-bacterial properties. Unfortunately, these antioxidants are unstable and lose their effectiveness very quickly in products. The concentration of the antioxidant compounds in the extract also tends to be low to be effective in topical formulation
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
Helps oil and water mix together and works as an emollient
Sun protection
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.
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
Works as a UV filter when used in high concentrations. It is photostable and is effective mostly against the UVB light, with some protection in the UVA range. In small concentrations, used for its ability to improve the color of cosmetic products. Is usually well tolerated by the skin
A synthetic ester of salicylic acid that is used to help disperse pigments and boost effectiveness of sunscreen ingredients. It is able to absorb UV light (working as an organic, or chemical filter), but is not approved as a sunscreen ingredient on its own
Anti-oxidation
This product contains antioxidants (camellia sinensis leaf extract) that might be able to help neutralize free radicals in skin to lessen the damage it gets from the UV light (sun). There is not enough evidence to confirm their effectiveness in skin though.
Can contain potent anti-oxidant compounds (abbreviated ECG, GCG, EGC, and EGCG) that might help protect the skin from free radicals. Can help calm down inflammation and has some anti-bacterial properties. Unfortunately, these antioxidants are unstable and lose their effectiveness very quickly in products. The concentration of the antioxidant compounds in the extract also tends to be low to be effective in topical formulation
Used to add a nice rose smell to the product. Might help attract water to the upper layer of the skin and have some anti-oxidant effect. Can be irritating
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
How honest is this product?
| Promise | Can it deliver? |
|---|---|
| Sun protection | |
| Anti-aging | |
| Moisturizing |
Total Promises Fulfilled score: 90/100.
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Potential irritants
Comedogenic ingredients
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| Product | Similarity | Price | Irritancy |
|---|---|---|---|
 Decree Day Shield SPF 30 | Current | $75.00 | |
Dr Dennis Gross Skincare All Physical Lightweight Wrinkle Defense SPF30 | 42% | $41.40 | |
Exuviance Sheer Daily Protector SPF 50 1.7 Ounce | 41% | $33.73 | |
 NEOSTRATA Sheer Physical Protection SPF 50 | 41% | $-1.00 | |
 Colorescience Tint du Soleil SPF 30 - Light | 38% | $39.99 | |
 Exuviance Professional Total Correct Day SPF 30 | 38% | $62.90 |
Key Actives
Potential irritants
Comedogenic ingredients
All ingredients
Ingredient list view
Titanium dioxide, Zinc oxide, Water, Butyloctyl salicylate, Glycerin, Dimethicone, Propanediol, Caprylic/capric triglyceride, Rosa damascena flower water, Polyglyceryl-10 oleate, Coco-caprylate/caprate, Polyhydroxystearic acid, Simmondsia chinensis seed oil, Marrubium vulgare meristem cell culture, Ethylhexylglycerin, Squalane, Camellia sinensis leaf extract, Aspalathus linearis extract, Palmitoyl tripeptide-1, Palmitoyl tetrapeptide-7, Phenoxyethanol, Aluminum stearate, Carthamus tinctorius oleosomes, Sucrose stearate, Glyceryl caprylate, Alumina, Butylene glycol, Polyglyceryl-2 caprate, Microcrystalline cellulose, Potassium cetyl phosphate, Polyglyceryl-3 polyricinoleate, Hydrolyzed wheat protein/pvp crosspolymer, Stearic acid, Polyglyceryl-3 diisostearate, Triethoxycaprylylsilane, Cellulose gum, Carbomer, Sodium lactate, Gluconolactone, Potassium sorbate, Sodium benzoate, Polysorbate 20, Cetyl alcohol, Disodium edta, Sorbic acid, Citric acid, Xanthan gum
- A review of inorganic UV filters zinc oxide and titanium dioxide
- Risk assessment of zinc oxide, a cosmetic ingredient used as a UV filter of sunscreens
- Characterization of the UVA protection provided by avobenzone, zinc oxide, and titanium dioxide in broad-spectrum sunscreen products
- Ultraviolet Protection Properties of Commercial Sunscreens and Sunscreens Containing Zno Nanorods
- ZnO nanoparticles and organic chemical UV-filters are equally well tolerated by human immune cells
- Safety assessment of Salicylic Acid, Butyloctyl Salicylate, Calcium Salicylate, C12-15 Alkyl Salicylate, Capryloyl Salicylic Acid, Hexyldodecyl Salicylate, Isocetyl Salicylate, Isodecyl Salicylate, Magnesium Salicylate, MEA-Salicylate, Ethylhexyl Salicylate, Potassium Salicylate, Methyl Salicylate, Myristyl Salicylate, Sodium Salicylate, TEA-Salicylate, and Tridecyl Salicylate
- Glycerol and the skin: holistic approach to its origin and functions
- Dimethicone as a protective ingredient in topical medications
- Final Report on the Safety Assessment of Dimethicone Copolyol
- Annex I: Clinical evidence regarding sensitisation to individual fragrance chemicals and to natural extracts
- Safety Assessment of Alkyl Esters as Used in Cosmetics
- Safety Assessment of Alumina and Aluminum Hydroxide as Used in Cosmetics
- A comparative study of gluconolactone versus benzoyl peroxide in the treatment of acne
- The Polyhydroxy Acid Gluconolactone Protects Against Ultraviolet Radiation in an In Vitro Model of Cutaneous Photoaging
- Applications of hydroxy acids: classification, mechanisms, and photoactivity
- The efficacy of glycolic acid, salicylic acid, gluconolactone, and licochalcone A combined with 0.1% adapalene vs adapalene monotherapy in mild-to-moderate acne vulgaris: a double-blinded within-person comparative study
- A polyhydroxy acid skin care regimen provides antiaging effects comparable to an alpha-hydroxyacid regimen
- The use of polyhydroxy acids (PHAs) in photoaged skin
- Blackwell Publishing, Ltd. Alpha-hydroxyacids and carboxylic acids
- An evaluation of a polyhydroxy acid skin care regimen in combination with azelaic acid 15% gel in rosacea patients
- Aging Skin: Causes, Treatments, and Prevention
- Clinical and cosmeceutical uses of hydroxyacids
- Polyhydroxy Acids (PHAs) Provide Conditioning Effects to Skin Without Increasing Sensitivity to UV Light