10 Jan Difference between Physical and Chemical Sunscreen: Which is Better?
Well, sunscreen is quite an indispensable part of everyone’s beauty routine who realizes the effects of UV exposure.
However, there are a lot of factors to consider when choosing your sunscreen or sunblock.
And when it comes down to the final decision, one thing that’s often the deciding factor is the choice between physical and chemical sunscreen.
Physical (aka mineral sunscreen) or chemical sunscreen, both have their own pros and cons.
And this leads to a difficult pick, considering the options we have today.
Choosing the right sunscreen might feel like solving all the equations in one go.
Yes, making choices can be daunting. So, which one is better for your skin?
Physical vs Chemical Sunscreen [20 Commonly Asked Questions Answered]
#1. Physical sunscreen or sunblock: This type of sunscreen usually acts as a sunblock. Or we can call it more of a sun shield. This is because, when applied, it reflects back the sun’s rays.
And for any of you wondering, is mineral sunscreen physical or chemical…
Mineral sunscreen indeed comes under the category of physical sunscreen and sunblock.
Common minerals like zinc oxide and titanium dioxide are used to reflect back the sun’s rays.
#2. Chemical sunscreen: It works on a completely different phenomenon. Unlike reflection, it follows the notion of absorption.
When applied, it absorbs into the skin. And thereafter, it absorbs the UV rays, converting them into heat. Subsequently, it releases them from the body.
Well, now you have a clear overview of both physical and chemical sunscreen. However, this isn’t going to help you much.
Inside a store, you’re staring at all those ‘yes we’re great’ sunscreens. And you have a decision to make.
Between chemical and physical, which one would you pick?
By the end of this blog, you’ll have all the information on the comparison of physical vs chemical sunscreen…
#1. What is the Difference between Physical and Chemical Sunscreen?
A major difference between mineral and chemical sunscreen is how they work.
Physical sunscreens work by providing a protective layer. When applied, the layer sits on top, reflecting the harmful UV rays.
On the contrary, chemical sunscreen does the work by absorption. Firstly, the sunscreen absorbs into the skin.
Thereafter, it offers maximum protection by absorbing UV rays followed by its conversion into heat. And finally, it releases that converted heat from the body.
Moreover, physical sunscreen is mostly recommended for sensitive skin or let’s say dry skin needing more moisturization.
Whereas, chemical sunscreen works best during any kinesthetic activity. For instance, swimming, outdoor sports, or cycling.
#2. Is Physical Sunscreen Better Than Chemical Sunscreen?
Well, the choice of sunscreens is highly subjective. For instance, it depends on your skin type. And how or when you’re exposed to the sun.
Both the sunscreens differ in functions. Hence, their application differs too.
To know which one is better, you need to ask yourself a few questions.
Speaking of which, physical sunscreen will suit you the best, if you have sensitive skin or dry skin. This is because physical sunscreen is known to give maximum moisturization.
Unlike chemical sunscreens, it’s more skin-friendly for dry skin people.
On the other hand, if you’re more into outdoor activities or your daily schedules include longer sun exposures, chemical sunscreen goes best for you.
It quickly absorbs into the skin. On the contrary, physical sunscreens take a lot of time to blend.
#3. What are the Active Ingredients in Chemical Sunscreen?
Apart from finding the right SPF, you should go through the sunscreen’s ingredients. This helps you find the best for you.
Chemical sunscreen ingredients include compounds like:
- Oxybenzone – Prevents sunburn and leathery skin
- Avobenzone – Blocks the full range of UVA rays
- Octisalate – Absorbs UVB rays and has a water-resistant nature
- Octocrylene – Filters the harmful UVB and UVA rays
- Homosalate – Prevents and protects from direct skin exposure to the sun
- Octinoxate – Protects skin texture and elasticity
So, what’s the best part about these ingredients?
Well, they combine and blend with ease in your skin without leaving behind any unwanted white residue.
#4. What are the Active Ingredients in Physical Sunscreen?
Physical sunscreen, aka mineral sunscreen, forms a protective layer on your skin.
