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Doctor insights on: Sunblock Umbrella

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Dr. Jeffrey Pollard Dr. Pollard
ENT - Head & Neck Surgery
17 years in practice
Vanderbilt University School of Medicine
2

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Can sunblock expire?

Can sunblock expire?

Possibly: It is a good idea to always follow the expiration dates on medications including skincare. Some active ingredients may breakdown into other/different active molecules over time. ...Read more

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Dr. Jeffrey Pollard Dr. Pollard
ENT - Head & Neck Surgery
17 years in practice
Vanderbilt University School of Medicine
3

3
Is there metal in sunblock?

Is there metal in sunblock?

Titanium Dioxide: Titanium is one of the physical sun blocking agents found in certain sunscreens. I recommend the physical blocks (zinc and titanium) because they have a very good safety profile and work very effectively. If you are going to be in the sun - use a minimum of spf 15 - follow product directions. ...Read more

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Dr. Jeffrey Pollard Dr. Pollard
ENT - Head & Neck Surgery
17 years in practice
Vanderbilt University School of Medicine
4

4
Can you tan with sunblock on?

Can you tan with sunblock on?

Yes: Sunscreens do not completely stop all of the uv rays from getting to the skin. Your melanin will be activated causing your skin to tan. Keep in mind that you don't need to burn to get skin damage from uv sun rays over time. ...Read more

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Dr. Maritza Baez Dr. Baez
Family Medicine
13 years in practice
University at Buffalo, The State University of New York School of Medicine & Biomedical Sciences
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What kind of sunblock works the best?|

Block UVA & UVB: An ideal sunscreen would block both uva & uvb rays with active ingredients that do not break down in the sun (so that the product remains effective), and would contain active and inactive ingredients that are proven to be safe for both adults and children. Unfortunately, there is no sunscreen that meets all of these criteria, and no simple way for consumers to know how well a given product stack. ...Read more

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Dr. Jerry Fioramonti Dr. Fioramonti
Family Medicine
years in practice
University of Illinois College of Medicine
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What is the benefit of using sunblock?

What is the benefit of using sunblock?

Many: Using sun screen has several benefits first, it can prevent sun burn which can be very painful more importantly, most forms of skin cancer are caused by an accumulation over time of the suns harmful ultra violet rays. Some of them can be deadly in addition, too much sun exposure over time causes the skin to be rough and wrinkled. ...Read more

Dr. Allison Holzapfel Dr. Holzapfel
Surgery - Plastics
18 years in practice
University of Louisville School of Medicine
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Which is better: sunscreen or sunblock?

Which is better: sunscreen or sunblock?

Both are great: Sunblock normally consists of a physical blocker like zinc or titanium oxide which block and reflect both uva and uvb rays. Sunscreen usually means a chemical screen that interacts with the uvb rays to prevent sun damage. A combination of both us very common, but for very sensitive skin, a block is sometimes better. ...Read more

Dr. Christopher Mcgraw Dr. Mcgraw
Family Medicine
24 years in practice
9

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What's the benefit of applying sunblock ?

What's the benefit of applying sunblock ?

Prevent skin cancer: Sunblock cuts down on the ultraviolet light reaching your skin which reduces the risk of skin cancers and also reduces the aging effects on the skin. ...Read more

Dr. Heidi Fowler Dr. Fowler
Psychiatry
21 years in practice
Uniformed Services University of the Health Sciences F. Edward Hebert School of Medicine
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Can you recommend a sunblock or sunscreen?

Can you recommend a sunblock or sunscreen?

High SPF: Healthtap Doctors are asked not to endorse specific brands or product lines. ...Read more

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Dr. Gregory LaMorte Dr. LaMorte
Dentistry - Periodontics
38 years in practice
New York University College of Dentistry
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Is it necessary to use sunblock in winter?

Is it necessary to use sunblock in winter?

Always: It is best to use it whenever you are outside even in winter and even on a cloudy day. ...Read more

Dr. Glynis Ablon Dr. Ablon
Dermatology
25 years in practice
George Washington University Medical School
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How long should I wait for sunblock to soak in?

