Comparison between La Roche-Posay Double Repair Face Moisturizer UV SPF 30 vs. Alastin Hydratint Pro Mineral Broad Spectrum Sunscreen SPF 36
Find out which product is better for your skin.
29 Ingredients 34
Positive Effects
ECO Metrics
Concerns
Components by Skin Type
Detailed view
#1Avobenzone
Avobenzone is the only chemical UV-protection component with a broad spectrum coverage. It can help to block both UVA I and UVA II rays. It's safe and it is allowed to use at a 3% concentration in the USA and a 5% concentration in the EU countries.
There is one problem: avobenzone loses efficiency when exposed to the sun. If you are outside, it loses 36% of its ability to block UV rays an hour after application. That's why it's recommended to reapply sunscreen every 2 hours.
#1Titanium Dioxide
Titanium Dioxide is a very effective sunscreen. It belongs to physical sunscreens, meaning it reflects the UV rays like a mirror. The component is a mineral with white color. That’s why it’s also used in different powders as a pigment or brightener.
The component can be both safe and unsafe. It’s reported to be possibly carcinogenic to humans when inhaled. That’s why we don’t recommend using products where TiO2 is used in the form of powder and can be inhaled.
Sometimes it can be a nanoparticle. We recommend avoiding this form because it’s not researched well enough. A safer option is to use a non-nano form.
#2Homosalate
#2Zinc Oxide
Zinc Oxide is a great physical sunscreen, meaning it deflects the UV rays. It’s the only natural mineral sun protector recommended by the FDA for babies. It’s good for sensitive skin because it’s less irritating than chemical sunscreens.
It has very nice spectrum protection. It helps to protect from UVA I, UVA II, and UVB and nowadays it’s the broadest range of sunscreen used in cosmetics. In other words, it’s brilliant in its league.
The negative side is that it can feel heavy on the skin. It can leave a slight whitish tint on the surface of the skin and some people may not like this. Keep in mind that it’s relatively easy to wash off, so it’s better to use water-resistant sunscreens if you are swimming.
#4Octocrylene
Octocrylene is an organic chemical sunscreen. It protects against UVA and UVB rays that can damage your skin or even lead to melanoma. It also stabilizes other sunscreen ingredients in a formulation and increases the water resistance of a product. It is approved by the FDA in concentrations of up to 10%. It’s not a very effective component on its own, that’s why manufacturers combine it with other chemical sunscreens.
Despite its effectiveness, there are some “cons” against the component. As with any other chemical sunscreen, it is absorbed and can be detected in blood. This doesn’t mean the component is harmful, but still… Octocrylene should also be used carefully by anyone who is breastfeeding because it can be found in breast milk.
Anyway, the component isn’t researched quite well despite its popularity. More studies are required to determine how safe the component is.
Despite its effectiveness, there are some “cons” against the component. As with any other chemical sunscreen, it is absorbed and can be detected in blood. This doesn’t mean the component is harmful, but still… Octocrylene should also be used carefully by anyone who is breastfeeding because it can be found in breast milk.
Anyway, the component isn’t researched quite well despite its popularity. More studies are required to determine how safe the component is.
#4Asteriscus Graveolens Flower/fruit/leaf/stem Extract
#5Water (La Roche-Posay Prebiotic Thermal Water)
#5Butylene Glycol
Butylene Glycol is a very popular synthetic alcohol. It helps the product to absorb deeper and faster. It is also a solvent for other ingredients. As for the skin benefits, it helps to attract water and helps to make the skin softer.
Unlike many other “Glycols”, it is not harmful and that's why it is used in many products. It was approved by US FDA and US EPA for usage.