

We believe that "MDSolarSciences - Solar Stick SPF40" can provide reliable sun protection based on the ingredients listed. 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 helps prevent early signs of aging.
This sunscreen uses a mixture of both mineral and organic (so-called "chemical") UV filters. The organic filters in the product are: butyloctyl salicylate. As for the mineral filters, this sunscreen uses both titanium dioxide and zinc oxide.
There are actives in this product that can be irritating. 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.
The product retails for 22.00$ in the United States.
For a detailed price comparison: click here.
Perfect for on-the-go use, it features naturally derived mineral UV protection to prevent the visible signs of aging caused by free-radical damage, and reduce the risk of photo aging and skin cancer all at once.
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.
A great moisturising ingredient that softens the skin and reduces water loss from its upper layer. It also can be helpful in protecting skin from free radicals
Being a lipid soluble form of vitamin C, it is more stable than ascorbic acid, but still degrades quickly and needs to be stabilized in a formulation with another ingredient. It is claimed to penetrate skin better than pure vitamin C and have the the similar benefits, but solid studies of its effectiveness are lacking. Is likely to require a higher concentration in a product than pure vitamin C to be effective. It might be able to help reduce pore clogging.
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
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).
Being a lipid soluble form of vitamin C, it is more stable than ascorbic acid, but still degrades quickly and needs to be stabilized in a formulation with another ingredient. It is claimed to penetrate skin better than pure vitamin C and have the the similar benefits, but solid studies of its effectiveness are lacking. Is likely to require a higher concentration in a product than pure vitamin C to be effective. It might be able to help reduce pore clogging.
This product can help soften the skin and reduce its moisture loss with emollients and occlusives: butyrospermum parkii butter, caprylic/capric triglyceride.
Keep in mind that this product does not contain effective ingredients to attract water to the upper layer of the skin. This is why an additional product with humectants like glycerin or hyaluronic acid can be helpful (apply it before this product for the best results).
The following ingredients in this product are especially good for supporting the skin barrier and helping with the hydration level: petrolatum
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
One of the most effective and the most studied occlusive ingredients that creates a protective layer on top of the skin preventing moisture loss
A great moisturising ingredient that softens the skin and reduces water loss from its upper layer. It also can be helpful in protecting skin from free radicals
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
Helps soften the upper layer of the skin
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
An emollient that helps to soften the skin and create a pleasant product texture and stabilize the formulation
Helps oil and water mix together and works as an emollient
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
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.
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 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
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
| Promise | Can it deliver? |
|---|---|
| Sun protection | |
| Anti-aging |
Total Promises Fulfilled score: 90/100.
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| Product | Similarity | Price | Irritancy |
|---|---|---|---|
![]() MDSolarSciences Solar Stick SPF40 | Current | $22.00 | |
EltaMD UV Facial Broad-Spectrum SPF 30+ - Tube | 38% | $30.00 | |
Clinique Pep Start Daily UV Protector Broad Spectrum SPF 50 | 37% | $23.00 | |
![]() CeraVe Sunscreen Stick with SPF 50 | 37% | $8.97 | |
![]() Blue Lizard Active Mineral-Based Sunscreen * SPF 50+ | Bottle | 36% | $6.99 | |
![]() Supergoop! Sunnyscreen 100% Mineral Spray SPF 50 Baby Sunscreen | 36% | $30.00 |
Titanium dioxide, Zinc oxide, Polyethylene, Dimethicone, Butyloctyl salicylate, Petrolatum, Butyrospermum parkii butter, C12-15 alkyl benzoate, Caprylic/capric triglyceride, Methyl dihydroabietate, Acrylates/ethylhexyl acrylate/dimethicone methacrylate copolymer, Octyldodecanol, Tetrahexyldecyl ascorbate, Tocopherol, Behenyl olivate, Aluminum hydroxide, Stearic acid, Sorbitan sesquioleate, Glyceryl isostearate, Polyhydroxystearic acid, Citric acid, Benzylidene dimethoxydimethylindanone