So, how is physical sunscreen formulated?
Mineral sunscreens mainly contain 2 active ingredients:
- Titanium Dioxide: Containing a bright-white pigment, it serves as an effective filter. And this is because it becomes transparent in sunlight. Henceforth, acting as a UV rays absorber.
- Zinc Oxide: This compound works by deflecting harmful rays. And this reduces the chance of damage caused by UV rays.
Conventionally, it’s called the safest ingredient for sunscreen. And this is because it leaves no skin adversities post-application. Moreover, it’s oil-free and doesn’t clog pores. Also, zinc oxide has antimicrobial properties, signaling how healthy it is for the skin.
Both these ingredients are approved by the FDA. This determines their effectiveness and certifies them as safe.
#5. Is Physical (Mineral) Or Chemical Sunscreen Better?
Well, it has to be a chemical sunscreen. And this is because it gets easily absorbed.
Above all, they contain alpha-hydroxy acids and beta-hydroxy acids. These are helpful acne-treating compounds.
It’s always better to look for niacinamide and VitB3 in a sunscreen’s composition. This is because they prevent discoloration while shoving off blemishes.
#6. Which is More Suitable for Sensitive Skin: Chemical Sunscreen or Physical Sunscreen?
Physical sunscreen is often preferred for sensitive skin due to its simple composition. Also, mineral sunscreens act as a layer over your skin, acting like a protective layer.
Moreover, physical sunscreens and sunblocks are non-irritating in nature. Because it’s usually thicker in texture, you also get ample moisturization.
So, physical sunscreen it is.
On a side note, as even a single ingredient can flare up sensitive skin, it’s best to go for a simple formula.
#7. What are the Benefits of Zinc Oxide Over Chemical Agents in Sunscreen?
As mentioned, dermatologists call it the safest ingredient in sunscreen. And this is surely due to various reasons.
- Zinc is safe – Not only safe but contains the goodness of antibacterial and anti-inflammatory properties.
- Zinc keeps skin cool – Unlike chemical sunscreens, it doesn’t release heat. Rather, it keeps the skin cool by deflecting the sun’s rays. Henceforth, balancing skin’s temperature.
- Zinc promotes collagen production – Prolonged exposure to UV rays is scientifically associated with premature aging. Now, zinc aids in boosting collagen production. It activates the protein collagenase. Thus, enabling the protein to escalate collagen production.
- Zinc treats acne – Zinc is imbued with various medicinal compounds. It has anti-inflammatory and antibacterial properties to fight infections. Subsequently, it helps reduce acne by regulating sebaceous gland activity.
And chemical sunscreens have none of the above attributes. However, in its favor, the formula is much more customizable to add multi-functional skincare ingredients.
#8. Is Chemical or Physical Sunscreen Better in Terms of Ingredients?
This is a really subjective question.
The active ingredients in both types of sunscreens have clinical data backing them up.
So, the only thing you need to check for is the total composition and what else is in there in addition to the UV blockers. And this might vary from brand to brand.
In general, there are fewer ingredients in a physical sunscreen as compared to a chemical one.
The choice, thus, depends on your skin condition and what ingredients suit you.
Do you have sensitive skin or have any skin condition? Consider a simple physical sunscreen.
If you want a better concoction with fancy skincare ingredients in a formula that absorbs quicker, pick chemical sunscreen.
The best measure of the composition of sunscreen is always whichever will suit you best.
Skincare is like that. It’s never universal, and most experts will advise you to go for a product that your skin loves.
#9. Are Physical Sunscreens Safer?
As compared to chemical sunscreens, a physical sunscreen:
- is less irritating, and
- much better for sensitive skin.
Moreover, in a recent study published in the Journal of the American Medical Association, the data collected by FDA shows that 6 of the most common chemical actives absorbed in the bloodstream just after a single application are linked to hormone damage as well.
However, no negative impacts or absorption of physical sunscreen have been found.
#10. Can I Use Both Physical and Chemical Sunscreen Together?
