Re: To Nan- Natural vs. Synthetic

[Guest guest]

You wrote:

Before you make a purchase of synthetic Arbutin, you may want to check out

the Shiseido's patents on this ingredient.

Dear Maurice, thank you for the advice. I am aware of the patent that

Shiseido has for their arbutin. However, I am not sure exactly what their

patent

covers. I have tried searching for more specific information about their

arbutin patent but I cannot seem to find any specific information. Also, I am

aware

that other major and reputable companies such as Skinceuticals(which is owned

by a prestigious dermatologist) has a product called Phyto Corrective Gel

which contains 5% arbutin. Therefore, I would think that the Shiseido patent

may

not cover all arbutin products, or companies such as Skinceuticals would be

in trouble.

-Do you know where I can go to find more information about Shiseido

patent on arbutin?-

[Guest guest]

You wrote:

Before you make a purchase of synthetic Arbutin, you may want to check out

the Shiseido's patents on this ingredient.

Dear Maurice, thank you for the advice. I am aware of the patent that

Shiseido has for their arbutin. However, I am not sure exactly what their

patent

covers. I have tried searching for more specific information about their

arbutin patent but I cannot seem to find any specific information. Also, I am

aware

that other major and reputable companies such as Skinceuticals(which is owned

by a prestigious dermatologist) has a product called Phyto Corrective Gel

which contains 5% arbutin. Therefore, I would think that the Shiseido patent

may

not cover all arbutin products, or companies such as Skinceuticals would be

in trouble.

-Do you know where I can go to find more information about Shiseido

patent on arbutin?-

[Guest guest]

You wrote:

Before you make a purchase of synthetic Arbutin, you may want to check out

the Shiseido's patents on this ingredient.

Dear Maurice, thank you for the advice. I am aware of the patent that

Shiseido has for their arbutin. However, I am not sure exactly what their

patent

covers. I have tried searching for more specific information about their

arbutin patent but I cannot seem to find any specific information. Also, I am

aware

that other major and reputable companies such as Skinceuticals(which is owned

by a prestigious dermatologist) has a product called Phyto Corrective Gel

which contains 5% arbutin. Therefore, I would think that the Shiseido patent

may

not cover all arbutin products, or companies such as Skinceuticals would be

in trouble.

-Do you know where I can go to find more information about Shiseido

patent on arbutin?-

[Guest guest]

>I am aware of the patent that

>Shiseido has for their arbutin. However, I am not sure exactly what their

patent

>covers. I have tried searching for more specific information about their

>arbutin patent but I cannot seem to find any specific information.

You can search the US Patents from

http://www.uspto.gov/patft/index.html

I did a quick search for

Arbutin (all fields)

and

Shiseido (Assignee Name)

and got several hits:

PAT. NO. Title

6649179 Method for improving morbid dermatitis by inhibiting activity of a

plasminogen activator in the skin

6602848 Detergent composition comprising salts of hydroxyalkyl ether carboxylic

acids

6544966 Agents promoting laminin production in skin cells

6514538 External preparations for skin whitening

6419962 External skin treatment composition

6355608 Detergent composition

6352965 Transparent solid detergent composition

6346507 Liquid crystal composition and cosmetic preparation

6344435 Detergent composition

6303559 Detergent composition

6210693 Oil-in-water type emulsified composition

6197318 Composition for external use

6174543 Antidiabetic external skin application composition

6169114 Endermic liniment containing a thiol compound and zinc oxide

6150425 O/W/O type multiphase emulsion

6008246 External preparation for skin containing a low-molecular-weight betaine

5853705 Anti-aging cosmetic composition

5827920 Emulsion composition

5728683 External escinol preparation for skin

5693255 Oil-in-water type emulsion composition

5658578 Cosmetic composition

5631002 Liniment for melanin inhibitors

5580549 External preparation for skin

5500416 Percutaneous absorption promoting agent and dermatologic preparation

containing the same

5310730 Skin treatment composition

5120716 Percutaneous absorption promoting agent and dermatologic preparation

containing the same

4764505 Skin treatment composition

> Also, I am aware

>that other major and reputable companies such as Skinceuticals(which is owned

>by a prestigious dermatologist) has a product called Phyto Corrective Gel

>which contains 5% arbutin. Therefore, I would think that the Shiseido patent

may

>not cover all arbutin products, or companies such as Skinceuticals would be

>in trouble.

According to drugstore.com and other websites, SkinCeuticals Phyto Corrective

Gel contains:

Water, Botanical Glycosides, Uva Ursi Extract, Sodium Hyaluronate, Cucumber

Extract, Thyme Extract, Bioflavonoids, Phenoxyethanol, Herbal Fragrance

http://www.drugstore.com/qxp69015_333181_sespider/skinceuticals/phyto_corrective\

_gel.htm

Maybe they changed the formula.

Maurice

--------------------------------------------------------

Maurice O. Hevey

Convergent Cosmetics, Inc.

http://www.ConvergentCosmetics.com

-------------------------------------------------------