Cary Dermatology Blog
We often get questions about Viatmin D and our recommendation for safe sun exposure. Unfortunately, there is no safe sun exposure. There are two main ways to get Vitamin D, one from sunlight and one from food or supplements.
Sun exposure allows UVB rays to convert cholesterol to an inactive form of Vitamin D. Once the vitamin passes through the liver and kidneys it becomes active. Because of the risk of skin cancer from sunlight exposure, no recommendations can be made about the amount of sun exposure needed to reach vitamin D requirements.
Foods that contain Vitamin D include fatty fish, beef liver, egg yolks. Foods such as milk, orange juice and cereal can be fortified with Vitamin D. Again, the amount of each food to consume to obtain adequated Vitamin D levels is hard to determine and therefore dermatologists recommend getting Vitamin D in the form of Vitamin pills.
How much Vitamin D3 to take depends on what your current blood level is and your medical history. The Vitamin D council recommends 5,000 IU of Vitamin D3 once daily. If your levels are low, your medical provider may increase the daily dosage.
In summary, practice safe sun by wearing sun protective clothing and using sunscreen daily, try to consume 5000IU of Vitamin D daily, and see your primary care physician for bloodwork to determine if you have adequate levels of Vitamin D in your blood.
Skinceuticals C E Ferulic acid serum is one of the top sellers at Cary Dermatology. The main reason for this is that it is a patented triple antioxidant serum that delivers 8x the skin's natural protection against UVA/UVB rays. This serum helps to neutralize free radicals caused by ultraviolet radiation, infrared radiation and ozone pollution which can lead to visible signs of aging skin.
Dr Sheldon Pinnell, then chairman of the Division of Dermatology at Duke Universit, was doing research about collagen in 1997 when he discovered how important Vitamin C is for the skin. Taking Vitamin C by mouth did not lead to high enough levels of Vitamin C in the skin to protect against free radical damage. After much study, it has been determined that 15% to 20% L-ascorbic acid is the optimum concentration that can be absorbed into the skin. Higher levels did not improve the serum. The pH of the serum is also very important for absorption and Skinceuticals Vitamin C is at the correct pH for maximum absorption.
All of Skinceuticals products are backed by science. They are tested in people, not just in a dish in a lab. They use the highest quality medical grade ingredients and have proven efficacy.
Skinceuticals products are sold through Physician practices and Medispas. They are found on the internet mostly in counterfeit form. In fact one study of internet acquired Skinceuticals products showed that 90% of them were knock-offs.
The Doctors and PAs at Cary Dermatology recommend CE Ferulic or Phloretin CE serum for patients who are out in the sun while running, golfing, playing tennis and pickleball. The serum is applied first thing in the morning and followed by a sunscreen. While exercising and sweating will cause sunscreen to run, the Skinceuticals serum has already absorbed into the skin where it provides a reservoir of electrons to quench the free radicals that are trying to damage skin.
If you want to slow the aging process while fully participating in outdoor activities, stop by Cary Dermatology to purchase topical Vitamin C Serum in the form of CE Ferulic acid or Phloretin CF. While there you can learn more about chemical peels and cosmetically elegant sunscreens and start improving your overall skin health today.
Dandruff is the common name for a condition known as seborrheic dermatitis. It is characterized by scaling, redness, itchiness and often white, greasy flakes in the hair and on clothing. It can also involve the eyebrows, behind and in the ears, the nasolabial folds and the beard area. In severe cases the armpits, central chest and groin can be involved as well.
While some believe that when the scalp is flaky and scaly that they should shampoo less, more frequent shampooing with medicated shampoos is often what is needed to calm the scalp and decrease flaking. Shampoos that contain zinc, selenium sulfide, ketoconazole, salicylic acid and tar should be massaged into the scalp and left on for 5 minutes or longer. The medication is for the scalp. After rinsing the shampoo out, it is okay to use another shampoo for the hair if you would like, and conditioner is fine.
Seborrheic dermatitis is not cured, it is controlled. Daily washing of scalp, face and hair bearing areas with medicated shampoos and soaps (ZNP bar is great for the face), can keep the flaking under control. If over the counter products are not enough, several prescription products including shampoos and leave on creams can be prescribed by your dermatologist.
JUVÉDERM VOLBELLA® XC
The newest product from Juvederm enhances lip volume and decreases the appearance of lines around the mouth. Volbella produces a softer look than other fillers and contains a small amount of lidocaine so it is more comfortable.
The fine lines around the lips are a common sign of aging. Come see if a short procedure with little to no down time can give you the soft youthful lips that you desire.
SPF means Sun Protection Factor. It is the number on your sunscreen that tells how well the sunscreen protects you from UVB radiation.
What coverage does SPF offer? Is it helpful to get a really high number SPF?
No sunscreen offers 100% protection. In the lab, SPF 100 blocks 99% of the UVB rays. SPF 50 blocks 98% of UVB rays and SPF 30 blocks 96.7% of the UVB rays. So increasing the number only gets slightly more protection, if applied as directed.
How is SPF calculated?
SPF is calculated by comparing the time needed for a person to burn unprotected in the sun, with how long it takes for that same person to burn while wearing the sunscreen. If you normally burn after 10 minutes in the sun without sunscreen on, then with SPF 30 you should be able to stay in the sun for 300 minutes.
How much sunscreen is enough?
Wearing enough sunscreen is important. The American Academy of Dermatology recommends one ounce (a shot glass full) of sunscreen to the body, with repplication every 120 minutes if swimming, or getting wet, or sweaty. If you apply half the amount of a given SPF sunscreen, you get the protection of only the square root of the SPF. If you are using an SPF 70 and you apply 1/2 ounce, it will give you an SPF of 8.4!
Other facts -
SPF in different products is not additive. If you have make up with SPF 15 and sunscreen with SPF 20, your level of protection is only 20 times unprotected. They do not add to SPF 35.
Sunscreen is important on cloudy days since UVB and UVA rays penetrate clouds.
SPF does not tell anything about how a sunscreen absorbs UVA rays. These rays of the sun penetrate deeper into the skin and are associated with skin cancer formation. By blocking the UVB and preventing burning, some people stay outside longer and get more UVA exposure, thus fueling the myth that sunscreen causes skin cancer. It is in fact the UVA rays that are causing the problem.
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