Dr. Teo Soleymani

In my personal practice and for my family, I tend to only recommend mineral zinc or zinc and titanium sunscreens for several reasons. In the original set of sunscreens that were approved by the FDA that came out in 1999, there wasn't enough data to look at biologic effects, efficacy, internal organ involvement, et cetera.

Fast forward 20 years, and we've gathered a lot more information about these chemical organic compounds. There is an amazing 2020 study that looked at absorption of chemical sunscreens when they're applied onto the skin. They looked at absorption with single application, and they looked at absorption over four days of application. Now, in this study, they applied a little bit more than...

Fast forward 20 years, and we've gathered a lot more information about these chemical organic compounds. There is an amazing 2020 study that looked at absorption of chemical sunscreens when they're applied onto the skin. They looked at absorption with single application, and they looked at absorption over four days of application. Now, in this study, they applied a little bit more than...

Fast forward 20 years, and we've gathered a lot more information about these chemical organic compounds. There is an amazing 2020 study that looked at absorption of chemical sunscreens when they're applied onto the skin. They looked at absorption with single application, and they looked at absorption over four days of application. Now, in this study, they applied a little bit more than...

real world experience would, but even with single application, they saw blood plasma absorption of these chemicals that were 100 to 500 times greater than the upper threshold defined by the FDA. Now the question exists, okay, what does that mean? Is this healthy? Is this not healthy? Is it neither?

real world experience would, but even with single application, they saw blood plasma absorption of these chemicals that were 100 to 500 times greater than the upper threshold defined by the FDA. Now the question exists, okay, what does that mean? Is this healthy? Is this not healthy? Is it neither?

real world experience would, but even with single application, they saw blood plasma absorption of these chemicals that were 100 to 500 times greater than the upper threshold defined by the FDA. Now the question exists, okay, what does that mean? Is this healthy? Is this not healthy? Is it neither?

That's still up for debate, but in looking at the more recent literature and looking at the chemical structure of these compounds, a lot of these are phenolic compounds, meaning they have one or two, usually two benzene rings attached together, and they look very similar to one another.

That's still up for debate, but in looking at the more recent literature and looking at the chemical structure of these compounds, a lot of these are phenolic compounds, meaning they have one or two, usually two benzene rings attached together, and they look very similar to one another.

That's still up for debate, but in looking at the more recent literature and looking at the chemical structure of these compounds, a lot of these are phenolic compounds, meaning they have one or two, usually two benzene rings attached together, and they look very similar to one another.

There's been a lot of basic science, animal study, and retrospective human studies in the last two or three years that suggest that some of these chemical compounds, particularly oxybenzone, particularly octocrylene, particularly octinoxinate, that can have endocrine disruption or affect the nervous system because they mimic a lot of biologic phenolic compounds and a lot of biologic hormones.

There's been a lot of basic science, animal study, and retrospective human studies in the last two or three years that suggest that some of these chemical compounds, particularly oxybenzone, particularly octocrylene, particularly octinoxinate, that can have endocrine disruption or affect the nervous system because they mimic a lot of biologic phenolic compounds and a lot of biologic hormones.

There's been a lot of basic science, animal study, and retrospective human studies in the last two or three years that suggest that some of these chemical compounds, particularly oxybenzone, particularly octocrylene, particularly octinoxinate, that can have endocrine disruption or affect the nervous system because they mimic a lot of biologic phenolic compounds and a lot of biologic hormones.

If you actually look at the structure of oxybenzone, it looks very similar to the structure of bisphenol A, which has been now banned in a lot of the lining of plastic bottles. Why? Because of the same concept. Now, the data is not... 100% one way or another, but there's enough smoldering evidence that makes me think, hmm, we should reinvestigate this.

If you actually look at the structure of oxybenzone, it looks very similar to the structure of bisphenol A, which has been now banned in a lot of the lining of plastic bottles. Why? Because of the same concept. Now, the data is not... 100% one way or another, but there's enough smoldering evidence that makes me think, hmm, we should reinvestigate this.

If you actually look at the structure of oxybenzone, it looks very similar to the structure of bisphenol A, which has been now banned in a lot of the lining of plastic bottles. Why? Because of the same concept. Now, the data is not... 100% one way or another, but there's enough smoldering evidence that makes me think, hmm, we should reinvestigate this.

And in fact, the FDA's proposed final order in 2021 changed these chemicals from grace, generally recognized as safe and effective, to not grace because of these concerns. There's data that suggests that the chemicals are found in breast milk, amniotic fluid, blood plasma, urine. So there's a lot of things that we don't know.

And in fact, the FDA's proposed final order in 2021 changed these chemicals from grace, generally recognized as safe and effective, to not grace because of these concerns. There's data that suggests that the chemicals are found in breast milk, amniotic fluid, blood plasma, urine. So there's a lot of things that we don't know.

And in fact, the FDA's proposed final order in 2021 changed these chemicals from grace, generally recognized as safe and effective, to not grace because of these concerns. There's data that suggests that the chemicals are found in breast milk, amniotic fluid, blood plasma, urine. So there's a lot of things that we don't know.

And I always say this in science, we take two steps forward and then maybe one step diagonally or sideways because we ran into unexpected things. I tend to recommend mineral sunscreens because they don't have any of that data. They haven't for the last 30, 40 years. They're considered safe. And in fact,