How does Sun Protection Factor (SPF) work?
We all know how important it is to wear clothes and accessories with a Sun Protection Factor (SPF) before summer vacation, but we are not ashamed to admit that we are clueless about what SPF actually does and how specifically it helps. So, we did some research and will share with you everything we learned about SPF in today’s blog post.
Before we get into the details, I want to explain a little more about the difference between UVB and UVA. Both types of radiation damage the skin in their own way. The easiest way to remember this is: UVB = Burning. It affects the surface of the skin, causing the burning sensation that comes with overexposure to the sun. UVA = Aging, which generally means that these rays penetrate deeper into the skin and reach the underlying layers, causing skin aging, such as the breakdown of collagen and elastin. UVA radiation is constant and requires protection year-round because it can penetrate clouds, glass, and water. Therefore, many skin experts recommend using sunscreen every day, even on cloudy, overcast days, to ensure that the skin is adequately protected.
What is Sun Protection Factor SPF?
In simple terms, SPF is a product that blocks the sun’s rays from damaging or burning your skin. Generally speaking, the higher the factor, the more effective it is at blocking all UV radiation. Noting down the SPF number will help you understand how long you can safely stay in direct sunlight before your skin starts to burn.
To better understand how this factor protects your skin, think about how long it takes for your skin to turn pink when exposed to direct sunlight. If your skin turns pink quickly, choosing the highest factor will protect you from burning your skin. If you use SPF 30, you can usually get about 5 hours of sun protection. It is calculated by multiplying the SPF value by the time it would take you to get a sunburn without protection.
How to determine how long SPF will work for you:
Consider your skin type and risk of sunburn
Apply correctly and generously, about one tablespoon per limb, more for larger areas
Make a note of when you apply SPF so you are prepared for reapplication
Reapply if standing in water or sweating
Avoid direct sunlight during the hottest part of the day
If you are vigilant when in the sun, you will find that your skin is protected and shows no signs of burning.
When protecting your face with SPF, it is recommended to use products specifically formulated for the face to avoid issues with clogged pores, which sometimes lead to acne. Make sure to cleanse your skin thoroughly and follow an intensive, aggressive skin care routine to keep your skin healthy, radiant, and spot-free.
How is the SPF value of a sunscreen product determined?
SPF is a measure of the effects of UV radiation and how long it takes for your skin to suffer sun damage. First introduced in 1974, while the results cannot be considered water-resistant, it allows SPF users to track their skin’s exposure to the sun, with UVB being the main radiation that protects the skin from sunburn.
UVA rays are a little harder to avoid because the effects of these rays are invisible, and you can’t see the effects of sun exposure very quickly. Therefore, broad-spectrum sunscreens with SPF were developed to protect the skin from both UVB and UVA radiation. You can also check the ingredient list on the packaging to see if the formula contains substances like zinc oxide or titanium dioxide, as this will help you better protect your skin.
For long-term benefits, it is recommended to follow a safe sun protection regimen that includes gradual exposure to the sun, generous application of sunscreen with SPF on the skin, frequent reapplication, and adequate hydration.
When should I reapply SPF sunscreen?
The effectiveness of SPF decreases when exposed to direct sunlight. That’s why reapplying sunscreen is an important step in your skin care routine.
If you don’t want to spend too much time in the sun while commuting, adding SPF to your morning skincare routine will provide you with enough protection during your commute.
If you anticipate being outdoors for a long time, reapply SPF after 2 hours to ensure optimal sun protection. Many skin care products, especially moisturizers, have SPF in them, and using these products is a good start to sun protection. However, there is a common skin myth that says you will get more SPF if you use several different SPF products. Unfortunately, this is not true, and it is the most important factor over anything else you may apply to your skin. For example, if you apply SPF 30 every day before your moisturizer is formulated with a factor of 15, the 30 will provide skin protection.
What is the best sunscreen with an SPF value?
Any sunscreen with an SPF value is better than none! The formulations and ingredients of everyday SPF products have changed a lot since the 1970s, so I am sure there is a product that is right for you. From built-in SPF to moisturizers, mineral solutions, sprays, and lightweight day creams, no matter your skin type, you can find a product that will protect your skin from UV rays and damage without causing other skin problems such as acne.
DQH Knowledge drop: In your 20s, your skin cell turnover decreases. (Cell turnover is a key component in keeping your skin youthful.) You know what else slows down? Your collagen production. Starting in your 20s, collagen decreases by about 1 percent per year. Should you want to prevent fine lines and wrinkles, start by eliminating behaviors that contribute to premature aging. “If it’s bad for you, it’s bad for your skin,” says dermatologist Michel Somenek.
“Cigarette smoking reduces blood flow to the skin and causes premature wrinkling and a dull skin texture. Making the repeated pursed motion to inhale can also cause smoker’s lines. Alcohol and recreational drugs are toxins for the skin that damage its cellular structure and DNA,” Somenek tells us. “The faster you eliminate vices while you are young, the better chance your skin and body have to recuperate.” Also, adopting an anti-aging routine in your 20s is key. After all, the best offense is a good defense. We spoke to Somenek and experts Joshua Ross and Audrey Kunin to find out more.
Keep reading for the best anti-aging products for your 20s, according to skincare professionals.
