Do you know what is SPF mean?
Do you know much amount of sunscreen product we should apply to protect our skin? Here are answers:
What is SPF
The FDA has defined SPF as the amount of time it takes to produce minimal redness(erythema) in skin via UVB exposure. This is called the Minimal Erythemal Dose(MED), and its achieved when the skin attains the amount of UVB required to produce redness ,more commonly known as sunburn.
An SPF 2 enables the skin to be exposed to UVB twice as long as when sunscreen is not used before the MED is attained. This means that an SPF2 absorbs 50% of UV rays, allowing the other 50% to get through, so it takes twice as long for the skin to absorb the amount of UV needed to produce redness.
An SPF 8 absorbs 87.5% of the rays. Leaving 12.5% to reach the skin.
An SPF 15 absorbs 93.33%, allowing 6.67% UV to get through and
SPF 30 absorb 96.67% allowing 3.33% to pass . Now you see that even the higher SPF will not absorb 100% of UV rays. This is why the FDA no longer allows the use of the term
“Sun Block” to describe sunscreen.
SPF 30 does not offer twice the protection as an SPF 15
Based on the numbers, SPF 30 offers less than 4% more protection than an SPF15 But that is not the whole story. To achieve the extra 4% the higher SPF must reach beyond UBV rays into the UVA part of the part of the sun’s radiant spectrum. Because UVA is implicated in photoxic and photoallergic reactions, as well as diseases such as lupus, this extra 4% can be enough to keep certain complexions safe in the sun. Many marketing advertisements look like misleading consumers by SPF numbers. Many consumers are buying Sunscreens with high SPF numbers to expect they have more protection power.
*****Sunscreen are over-the counter(OTC) drugs that are regulated by the FDA.
Many company claim their natural ingredients has UV protection effect, however It can not be identified as sun screen. The only exception is if the product , not the individual ingredient receives New Drug approval from FDA
Following ingredients are recognized by FDA as sunscreen in these OTC drugs.
Safer ingredients (Physical blocker)
The mineral sunscreen ingredients Zinc oxide and titanium dioxide are not new. but they are surging in popularity and use.
Healthy ingredient combination:
Anti-inflammatory, anti-aging, vitamins ingredients ( vitamin e, green tea extract etc.)
Ingredients are found that cause for concern.
Holosalate: disrupt hormones
Methylisothiazolinone : Can cause allergic reaction
Octinexate : disrupt hormones and cause allergic reaction
Octocryene: Can cause allergic reaction
Oxybensone : can cause allergic reactions and disrupt hormone
Solar defender SPF 30 Safe, Powerful protection for your skin.
In last two month I found suspicious spots on my clients skin . They went to their doctor and found out those were skin cancers.
Summer is here, I 'd like to share some info about skin cancer.
People normally think that skin cancer is brown or black hard legions. With my long time experience been skin professinal, I see many peoples are neglecting pink or red spots which are prone to be a skin cancer or cancer.
I f you have any pink or red spot that constantly irritated and scaling, please ask your doctor to check.
I would recommend Sunblock with physical blocker ingredients( Zinc oxide, Titanium oxide) are very safe and powerful sunblock.
Be careful of too high SPF number. The numbers more than SPF 30 will be not much different as far as strength of protection from the sun is concerned. It is good idea to test sample on the skin behind of your ear or inside part of your upper arm.
Have a happy summer !!!!!!
• What you need to know about Zika Virus
ALBUQUERQUE (KRQE) – The tiny, tadpole-like larvae never saw it coming. Neither did the team of medical researchers that had just killed them.
At the University of New Mexico’s Health Sciences Center, doctors in the Division of Infectious Diseases have been trying for years to find a safe, cheap and easy way to kill Aedes aegypti, the mosquito that transmits dengue fever. They’ve known they had a way to kill Aedes larvae. What they didn’t see coming was that a little-known disease discovered 70 years ago might provide the urgency they needed to get their solution into the public eye.
The Aedes mosquito also carries the Zika virus.
The emerging virus has caused alarm during its rapid spread through South and Central American countries. Cases of Zika have been reported in the United States and the World Health Organization has deemed the outbreak a public health emergency.
The disease often manifests itself in relatively benign, flu-like symptoms. But it is particularly dangerous to pregnant women. Children of women infected by the Zika virus seem to have a higher occurrence of a condition called microcephaly, in which infants have an underdeveloped skull and often a smaller brain. Its exact link to Zika is uncertain.