How long should I wait for sunblock to soak in?

If you use zinc: based sunscreen you don't have to wait. It is physical block with instant coverage. Avobenzone takes 20 minutes to activate before coverage occurs ...Read more

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Dr. Otto Placik Dr. Placik
Surgery - Plastics
30 years in practice
Northwestern University Feinberg School of Medicine
13

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What's the difference between sunblock or sunscreen?

What's the difference between sunblock or sunscreen?

Shield vs filter: True sunblocks essentially create a shield to effectively block out the sun with zinc oxide being one of the most common preparations. They tend to be opaque. Sunscreens are chemical agents which filter out undersireable wavelengths of the sun and come in a variety of strengths and formulations. They tend to be clear. The diagram represents the spectrum of coverage. ...Read more

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Dr. Jeffrey Pollard Dr. Pollard
ENT - Head & Neck Surgery
17 years in practice
Vanderbilt University School of Medicine
14

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Is there a difference between sunblock and sunscreen?

Nope: Sunscreens work via 2 possible ways: 1) chemical blocks that breakdown the uv rays as they pass through the skin and 2) physical blocks that prevent the uv rays from getting to the skin. I recommend the physical blocks (zinc and titanium) because they have a very good safety profile and work very effectively. If you are going to be in the sun - use a minimum of spf 15 - follow product directions. ...Read more

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Dr. Emil Shakov Dr. Shakov
Aesthetic Medicine
13 years in practice
American University of the Caribbean
15

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Is there a difference between sunscreen and sunblock?

Is there a difference between sunscreen and sunblock?

Different mechanisms: Sunscreen decreases the effects from uv b but not uv a which leads to photo aging like wrinkles. A sunblock will have zinc or titanium oxide crystals to "block" the sun. ...Read more

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Dr. Jerald Ratner Dr. Ratner
Psychiatry
47 years in practice
Hahnemann Medical College
16
Dr. Holly Maes Dr. Maes
Pediatrics
32 years in practice
Medical College of Wisconsin
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What is the difference between sunscreen and sunblock?

What is the difference between sunscreen and sunblock?

Sunscreen/sunblock: The difference between is how good they are at screening out harmful radiation from the sun. Blocks are stronger and thus more effective at keeping out those harmful UV rays. Blocks are also usually more visible. For instance, the white zinc oxide life guards use on their nose is more of a block. Nothing is 100% though, so hats with wide brims and lightweight clothing works well too! ...Read more

Dr. Jason Lichten Dr. Lichten
Surgery - Plastics
19 years in practice
Jefferson Medical College of Thomas Jefferson University
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Y is it bad to put sunblock on a baby less than 6 months?

False sense: Sunscreen is not recommended before age 6 months because it is not recommended to expose your baby to direct uv light before 6 months of age. ...Read more

Dr. Grant Linnell Dr. Linnell
Radiology
20 years in practice
Michigan State University College of Osteopathic Medicine
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What kind of sunblock should I use daily? Can it be regular sunblock?

What kind of sunblock should I use daily? Can it be regular sunblock?

Yes, use sunblock: Uva and uvb protection, at least spf 30. See the american academy of dermatology website for more details. ...Read more

Dr. Marlis Gonzalez fernandez Dr. Gonzalez fernandez
Physical & Rehabilitation Medicine
9 years in practice
University of Puerto Rico School of Medicine
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What do the SPF numbers on sunblock/sunscreen mean? How do I know what the right amount of SPF is for me?

What do the SPF numbers on sunblock/sunscreen mean? How do I know what the right amount of SPF is for me?

Sunprotection factor: Spf means sun protection factor and is a measure of the amount of protection from the sun a sunscreen provides. So the higher the spf the more protection it gives from the sun and the longer you can stay out after application. It is difficult to say exactly how long you can stay out based on the spf only as it depends on sun intensity. So the higher the spf the better generally speaking. ...Read more

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