What's In My Jar
MDSolarSciences Solar Stick SPF40
MDSolarSciences

MDSolarSciences Solar Stick SPF40

SPF 40Efficacy90/100IrritancyMedium·3 UV filters
See all ingredients
Edit

Works for

2 of 2 advertised claims delivered

Sun protection
SPF 40 · 3 UV filters
Broad spectrum
SPF 40Broad spectrumMineral + chemical filtersWater-resistant

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.

UV spectrum
UVB290–320 nmUVA II320–340 nmUVA I340–400 nm
Butyloctyl Salicylate
Titanium Dioxide
Zinc Oxide
FilterCoverageWhat it doesEst. amount
Butyloctyl SalicylateUVBA 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~5.6–8.4%
Titanium Dioxide Mineral UVBUVA2 Photo-stable 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 skin8.12%
Zinc Oxide Mineral UVBUVA Photo-stable 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 colorant6%
~ marks concentrations estimated from label position and typical use levels
Reef-safe
No oxybenzone or octinoxate — the two filters banned in Hawaii, Florida Keys and Aruba.
Anti-aging
3 ingredients credited for this claim
Strong support
What the product description says
“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.

Butyrospermum parkii butterEffect: LowA 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~3–4.5%
Tetrahexyldecyl ascorbateUnder-dosedEffect: HighBeing 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.~0.8–1.2%
TocopherolEffect: Low, below effective dosePure 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~0.5–1.15%
Moisturizing
Not advertised by the brand · 9 ingredients credited for this claim
Strong support

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

DimethiconeKey active· Emollient, OcclusiveEffect: HighA 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~5.9–8.9%
PetrolatumHero· Emollient, OcclusiveEffect: HighOne of the most effective and the most studied occlusive ingredients that creates a protective layer on top of the skin preventing moisture loss~4–6%
Butyrospermum parkii butterKey active· Emollient, OcclusiveEffect: HighA 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~3–4.5%
Caprylic/capric triglycerideKey active· Emollient, OcclusiveEffect: HighA good mix of fatty acids that forms a protective layer on the skin. Improves the shelf life of products. Derived from coconut and glycerin~2.3–3.5%
Methyl dihydroabietateKey activeEffect: MediumHelps soften the upper layer of the skin~1.6–2.4%
C12-15 alkyl benzoateKey active· EmollientEffect: MediumEnhances 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~2.5–3.8%
Octyldodecanol· EmollientEffect: LowAn emollient that helps to soften the skin and create a pleasant product texture and stabilize the formulation~1–1.5%
Stearic acidEffect: Low, below effective doseHelps oil and water mix together and works as an emollient~0.45–1.05%
TocopherolEffect: Low, below effective dosePure 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~0.5–1.15%
Evens skin tone
Not advertised by the brand · 1 ingredient credited for this claim
Strong support

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).

Tetrahexyldecyl ascorbateUnder-dosedEffect: HighBeing 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.~0.8–1.2%

Can it cause trouble?

Irritancy
1 strong irritant: Sorbitan sesquioleate
Medium risk
We flagged 6 ingredients with irritancy potential. Severity depends on your sensitivity threshold; the table lists the worst offenders first.
IngredientFunctionIrritationEst. amount
Sorbitan sesquioleateUsed to help oil and water mix together. Can be irritatingHigh~0.15–0.65%est.
Butyloctyl salicylateA 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 ownMedium~5.6–8.4%est.
Caprylic/capric triglycerideA good mix of fatty acids that forms a protective layer on the skin. Improves the shelf life of products. Derived from coconut and glycerinMedium~2.3–3.5%est.
Tetrahexyldecyl ascorbateBeing 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.Medium~0.8–1.2%est.
Polyhydroxystearic acidUsed to create a thicker product consistency and stabilize the formulationMedium~0.1–0.35%est.
Citric acidCan work as an exfoliant but is typically used to adjust the product pHMedium~0.05–0.2%est.
Comedogenic
1 ingredient rated 2 or more on the 0–5 pore-clogging scale
1 flagged
These ingredients have a comedogenic rating of 2 or more on a 0–5 scale; the table shows each one's rating. In leave-on products they can clog pores in acne-prone skin.
IngredientFunctionRatingEst. amount
Butyrospermum parkii butterA 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 radicals3/5~3–4.5%est.
Edit
Cheaper Alternatives
Similar formulations, better price
No cheaper similar product found.

User reviews

Would you recommend?
No community reviews yet.

Be the first — your take helps the next person decide.

Write a review · ~30s

Ingredients

Filter by role to see what each ingredient is doing.