News of the virus spread almost as fast as — and now faster than — Zika itself. Reports are often accompanied by pictures of masked men blowing fog into tropical backyards and alleyways. The fog is a chemical insecticide.
“The rationale being that if you use a low enough concentration, it probably doesn’t harm people,” said Dr. Ravi Durvasula, chief of the center’s infectious diseases division. “But really, it’s pesticide and it’s in the water supply and this is the water that people drink.”
Two researchers working with Durvasula — Scott Matthews, M.D. and Ivy Hurwitz, Ph.D. — have found what they believe is a safe way to kill Aedes larvae using an elegant Trojan-horse strategy.
Matthews explained that the water-borne larvae are preoccupied with eating as they begin their journey into life. The larvae are storing up energy to shift their existence to the month-long life of an adult Aedes mosquito.
“It needs to eat a lot to grow fast. So, anybody with a teenager knows that it takes a lot of food to put on body mass,” he said.
Matthews and Hurwitz have been feeding the larvae one of the young mosquitoes’ favorite foods: yeast. The tiny particles have a thick, sugary outer shell that’s nearly irresistible to the larvae. Given the choice, they have eaten their way to adulthood on nothing but yeast.
But the researchers found a way to “crack” the yeast particle and replace the nutrients inside that outer shell with common lemongrass oil. The yeast particle only breaks down once it connects with an enzyme inside the larval gut.
“When they break it down, out comes the essential oil and kills the larvae,” Matthews said.
The results have been astounding.
“Very, very compelling,” said Durvasula, “One hundred percent mortality in every case for these mosquitoes. It works.”
Unlike a chemical insecticide, which often uses a single pathway such as the nervous system to kill an insect, the lemongrass oil kills the larvae using multiple systems. The effect is a natural insecticide that is much more difficult for the larvae to resist.
It’s also much safer for humans. It is relatively inexpensive and, the team hopes, easily deployable to developing countries where diseases like dengue fever and Zika are endemic.
The team is working with the university’s tech-transfer department to find a partner — either government, corporate, or non-profit — to pay for real-world testing.
In the meantime, the researchers plan to ramp up their testing regimen. The plan is to drop the yeast particles in dirtier water that can simulate what’s found in the ponds, puddles and pools of the cities where Zika is spreading faster than governments can keep up with it.
Home Made Essential Oil Repellent Spray
4 oz. Clean Glass Spray Bottle with a fine mist setting.
1.5 fl. ounces of Distilled Water and 1.5 fl. ounces of High-proof Vodka.
15 drops Citronella Essential Oil
10 drops Lavender Essential Oil
10 drops Eucalyptus Essential Oil
5 drops Lemongrass Essential Oil
Directions: Fill the spray bottle with the choice of either 1.5 fl. ounces of distilled water and 1.5 fl. ounces of alcohol or 3 fl. ounces of distilled water. (Even though a 4 oz. bottle is suggested, leave about 1 oz. unfilled so you can shake the bottle well between uses.) Then, add the essential oils.
To Use Follow Directions Carefully: Shake the bottle before each use. Essential oils do not fully dissolve in water and alcohol and will settle. If you do not shake the bottle, you risk having concentrated droplets of essential oil irritate your skin.
Second Skin" Reduces eye bags.
This is article from Harvard Women's health Watch
There may soon be a nonsurgical alternative for alleviating those bothersome eye bags.
It's call " second skin" from siloxanes-oxgen-silicone compounds that can be modified to have various properties including elasticity and permeability. This was tested 170 subjects so far no one has reported irritation or allergic reactions.
I have researched on internet about this. There are some similar products are on the market already, but real thing( siloxanes compound product) is not approved by FDA.
Summer skin Care Tips from Esthetician
**Removing dead & dulling impurities from the skin while help maintain hydration.
** Soothe & Hydrate Sunburns,then Enhance Sun Protection
*Blend equal parts Activating Liposome Complex & Triple C&E Complex and apply in the AM
**Protect, Protect & continue to Protect
*Apply Solar Defender SPF 30 following your moisturizer and reapply throughout the day!!!
Welcome to FC2!
- Sun Screen product, What is SPF? (07/12)
- Warning signs of skin cancer (06/06)
- Lemongrass may be effective to kill Zika virus lavaes (07/30)
- Second Skin (07/25)
- Summer Skin Care Tips (08/05)
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