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The Willner Window Product Reference Catalog, Summer 2014
since 1911
• Willner Chemists •
the nutritional supplement professionals
Stevia: New Flavors Now Available
Extracts of leaves from Stevia rebaudiana have been used for many years in traditional treatment of diabetes in South America. Various compounds in stevia has been
concentrated, and used as natural sweeteners. These compounds possess up to 250 times the sweetness intensity of sucrose, and they are noncaloric and noncariogenic.
Stevioside, a natural plant glycoside isolated from the plant Stevia rebaudiana, has been commercialized as a noncaloric sweetener in Japan for more than 20 years.
Some studies have shown that stevia may be beneficial to those with hypertension, and those with type-2 diabetes. Dosage: Add 2-8 drops, as needed. Each ml is equiv-
alent to 300 mg of Stevia. Willner Chemists has offered stevia as a liquid herbal concentrate, providing Stevia Leaf Extract, standardized to 90% Steviosides, in 1, 2 and 4
oz sizes:
Phyto-Tech™ Stevia Extract 90
1 fl oz, prod code: 56943. ~ 4 fl oz, prod code: 56942. 2 fl oz, prod code: 56940.
~~~~~~~~~~~~~~~~~~~
Now, Willner Chemists is pleased to offer six new stevia leaf extracts, in flavored form:
Phyto-Tech™ Stevia Extract - Chocolate, 2 oz, Alcohol Free (#60140)
Phyto-Tech™ Stevia Extract - Cinnamon, 2 oz, Alcohol Free (#60139)
Phyto-Tech™ Stevia Extract - Lemon, 2 oz, Alcohol Free (#60141)
Phyto-Tech™ Stevia Extract - Orange, 2 oz, Alcohol Free (#60144)
Phyto-Tech™ Stevia Extract - Peppermint, 2 oz, Alcohol Free (#60143)
Phyto-Tech™ Stevia Extract - Vanilla, 2 oz, Alcohol Free (#60142)
These new Stevia liquids are 100% Gluten Free, and contain only organic stevia leaf extract, veg-
etable glycerin, purified water and natural flavors/essential oils. .
Suggested Use: As a dietary supplement, add 5-8 drops to a beverage or food. Shake well before
using.
~~~~~~~~~~~~~
To listen to an interview on stevia and other therapeutic herbal supplements, go to www.willner.com
and look up the May 22, 2011
Willner Window Radio Program
overseeing and dispensing of the
most potent and powerful prescrip-
tion drugs, cannot be trusted to dis-
pense certain brands of professional
vitamin products.
The truth of the matter is that those
brands that can be obtained only
from the doctor are restricted in this
manner merely to protect the doc-
tor’s financial interest. The compa-
ny’s sales representative goes to the
doctor and says, “Hey, Doc, you
should carry my line because the
patient will not be able to buy it
anyplace except from you.”
This practice, by the way, is not
limited to doctors. The same
approach is used by many health
food store product lines. Certain
companies refuse to sell their prod-
ucts to mass-market stores or phar-
macies, and the reason is the same.
The sales representative goes into
the health food store and says to the
proprietor: “Gee, times are tough,
aren’t they? People are going to the
drugstore down the block instead of
coming to you to buy their vitamins.
Well, they can’t get our line over
there. We sell only to health food
stores.”
But let’s get back to professional
lines and doctors. If the doctor pres-
sures you into buying products from
expiration dates.
First, there is not yet any legal
requirement that supplements bear
expiration dates. This is expected to
change and may very soon. But the
problem is in how one determines
what the appropriate expiration date
should be on a given product. This
should be a function of the stability,
or shelf life, of the product. At the
time of manufacture, the supple-
ments should contain at least the full
label claim. And at the end of the
product’s designated shelf life, none
of the nutrients should be present in
amounts less than 95 percent of the
label claim.
How does a reputable supplement
manufacturer design a product that
will maintain a potency of not less
than 95 percent of label claim over a
period of two or three years when
stored on the shelf of a health food
store? And what will be the conse-
quences if it is determined that after
two of the three years of designated
shelf life, one of the vitamins has
dropped to 90 percent of label
claim? Does the company recall the
product?
If the company takes this seriously,
assigning a meaningful expiration
date to a product is not something to
be taken lightly. What can be done
to assure that the product will be
stable over that period of time? Care
can be taken to select and combine
ingredients that will not interact
with each other. Sometimes stabi-
lized versions of certain ingredients
can be utilized. Overages can be
used. If vitamin C, for example, is
known to lose about 5 percent of its
potency each year and you want a
three-year expiration date, you
would start off with 115 percent of
label claim. This way, at the end of
three years, the product will contain
more than 95 percent of claim. Each
vitamin will require a different
overage, based on its stability char-
acteristics. Precautions can be taken
during manufacture to ensure mini-
mal loss of potency due to moisture,
heat, oxidation, etc. The choice of
packaging materials—glass versus
plastic—can have a significant
effect on stability as well. Vitamins
packed in cellophane packets in a
cardboard box will not have as long
a shelf life as those packaged in
glass bottles.
All of these formulating tech-
niques and manufacturing precau-
tions, however, are only the first
step in the process. The finished
product has to be tested.
The most accurate test would be to
take a few cases of the final, pack-
aged product, put them in a storage
room maintained at standard condi-
tions of temperature and humidity,
and run assays on each ingredient
every six months for two or three
years. If at the end of the test period,
all of the assays were 95 percent of
. . . continued on page 92
his office, at full price, especially if
there are no alternatives, there may
be reason for concern. If, on the
other hand, he offers products as an
accommodation and is open about
alternative sources, there may not
be a problem. Ask the doctor if you
can buy the same product else-
where. Perhaps you are on a limited
budget. Can he recommend some
other brand so that you can save a
little money?
There is nothing wrong with many
of the professional brands. They are
quality products and, as we said
above, may be specifically formu-
lated for various therapeutic proto-
cols that should indeed be used
under the guidance of a health pro-
fessional. We will be mentioning
some of these products in Chapters
6 and 7.
Expiration Dates and
Stability
Some consumers have been told
not to buy a product that does not
have an expiration date on the label.
Yes, certain vitamins deteriorate
over time and if the bottle has been
sitting on the store shelf for a year
or so, you might not be getting a
product that’s up to full potency.
But, I’m sorry to tell you, the fact
that the bottle has an expiration date
on it does not necessarily mean it is
any more likely to be up to potency
than some similar products without
. . . continued from page 83
The Best Supplements For Your Health:
Chapter 2: How to Choose The Right
Supplement
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