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Sunscreen 101

UVB-Screening Sunscreen and Broad-Spectrum Sunscreen

30, 40, 50, 80 SPF... which one is better suited to protect you? Your makeup has SPF, but is it enough to protect you? What does SPF really mean? The information or depth of information given to the consumer really makes it confusing in selecting something that not only feels good, but provides sufficient protection. Therefore, let’s break it down and simplify it:

There are 3 types of radiation we are potentially exposed to: UVA, UVB and UVC, with the majority of UVC being absorbed by the ozone layer and not affecting our skin. UVA radiation penetrates the skin more deeply than UVB and has been known to play a major role in skin aging, wrinkling, and skin cancer. UVA radiation damages specific skin cells called keratinocytes, which are located in the basal layer of the epidermis, where most skin cancers occur. Tanning beds emit primarily UVA rays (up to 12 times stronger than outdoor exposure) so whether in a tanning bed or outdoors, exposure to UVA rays will damage cellular DNA. UVA can be broken down into UVA 1 and UVA 2. UVA 1 has a longer wavelength and penetrates the deepest as compared to UVA 2, which is a short wavelength with more superficial penetration. UVB has superficial penetration of the skin and is the cause for skin reddening and sunburn. Understanding what we are trying to protect ourselves from is only half the battle. How do you select a product that will provide you with adequate protection when most sunscreens have so many ingredients on their labels?

Sunscreens are usually a combination of “chemical absorbers” and “physical filters”. Most UV filters are chemicals, forming a thin, protective film on the skin to absorb the UV radiation before it penetrates into the skin. The physical sunscreens are insoluble particles that reflect UV away from the skin. There are many chemical absorbers with the majority protecting against UVB. The exceptions are Avobenzone which protects against UVA 1, dioxybenzone, ecamsule, meradimate, oxybenzone, and sulisobenzone all provide UVA 2 protection. Physical filters include zinc oxide, and titanium dioxide with zinc oxide providing protection against UVA 1 & 2 and UVB. The term “broad-spectrum” sunscreen indicates coverage for both UVA and UVB. Therefore, rather than looking at the ingredients, seeking out a “broad-spectrum” product with sufficient SPF helps to reduce confusion and frustration when seeking an appropriate sunscreen.

SPF stands for sun protection factor and indicates the amount of protection from UV rays and duration of exposure before burning. For someone wearing a SPF of 15, it would take them 15 times longer in the sun to burn as compared to no use of sunscreen. SPF 15 filters out 93% of UV rays as compared to SPF 30 filtering 97% and SPF 50 filtering 98% of harmful UV rays.

At Lasky, we recommend only broad-spectrum sunscreens from both the SkinCeuticals and Obagi product lines. Both provide sufficient coverage for daily or active outdoor activity. Haven’t tried our sunscreens? Mention reading this article and receive $5 off either one.

For more information, contact our staff at 877-847-9612

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New protocols for office visits View Update

New protocols for office visits

May 12th, 2020

In light of the COVID-19 pandemic we have instituted many changes to your normal office visit. These changes have been introduced to protect everyone’s health and safety during your visit. All of our staff have been tested for COVID-19 and are negative. They are being monitored daily as well and will be practicing safety guidelines.

  1. If you are sick, do not come to the office. Call our front desk and we will reschedule your appointment promptly once you’re healthy again.
  2. Please wear a mask to your appointment.
  3. Do not bring someone else with you to your appointment. They will not be able to enter the office and wait for you. The only exceptions are for those who require medical assistance or translation assistance. Additionally, please do not bring any pets to the office with you.
  4. The day before your appointment, as in the past, you will be called to confirm your appointment. During that call you will be asked if you have any symptoms like fever, chills, muscle aches, cough, sore throat, shortness of breath, loss of smell or taste. You will also be asked if you have been recently exposed to COVID-19 or have been traveling on a commercial airplane within the last 2 weeks.
  5. When you arrive for your appointment, please call the office from your car. A staff member will either tell you to come up to the office at that time or will ask you to wait in your car until they text you to come up. Before entering the front door of the office, you will be met by a staff member who will take your temperature with a no-touch forehead thermometer to be sure you don’t have a fever. They will again ask you if you have any symptoms of COVID-19. You will be given a mask if you don’t have one, as well as hand sanitizer since you touched the doorknob to enter the office. We will stagger appointments so that on the day of your treatment, you will not interact with any other patients.
  6. You will be taken directly to an exam room which has been cleaned and disinfected just prior to your arrival. There are also air filtration machines installed in each exam room which sterilize the air.
  7. Our medical assistants, who will be wearing N95 masks and protective eye shields, will take your history and prepare you for your visit. You will be asked to sign a new COVID-19 consent form in addition to any of the usual consent forms you may be used to.
  8. After your treatment, you will check out while in the exam room and any products you purchase will be brought to you. If you give us your credit card information the day before your appointment, we can handle the checkout without physically touching your card.
  9. Please try to make your follow up appointments during your office visit. With new scheduling changes and staggered appointments, last minute appointments may be difficult to schedule.