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Doctor insights on: Sunblock Spf 15 Medication

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Can I use a sunscreen with SPF 55 and layer a bb cream with SPF 15 on top?

Can I use a sunscreen with SPF 55 and layer a bb cream with SPF 15 on top?

Decreased SPF: If you layer spf, then end result is usually an average of the 2. For example spf 55 + 15 results in spf 35. ...Read more

Spf (Definition)

Could be; sun protection factor (measures effectiveness of sunscreen), specific pathogen free (for lab animals free of pathogens), or supernatant ...Read more


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If there is SPF 15 with uvb + uva in my aha glycolic acid 4% day cream, does this provide adequate sun protection or should sunscreen be used too?

More sunscreen: That is a low amount of protection. Suitable for only small amounts of sun exposure. If you are in the sun you should use at least spf 30 and go higher the lighter your complexion and longer your sun exposure. ...Read more

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19yr old gal oily skin type wid acne. Wen I put any sunscreen my temp. Rises I feel hot n skin becomes red I use SPF 15.

19yr old gal oily skin type wid acne. Wen I put any sunscreen my temp. Rises I feel hot n skin becomes red I use SPF 15.

Skin sensitivity: You may be sensitive to -- or even allergic to -- some of the chemicals in the sun screen you're using. This is not uncommon. Possible culprits may be ingredients like paba and benzophenones -- one of the most common causes of sunscreen-induced contact dermatitis. Check your labels and see what's in the stuff you're rubbing onto your skin. Zinc oxide and titanium dioxide may be less irritating. ...Read more

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Can topical medication (benzoyl peroxide, ceraVe moisturizing lotion, and physical based sunscreen) worsen/cause anxiety or any mental health issues?

Can topical medication (benzoyl peroxide, ceraVe moisturizing lotion, and physical based sunscreen) worsen/cause anxiety or any mental health issues?

No: No, topical medications should not affect mental health, other than improve it when symptoms they are treating are improving. ...Read more

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Is it safe to put on sunscreen then put on the acne medication benzaclin (clindamycin and benzoyl peroxide)?

Is it safe to put on sunscreen then put on the acne medication benzaclin (clindamycin and benzoyl peroxide)?

Sunscreen: Typically it is best to apply sunscreen after any and all topical medications. Applying medications over sunscreen can reduce the effectiveness of the sunscreen putting your skin at risk for sun damage. It is perfectly fine to apply medications and then sunscreen as this order will not disrupt the effectiveness of the topical medications. ...Read more

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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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I don't want to get darker so I bought SPF 50 sunscreen but some people told me that sunblock makes you not get darker. Is that true?

I don't want to get darker so I bought SPF 50 sunscreen but some people told me that sunblock makes you not get darker. Is that true?

Sunscreen: Blocks the sun's rays which cause burning and tanning (darkening of the skin). Most people use suncreen to avoid this damage. ...Read more

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Hoping you can tell me, is lower SPF in sunblock better for your skin then SPF 100+?

Hoping you can tell me, is lower SPF in sunblock better for your skin then SPF 100+?

SPF 30, broad spectr: An spf of 100 does not provide that much additional benefit over spf 30 sunscreen. The important thing about sunscreen is that you actually use it, reapply it, and that it is broad spectrum. ...Read more

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Supposing I'm using sunblock SPF 50, how much sunblock should be applied on the face daily for effective protection?

Supposing I'm using sunblock SPF 50, how much sunblock should be applied on the face daily for effective protection?

Once before going...: Applying sunblock each day, once before going outdoors, should be adequate if the sunblock is not washed off. If there is a lot of sweating, face-wiping, rinsing, or washing, then nobody really knows how much sunblock is remaining on the skin. In that case, one can apply again sunblock while the sun is still bright. ...Read more

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I use neutrogena ultra sheer dry touch sunblock SPF 85 everyday, is it safe/ok? Or could you recommend a brand? I have ezcema

I use neutrogena ultra sheer dry touch sunblock SPF 85 everyday, is it safe/ok? Or could you recommend a brand? I have ezcema

Neutrogenia: The sunblock covers about 98 percent of the body. The proble is, is that the long ter effects of such a high spf is unknown and especially in someone who has eczema. ...Read more

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If I put sunblock cream (spf 50 or 100) on my skin and expose my body to the sun, will I get vitamin d normally?

No: When the sun's uv b rays hit out skin, we turn inactive d to active vitamin d. So if you are wearing sunscreen that blocks those rays, then your body will not perform this process and you could be at risk for vitamin d deficiency. You can get a blood test to determine your vitamin d levels. ...Read more

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Question about neutrogena age shield face sunblock SPF 110, 3 oz, since my skin is oily and have acne. What ingredients should I avoid?

Question about neutrogena age shield face sunblock SPF 110, 3 oz, since my skin is oily and have acne. What ingredients should I avoid?

Manage your acne: Trying to find a particular cause for acne flares is usually futile. Take care of the basic problem. If topical retinoic acid and/or benzoyl peroxide hasn't cleared you in two weeks, get with your personal physician. ...Read more

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Alot of people put sunblock on when they're outside instead of putting it 15 minutes before going outside. Which way is better and does it matter?

Before: Sunblock is more effective when applied prior to exposure. Depending on skin type, it doesn't take long for the damage to be done. Some people may start to burn after just 10 or 15 minutes. Sunblock also needs to be reapplied often (every 2 hours) and after swimming even though it says, "waterproof." make sure to use a sunblock that protects against uv a and uv b. ...Read more

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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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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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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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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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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

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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

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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

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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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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

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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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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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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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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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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

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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

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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

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How can I convince my kids to wear sunscreen/sunblock? Any tips (anything would be appreciated, please!)?

How can I convince my kids to wear sunscreen/sunblock? Any tips (anything would be appreciated, please!)?

Just do it: Your children are not in control of their lives-you are. When you put them in a car seat and buckle them in it is to protect them from injury. Sunscreen is no different and can be just as life saving. I have a father-in-law with end stage melanoma. His mother didn't use any sunscreen. Make the decision now to do what's right for your children. Someday they'll understand the love behind the lotion. ...Read more

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Which is best sunblock available which protects whole day? Is it necessary to buy new sunblock every year?

Which is best sunblock available which protects whole day? Is it necessary to buy new sunblock every year?

Zinc / Titanium: 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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How much zinc is used to make sunblock?

Zinc Oxide: Zinc (physical) sunblocks come in many formats with many different concentrations of zinc. I do recommend the physical blocks (zinc and titanium) because they have a very good safety profile and work very effectively. ...Read more

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Is nivea a physical or chemical sunblock?

Is nivea a physical or chemical sunblock?

Chemical: You must be referring to a chemical sunblock, since it is a topical skin product. Nivea has multiple different products, some with sunscreen and some without. Take a look at the label to see the SPF and active ingredient of sunscreen. Best are zinc oxide and titanium dioxide. Thanks for trusting in Healthtap! ...Read more

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What is a sunblock that a baby is not allergic to?

What is a sunblock that a baby is not allergic to?

Several brands: Sunblock is important for people of all ages to avoid skin damage. Ones that contain the physical barriers zinc oxide and/or titanium dioxide do not bind to the skin and are very safe to use on babies and everyone else. ...Read more