scouts-l Mail Archive for August of 2000: Re: Sun-Block
Mon Aug 21 2000 - 09:51:43 CDT
In a message dated 8/21/00, Bob Taylor asks on Scouts-L:
>sun-block and mosquito repellent; does it matter which goes on first?
c. August 21, yMM
Hallo Bob and Scouts-L~\
For sun blocks/sunscreens to work properly, the active ingredients
need to be absorbed into the epidermis (skin), as deep as the 25 cell
layers that make up the status cornium. Your skin will absorb sunscreens
best when the skin is cool and dry (first thing in the morning whilst
dressing). Skin will NOT absorb topically applied lotions when stressed
(hot and moist), and any sunscreens applied when hot will only percolate
off with perspiration resulting in its ineffectiveness. The best sunscreens
work from within skin cells and not from the skin surface.
Do not use sunscreens that contain paraffin making them waterproof.
Coppertone and Bull Frog products contain paraffin. Paraffin prevents
the sunscreen from absorbing deep into the epidermis, especially beyond
the first five layers of (dead) skin cells. Paraffin sunscreens then
percolate out of and off the skin with perspiration. More frequent
$un$creen reapplication is then required for day-long protection.
The best sunscreens we found for our Type 1 skin (fair skin, blue
eyes) is Sawyer "Stay-Put" and "Bonding Base" sunscreens. Check out
<http://www.SawyerProducts.com/Sun_Blocks/sun.htm>. When properly
applied on cool dry skin, it works ALL day. Only a slight tan was realized
after a week on summer camp waterfront (teaching and lifeguarding,
with frequent swims), and week-long canoe trip (intense over-water
solar radiation) in Upper Canada, both earlier this summer. When applied
on our cool, dry skin, it did work all day.
After applying a sunscreen and allowing the sunscreen to "setup" in
your skin (~2 hours), apply your insect repellent. We used Sawyer's
"Controlled Release Deet Formula" insect repellent, a 20% deet
microencapsulated lotion formulated to work with Sawyer Stay-Put
Sun Block and effective for over 20 hours. We also used a composite
insect repellent with a fly repellent, Sawyer Gold, effective for
~2 hours against biting flies. Check out
<http://www.SawyerProducts.com/Insect_Repellent/>. Don't forget
to use Permethrin on your clothing before your outdoor trip and leave
the bottle at home. One Permethrin clothing treatment is effective
for two weeks, including weekly launderings, against biting ticks,
mosquitoes, chiggers, mites, fleas, spiders and body lice. Permethrin
vanishes after application, is odorless after drying, non-greasy,
non-sticky and will not harm any of your gear.
BTW, we saw Sawyer Products Controlled Release Deet in an
advertisement in Scouter magazine. They also had a booth at the
2000 National Order of the Arrow Conference (NOAC). After reading
about and using Florida-based Sawyer's products, our experiences
rate them as superior sunscreens and insect repellents over the
national brand names found on store shelves.
Your friend in Scouting~\
West New York
I used to be an Owl, now a Beaver and Vigil, and forever and Eagle!