Sunscreen
“We all know that the sun is the number one cause of skin aging and starting the prevention in your 20s is very important,” Ross says. “The majority of your sun damage won’t start to appear until you’re in your 30s, so don’t wait until you see it surface or you’ll be behind the curve. Stay ahead of it with a good-quality zinc-based sunscreen worn daily.”
Farmacy Green Defense Daily Mineral Sunscreen
An invisible sunscreen with SPF 30, plus botanical extracts meant to protect skin with tons of antioxidants. Bonus: It’s clean and fine to use under makeup.
Bareminerals Complexion Rescue™ Tinted Moisturizer Broad Spectrum SPF 30
Although we recommend you use your SPF and moisturizer separately, we also understand moments when you don’t have time or energy for that extra step. For those times, this bareMinerals moisturizer is a great thing to have on hand.
Vitamin C Serum
“A great introduction to anti-aging is to start with a vitamin C serum in your morning skincare routine,” Ross says. “It’s a powerful antioxidant that will neutralize free radicals and brighten the skin.” He adds that it’s a great way to counteract the effects of the sun’s harmful rays, which, as previously mentioned, are among the biggest causes of premature aging.
Drunk Elephant C-Firma™ Vitamin C Day Serum
The Drunk Elephant C-Firma is a lightweight serum that promises to give skin a glow by combining the brightening powers of vitamin C with ferulic acid, l-ascorbic acid, and vitamin E. The included sodium hyaluronate is meant to replace hydration loss, so you shouldn’t have to deal with any irritation.
Sunday Riley C.E.O. Rapid Flash Brightening Serum
This potent serum is jam-packed with vitamin C (15 percent, to be exact), which means it’s a potential superstar at both brightening skin and dousing it in antioxidants.
Peptides
Using peptides on your skin has many benefits, says Somenek. “The skin barrier is what defends the body against pollution, UV rays, bacteria, and toxins. It can be damaged by several everyday factors. Using topical peptides aids in building a stronger barrier,” he says. “Peptides comprise elastic fibers, which are a type of protein. These fibers help to make skin appear taut and firm. Peptides can also help repair damaged skin, relieve inflammation, and even out skin tone. Some peptides can kill acne-causing bacteria that is common in 20-somethings.”
Kunin agrees, saying, “Peptides are an excellent entry point for supporting collagen.” She recommends looking for face and eye treatments that contain these collagen-boosting powerhouses.
Charlotte Tilbury Magic Eye Rescue Cream
This Charlotte Tilbury super-emollient eye cream has a base of coconut oil and shea butter (read: it’s incredibly hydrating). Botanicals plus peptides are meant to help reduce dark circles and boost collagen, respectively.
This creamy moisturizer serves up potent collagen-boosting peptides and pycnogenol, and antioxidant-rich vitamin C. “Instead of sitting on top of the skin, peptides penetrate the outer layer so they go deep. The ‘signals’ they send tell the cells to produce elastin and collagen, which are needed for youthful-looking skin,” explains Somenek.
At-Home Peel Pads
Remember that skin cell turnover fiasco we talked about earlier? One way to help support it is by exfoliating. “Exfoliation is important to help keep skin fresh and luminous,” Kunin says. She recommends using at-home peel pads as an easy and effective way to exfoliate.
“The goal in your 20s is to fight the slowing pace of cell turnover. It is wise to use products that gently exfoliate, yet still remove oil and other impurities. Products that have Alpha Hydroxy Acids (AHA) or Beta Hydroxy Acids (BHA) are a good choice.”
According to Somenek, you should only exfoliate two to three times a week. “People of all ages are guilty of over-exfoliating and that can be too much of a good thing,” he says.
Dermadoctor Kakadu C Intensive Vitamin C Peel Pad
A few swipes of this Derma Doctor powerful peel pad promise to leave your skin glowing and smooth, thanks to the seven (yes, seven) types of chemical exfoliants, including AHA and BHA. It also contains vitamin C via Kakadu plum extract for added brightening and antioxidant protection.
KEY INGREDIENTS Kakadu plum extract is sourced from the Kakadu plum, a fruit grown in northern Australia. It contains vitamin C, which restores the skin’s natural barrier, increases collagen production, and soothes irritation.
Dr. Dennis Gross Skincare Alpha Beta® Universal Daily Peel Pads
These are the gold standard of peel pads, with a cult following and over 900 five-star reviews on Sephora. They’re easy to use and contain a blend of anti-aging exfoliating acids.
Emollient Night Cream
“In your 20s, you need to start upping the hydration in your skincare routine. You may have been cautious of over-moisturizing because of acne in your teens, but as you enter your 20s, your skin transitions and becomes drier,” Ross says. “I recommend an emollient night cream added into your evening skincare regimen.”
“Twenty-somethings need to make sure that they are not using creams that will clog their pores and cause excess oil production,” says Somenek. Opt for non-comedogenic products.
Cerave Skin Renewing Night Cream
One great choice is the CeraVe Skin Renewing Night Cream, which is a non-comedogenic night cream that leaves skin soft and glowy. It combines the moisturizing powers of ceramides and hyaluronic acid.
RoC Retinol Correxion Max Hydration Creme
“The best night cream ingredients contain retinol, benzoyl peroxide, and/or salicylic acid or hyaluronic acid. The goal is to moisturize, yet remove excess oil,” says Somenek. This Roc Retinol Correxion cream fits the bill as it contains both hyaluronic acid and retinol so it promises to moisturize while also being non-comedogenic.