Both sunscreens have their own positive effects.
However, numerous people try to mix chemical and physical sunscreen together to avail of maximum benefits.
Mixing two different sunscreens makes it less effective. That is to say, the sunscreens become ineffective just within hours of applying it.
Adding to it, in a study, it has been found out that mixing chemical sunscreens limits its effectiveness against UVA.
Therefore, using physical and chemical sunscreen together could do more harm than good.
#11. Physical vs Chemical Sunscreen – Which One Lasts Longer on Sunny Days?
Not only does physical sunscreens last longer on the shelf, but it also lasts longer than chemical sunscreen when exposed to UVA lights.
Adding to it, physical sunscreen starts to work as soon as you apply it.
However, if you are working out or doing any physical exercise, which makes you sweat a lot, chemical sunscreen would be a better option.
Hence, whether to choose physical sunscreen or chemical sunscreen depends on the nature of the usage.
#12. Does a Physical Sunscreen Have Anti-Aging Benefits?
Sunscreens, whether physical or chemical, carry properties for sun protection. And thus, both of these have anti-aging benefits.
So, yes, a physical sunscreen has anti-aging properties because it protects against UVA damage, which is a determining factor for skin aging.
Physical or mineral sunscreen contains zinc oxide and titanium dioxide, both of which are declared safe by the FDA. It reflects back UVA rays instead of absorbing them.
When choosing sunscreen to minimize wrinkles and prevent aging of the skin, it’s better to look for above 30 SPF and non-toxic ingredients.
#13. What are the Pros and Cons of Physical Sunscreens?
Often referred to as physical blockers, physical sunscreen, with the help of its active mineral ingredients, forms a shield on the skin and scatters the damaging UV rays.
Pros:
- Protects against both UVA and UVB rays.
- Starts to work as soon as it is applied.
- Fewer chances of stinging and irritation on the skin.
- Appropriate for those with heat-activated skin.
- Ideal for blemish-prone skin.
- Lasts longer than chemical sunscreens.
Cons:
- Frequent re-application is required when outdoors.
- Not suitable for those who sweat a lot.
- May not be compatible with darker skin tone as it may leave a white cast.
#14. What are the Pros and Cons of Chemical Sunscreens?
Often referred to as organic absorbers, chemical sunscreen has carbon-based compounds and works by absorbing UV rays and converting them into heat.
Pros:
- Spreads more easily
- Much better for everyday use
- Great for those who sweat more or perform regular physical activities
Cons:
- Increased chances of brown spots because of chemical reaction
- Takes 10-15 minutes to be fully effective after application
- May cause irritation, especially to those with dry skin
- Not suitable for those with sensitive skin
- Requires more frequent application because of its thinner consistency.
#15. Is Physical Sunscreen Waterproof?
No, physical sunscreen is not waterproof.
It can rinse off easily. Adding to it, because of occlusive film, it can increase perspiration because of physical activity and can rub off more quickly.
Nevertheless, when it comes to being waterproof, go for chemical sunscreen.
Whether doing outdoor exercise or swimming, chemical sunscreen is better.
#16. Is Physical Sunscreen Drying?
Yes, physical sunscreen could dry out your skin.
Physical sunscreen contains zinc oxide which could be the reason behind dry skin. Zinc oxide is an astringent that helps remove the excess oil from the skin.
Hence, if you have dry skin, try to check the zinc oxide concentration in the sunscreen. Or simply moisturize before you apply sunscreen.
Moreover, you can also go for a chemical sunscreen if it checks out other boxes on your list.
#17. Are Chemical Sunscreens Bad for Skin?
Chemical sunscreens use certain chemicals to protect your skin from UV rays.
Some of the chemicals used in this type of sunscreen are controversial and could be detrimental to your skin.
Moreover, a chemical sunscreen uses more chemicals for more coverage, including preservatives, dyes, and fragrances. These can cause irritation and redness on the skin.
Not to forget, a chemical sunscreen gets absorbed into your skin.
Hence, although chemical sunscreens are widely available, physical sunscreen is best when it comes to avoiding skin damage and irritation.
