

We assess that "Skin Authority - Daily Defense Moisturizer SPF 30" can provide reliable sun protection based on the ingredient list. We love that it can protect from both UVA and UVB rays (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 also works as a moisturizer, so you do not have to use an additional hydrating product. Like all broad-spectrum sunscreens, this product has an anti-aging benefit.
This is a so-called "chemical" sunscreen. It means that it uses organic UV filters. They typically offer good sun protection and rarely leave a white cast, but they can be irritating for some people with sensitive skin. These are the sun protection ingredients in this sunscreen: oxybenzone 6.00% (declared), avobenzone 3.00% (declared), butyloctyl salicylate 1.70% - 2.10%, octinoxate 7.50% (declared), octisalate 5.00% (declared), homosalate 7.00% (declared) and octocrylene 3.00% (declared).
This formulation includes some common irritants, including ingredients that do not provide a benefit for the skin. We assess the overall irritancy of this moisturizer 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.
The product retails from 11.00$ up to 69.66$ in the United States, for 142.85A$ in Australia, from 13.20CA$ up to 57.60CA$ in Canada and for 32.76£ in the United Kingdom.
For a detailed price comparison: click here.
This daily moisturizer protects against both UVA and UVB damage to help slow down the signs of aging and to help control hyperpigmentation and skin cancer development.
Source: Skinstore
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.
Plant extract that helps the skin to attract water and make it more smooth for touch. Also shows promise of anti-aging properties, but research is not extensive yet
Pure form of vitamin E. Can help moisturise and protect the skin from free radicals. Often used to help stabilise other ingredients or the formula itself
Traditionally used to treat sunburns, dermatitis and inflammation, but evidence for its effectiveness is lacking. The extract can contain humectants that help attract water into the skin
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).
Daily Defense Moisturizer SPF 30
Source: From product name
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:
algae extract, cyclomethicone.
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: dimethicone, algae extract.
The following ingredients in this product are especially good for supporting the skin barrier and helping with the hydration level: panthenol
A type of silicone that leaves a nice silky finish on the skin and can help soften its upper layer
Plant extract that helps the skin to attract water and make it more smooth for touch. Also shows promise of anti-aging properties, but research is not extensive yet
A silicone that mixes with water creating nice light-weight product texture
Helps attract water to the upper layer of the skin and can help improve skin barrier function
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
Enhances the product texture and makes it more spreadable. Helps reduce water loss from the outer layer of skin. Extands the shelf life by preventing bacteria growth
Helps preserve products and creates a nice product texture
Pure form of vitamin E. Can help moisturise and protect the skin from free radicals. Often used to help stabilise other ingredients or the formula itself
Traditionally used to treat sunburns, dermatitis and inflammation, but evidence for its effectiveness is lacking. The extract can contain humectants that help attract water into the skin
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.
A weak sunscreen that protects against the sun rays that cause sunburn (UVB) and is somewhat effective against the UVA rays. It is quite stable and can help stabilize other, more vulnerable, sunscreen ingredients like Avobenzone. It is an organic, or so called "chemical" sunscreen
Avobenzone. An organic, or so-called "chemical" UV filter. Protects against both UVA and UVB rays. Needs to be combined with other filters in a formulation to be stable.
Same as oxybenzone. Protects in the UVB and short UVA range. In small concentrations, used to stabilize product formulation. Can be irritating. Is shown to be harmful to coral reefs - consider avoiding bathing in coral reef areas when wearing a product with this ingredient. It can penetrate the skin and get absorbed into bloodstream faster than other popular filters available in the US. The study that produced this finding did not address any potential health effects of the absorption
A weak sunscreen that offers some protection against the sun rays that cause sunburn (UVB), but does not offer meaningful protection against 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. When used in low concentrations, helps to stabilize the product formulation
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
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
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
| Promise | Can it deliver? |
|---|---|
| Sun protection | |
| Anti-aging |
Total Promises Fulfilled score: 100/100.
We receive a small commission for purchases made through these links at no cost for you. Thank you for your support! Learn more
Averages from community submissions.
No reviews yet for this product.
Be the first to share your experience!
Help capture what the ingredient list can't—texture, finish, pilling, scent, and more. Answer what you can, skip the rest.
Takes ~30 seconds.
Reviews are shown in aggregate. No personal details.
| Product | Similarity | Price | Irritancy |
|---|---|---|---|
Skin Authority Daily Defense Moisturizer SPF 30 | Current | $11.00 | |
![]() DCL Skincare Essential SPF30 Water Resistant UVA/UVB Protection Skin Protection Cream | 61% | $44.00 | |
![]() Olay Total Effects Whip Face Moisturizer with Sunscreen SPF 40 | 59% | $16.99 | |
![]() PharmaClinix Sun Blockex SPF 50 Cream | 59% | $39.99 | |
Peter Thomas Roth Max Sheer Moisture Defense Lotion SPF30 | 58% | $28.00 | |
![]() YourGoodSkin SPF30 Anti-Oxidant Day Cream | 58% | $8.00 |
Butyl methoxydibenzoylmethane, Homosalate, Ethylhexyl methoxycinnamate, Ethylhexyl salicylate, Octocrylene, Benzophenone-3, Water, Tapioca starch, Sd alcohol 40, C12-15 alkyl benzoate, Dipropylene glycol dibenzoate, Ppg-15 stearyl ether benzoate, Butyloctyl salicylate, Cyclomethicone, Peg/ppg-18/18 dimethicone, Silica, Vp/hexadecene copolymer, Aloe barbadensis leaf juice, Algae extract, Panthenol, Tocopheryl acetate, Tocopherol, Dimethicone, Polysorbate 80, Isostearic acid, Triethanolamine, Tetrasodium edta, Acrylates/c10-30 alkyl acrylate crosspolymer, Caprylyl glycol, Ethylhexylglycerin, Hexylene glycol