Titanium dioxide8.12%
UV filterKey active
Irritation risk
Low
Works for
Sun protection

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

More about Titanium dioxide
Zinc oxide6%
UV filterKey active
Irritation risk
Low
Works for
Sun protection

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

More about Zinc oxide
Polyethylene~22–34%
Formula
Irritation risk
Low

Used to thicken the product's texture

More about Polyethylene
Dimethicone~5.9–8.9%
Key active
Irritation risk
Low
Works for
MoisturizingMattifying

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

More about Dimethicone
Butyloctyl salicylate~5.6–8.4%
UV filterKey activeIrritant · medium
Irritation risk
Medium
Works for
Sun protection

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

More about Butyloctyl salicylate
Petrolatum~4–6%
Hero · Moisturizing
Irritation risk
Low
Works for
Moisturizing

One of the most effective and the most studied occlusive ingredients that creates a protective layer on top of the skin preventing moisture loss

More about Petrolatum
Butyrospermum parkii butter~3–4.5%
Key activeComedogenic 3/5
Irritation risk
Low
Comedogenicity
3/5
Works for
MoisturizingAnti-agingAnti-oxidation

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

More about Butyrospermum parkii butter
C12-15 alkyl benzoate~2.5–3.8%
Key active
Irritation risk
Low
Works for
Moisturizing

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

More about C12-15 alkyl benzoate
Caprylic/capric triglyceride~2.3–3.5%
Key activeIrritant · medium
Irritation risk
Medium
Works for
Moisturizing

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

More about Caprylic/capric triglyceride
Methyl dihydroabietate~1.6–2.4%
Key active
Irritation risk
Low
Works for
Moisturizing

Helps soften the upper layer of the skin

More about Methyl dihydroabietate
Acrylates/ethylhexyl acrylate/dimethicone methacrylate copolymer~1.2–1.8%
Formula
Irritation risk
Low
More about Acrylates/ethylhexyl acrylate/dimethicone methacrylate copolymer
Octyldodecanol~1–1.5%
Formula
Irritation risk
Low
Works for
Moisturizing

An emollient that helps to soften the skin and create a pleasant product texture and stabilize the formulation

More about Octyldodecanol
Tetrahexyldecyl ascorbate~0.8–1.2%
Under-dosedIrritant · medium
Irritation risk
Medium
Works for
Anti-agingAnti-oxidationEvens skin tone

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.

More about Tetrahexyldecyl ascorbate
Tocopherol~0.5–1.15%
Formula
Irritation risk
Low
Works for
Anti-oxidationAnti-inflammatoryAnti-agingMoisturizing

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

More about Tocopherol
Behenyl olivate~0.45–1.05%
Formula
Irritation risk
Low
More about Behenyl olivate
Aluminum hydroxide~0.5–1.2%
Formula
Irritation risk
Low

Is used to add opaque (non-transparent) appearance to formulations. Can be used to coat other ingredients for even dispersion. This is a different ingredient compared to the ones used in antipersperants (aluminium chloride and aluminium chlorohydrate)

More about Aluminum hydroxide
Stearic acid~0.45–1.05%
Formula
Irritation risk
Low
Works for
CleansingMoisturizing

Helps oil and water mix together and works as an emollient

More about Stearic acid
Sorbitan sesquioleate~0.15–0.65%
Irritant · high
Irritation risk
High
Works for
Cleansing

Used to help oil and water mix together. Can be irritating

More about Sorbitan sesquioleate
Glyceryl isostearate~0.15–0.65%
Formula
Irritation risk
Low
Works for
Cleansing
More about Glyceryl isostearate
Polyhydroxystearic acid~0.1–0.35%
Irritant · medium
Irritation risk
Medium
Works for
Cleansing

Used to create a thicker product consistency and stabilize the formulation

More about Polyhydroxystearic acid
Citric acid~0.05–0.2%
Irritant · medium
Irritation risk
Medium

Can work as an exfoliant but is typically used to adjust the product pH

More about Citric acid
Benzylidene dimethoxydimethylindanone~0.05–0.2%
Formula
Irritation risk
Low
More about Benzylidene dimethoxydimethylindanone
Ingredient list view

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

Compare prices

Retailers ranked by price — lowest first.

No pricing data available yet for this product.
Cheaper alternatives? See how this stacks up against similar formulas.
We compare ingredient profiles across our catalog — pick the closest match for your budget.
Open dupe finder

Product summary

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.

Sunscreen filters

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.

Irritation risk

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.

Price

The product retails for 22.00$ in the United States.

For a detailed price comparison: click here.

Sources cited in this review

Every concentration estimate and effectiveness label is anchored to one of these 14 studies and safety reviews.

  1. 1
    A review of inorganic UV filters zinc oxide and titanium dioxideonlinelibrary.wiley.com
  2. 2
    Risk assessment of zinc oxide, a cosmetic ingredient used as a UV filter of sunscreensncbi.nlm.nih.gov
  3. 3
    Characterization of the UVA protection provided by avobenzone, zinc oxide, and titanium dioxide in broad-spectrum sunscreen productsncbi.nlm.nih.gov
  4. 4
    Ultraviolet Protection Properties of Commercial Sunscreens and Sunscreens Containing Zno Nanorodsiopscience.iop.org
  5. 5
    ZnO nanoparticles and organic chemical UV-filters are equally well tolerated by human immune cellsncbi.nlm.nih.gov
  6. 6
    Dimethicone as a protective ingredient in topical medicationsjaad.org
MDSolarSciences Solar Stick SPF40
MDSolarSciencesSolar Stick SPF40
Find on Amazon

Affiliate links · As an Amazon Associate, WIMJ earns from qualifying purchases.

Find on Amazon

As an Amazon Associate, WIMJ earns from qualifying purchases.