#18. Is Chemical Sunscreen Harmful in the Long Run?
Harmful chemical sunscreens are already banned from the market. Studies have already shown that not all sunscreens are bad for the skin.
Having said that, some ingredients in chemical sunscreens are questionable and said to degrade on sun exposure.
So, if you’re after safety, go for a physical formula.
Also, long-term use of sunscreen might be detrimental for your skin if your skin doesn’t like the ingredients.
#19. Does Chemical Sunscreen Cause Cancer?
This association of chemical sunscreens with cancer is absolutely false.
A chemical sunscreen contains chemicals like oxybenzone, which has grabbed attention because it may act as a hormone disruptor. Thus, chemical sunscreens have been a part of the heated debate.
However, it’s not the chemical sunscreens, but the high exposure to sunlight that causes cancer.
So, it’s more important to choose a sunscreen that you will like using every day. This is a surefire way to avoid cancer.
#20. Should I Stop Using Chemical Sunscreen ASAP?
No! If your sunscreen suits you and contains non-allergic, skin-friendly ingredients, continue using it.
You slather your sunscreen each day, so it’s important that you also like its feel on your skin.
But in case your present sunscreen doesn’t cut it for you…
You can swap chemical sunscreen with physical sunscreen if you have sensitive skin or are simply concerned about skin reactions.
If you’re into physical activities and sweat a lot, look through the range of chemical sunscreens.
Now that we’ve answered all the questions, here are some general tips.
How to Select Your Sunscreen?
To protect your skin from physical damage like sunburn, blisters, redness of the skin, wrinkles, applying sunscreen becomes essential.
Here are certain things to keep in mind while buying one:
Choose This:
Make sure your sunscreen is broad-spectrum, that is it offers protection from both UVA and UVB rays.
Adding to it, also make sure that your sunscreen formula has vitamin A in it.
Not to forget, decide what SPF you want to choose.
It is better to go for SPF that’s at least above 30 because it blocks 90% of UVB rays.
Also, pay attention to the UVA protection rating. Choose PA+++ or PA++++.
Avoid These:
Talking about what chemicals in sunscreen are harmful, there are 6 questionable chemicals in the sunscreen that you must avoid.
- Octocrylene
- Octinoxate
- Octisalate
- Homosalate
- Oxybenzone
- Avobenzone
Well, this was about selecting sunscreen. However, there’s a new trend going on where people are DIYing it…
Are Homemade Sunscreens Safe?
People share a love-hate relationship with sunscreen.
While many people have trust issues with a chemical sunscreen regarding the harmful effects of chemicals used in it, homemade sunscreen also doesn’t have everything to protect your skin from getting damaged.
Everything natural is not safe.
Most of the DIY sunscreen recipes lack the SPF value required to protect your skin from UVA & UVB rays.
Plus, you certainly do not have the right tools to measure the SPF value.
So, there’s no way to depend on such a sunscreen concoction when you’re out and about.
And considering the fact that 3,860 deaths happen because of skin cancer and melanoma every year in the US, using sunscreen without SPF is not worth the risk.
Final Takeaway
While chemical sunscreens are said to have long-term adverse effects on the skin, nothing is proven yet.
It’s better to pay more attention to the broad-spectrum sunscreen with SPF 30 and a good UVA rating.
Adding to it, if you have any health concerns, underlying skin issues, or allergies, it’s also recommended to choose the sunscreen accordingly.
Also, you do not have to cut all of your sun time. Enjoy your part of Vit-D. But like every good thing in life, don’t overdo it.
Only lie down under the sun, only for a few minutes, when you’re shielded with the right sunscreen on your skin. And don’t forget to carry a wide-brimmed hat and sunglasses.
I hope this has helped you in making up your mind over the debate of physical vs chemical sunscreen.
If still undecided, just remember that you can trial and error and see what works for you.
Just pick up a formula that is made for your skin type and go from there.
Have any more questions? Drop them down below and don’t forget to suggest some other topics you would like to know more about.
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